Thursday, April 30, 2020
Gov’t finalizes transport guidelines under GCQ
By Azer Parrocha April 29, 2020, 10:26 am
The Inter-Agency Task Force for the Management of Emerging Infectious Diseases (IATF-EID) is working on finalizing the guidelines on the limited resumption of public transportation during the general community quarantine (GCQ), which will be implemented in some areas starting May 1.
Jeepneys may remain banned under the GCQ, for it would be difficult to maintain physical distancing, while buses may be allowed for as long as passengers would maintain enough distance from each other. Light Rail Transit Line 1 (LRT-1), LRT-2, Metro Rail Transit Line 3 (MRT-3), and the Philippine National Railways (PNR) are also considered to resume limited operations.
Public transport remains suspended under the enhanced community quarantine (ECQ) which was extended in Metro Manila and some areas until May 15.
Source: https://www.pna.gov.ph/articles/1101323
Tuesday, April 28, 2020
US coronavirus cases approach 1 million, one-third of global infections: tally
US cases of the novel coronavirus were approaching 1 million on Tuesday, having doubled in 18 days, and made up one-third of all infections in the world, according to a Reuters tally.
More than 56,000 Americans have died of the highly contagious respiratory illness COVID-19 caused by the virus, an average of about 2,000 a day this month, according to the tally.
The actual number of cases is thought to be higher, with state public health officials cautioning that shortages of trained workers and materials have limited testing capacity.
About 30 percent of the cases have occurred in New York state, the epicenter of the US outbreak, followed by New Jersey, Massachusetts, California and Pennsylvania.
Globally, coronavirus cases top 3 million since the outbreak began in China late last year. The United States, with the world's third-largest population, has five times as many cases as the next hardest-hit countries of Italy, Spain and France.
Of the top 20 most severely affected countries, the United States ranks fifth based on cases per capita, according to a Reuters tally. The United States has about 30 cases per 10,000 people. Spain ranks first at over 48 cases per 10,000 people, followed by Belgium, Switzerland and Italy.
US coronavirus deaths, the highest in the world, now exceed the total number of Americans killed in the 1950-53 Korean War - 36,516. Coronavirus deaths total just below the 58,220 Americans killed during the Vietnam War that ended in 1975.
The coronavirus has killed more people in the United States than the seasonal flu in recent years, except for the 2017-2018 season, according to the US Centers for Disease Control and Prevention (CDC).
Flu deaths range from a low of 12,000 in the 2011-2012 season to a high of 61,000 during 2017-2018.
Coronavirus deaths in the United States fall far short of the Spanish flu, which began in 1918 and killed 675,000 Americans, according to the CDC.
Unprecedented stay-at-home orders to try to curb the spread of the virus have hammered the economy, with the number of Americans seeking unemployment benefits over the last five weeks soaring to 26.5 million.
About a dozen states are beginning to relax the stay-at-home restrictions despite the warning of health experts that premature actions could cause a surge in new cases.
A Reuters/Ipsos survey this month found that a bipartisan majority of Americans want to go on sheltering in place to protect themselves from the coronavirus, despite the impact on the economy.
Source: https://news.abs-cbn.com/
Sunday, April 26, 2020
Difference between a Storage Area Network and Network Attached Storage
If you are managing your own infrastructure in your own private data center, then you are bound to go through a selection of different storage offerings. Selecting a storage solution pretty much depends on your requirement. Before finalizing a particular storage option for your use case, a little bit of understanding about the technology is always helpful.
I was actually going to write an article about object storage (which is the current hottest storage option in the cloud). But before going and discussing that part of the storage arena, I thought its better to discuss the two main storage methods which co-exists together from a very long time, used by companies internally for their needs.
The decision of your storage type will depend on many factors like the below ones.
Type of data that you want to store
Usage pattern
Scaling concerns
Finally your budget
When you begin your career as a system administrator, you will often hear your colleagues talking about different storage methods like SAN, NAS, DAS etc. And without a little bit of digging, you are bound to get confused with different terms in storage. The confusion arises often because of the similarities between the different approaches in storage. The only hard and fast rule to stay up to date in technical terms, is to keep on reading stuffs (especially concepts behind a certain technology.)
Today we will be discussing two different methods that defines the structure of storage in your environment. Your choice of the two in your architecture should only depend on your use case, and type of data that you store.
By the end of this tutorial, I hope you will have a clear picture about the main two types of storage methods, and what to select for your need.
SAN (Storage Area Network) and NAS(Network Attached Storage)
The main things that differentiate each of these technologies are mentioned below.
How a storage is connected to a system. In short how the connection is made between the accessing system and the storage component (directly attached or network attached)
Type of cabling used to connect. In short this is the type of cabling done to connect a system to the storage component (eg. Ethernet & Fiber channel)
How are input and output requests done. In short this is the protocol used to conduct input and output requests (eg. SCSI, NFS, CIFS etc)
Related: How to monitor IO on linux
Let's discuss SAN first and then NAS, and at the end, let's compare each of these technologies to clear the differences between them.
SAN(Storage Area Network)
Today's applications are very much resource intensive, due to the kind of requests that needs to be processed simultaneously per second. Take example of an e-commerce website, where thousands of people are making orders per second, and all needs to be stored properly in the database for later retrieval. The storage technology used to store such high traffic data bases must be fast in request serving and response(in short it should be fast in Input and Output).
Related: Web server Performance test
In such cases(where you need high performance, and fast I/O ) we can use SAN.
SAN is nothing but a high speed network that makes connections between storage devices and servers.
Traditionally application servers used to have their own storage devices attached to them. Server's talk to these devices by a protocol known as SCSI(Small Computer System Interface). SCSI is nothing but a standard used to communicate between servers and storage devices. All normal hard disks, tape drives etc uses SCSI. In the beginning the storage needs of a server was fulfilled by a storage devices that was included inside the server(the server used to talk to those internal storage device, using SCSI. This is very much similar to how a normal desktop talks to its internal hard disk.).
Devices like Compact Disk drives are attached to the server(which are part of the server) using SCSI. The main advantage of SCSI for connecting devices to a server was its high throughput. Although this architecture is sufficient for low end requirements, there are few limitations like the below mentioned ones.
The server can only access data on the devices, which are directly attached to it.
If something happens to the server, access to data will fail (because the storage device is part of the server and is attached to it using SCSI)
There is a limit in the number of storage devices the server can access. In case the server needs more storage space, there will be no more space that can be attached, as the SCSI bus can accommodate only a finite number of devices.
Also the server using the SCSI storage has to be near the storage device(because parallel SCSI, which is the normal implementation in most computer's and servers, has some distance limitations. It can work up to 25 meters.)
Some of these limitations can be overcame using DAS (Directly Attached Storage). The media used to directly connect storage to the server can be any one of SCSI, Ethernet, Fiber channel etc.). Low complexity, Low investment, Simplicity in deployment caused DAS to be adopted by many for normal requirement's. The solution was good even performance wise, if used with faster mediums like fiber channel.
Even an external USB drive attached to a server is also a DAS(well conceptually its DAS, as its directly attached to the server's USB bus). But USB drives are normally not used due to the speed limitation of USB bus. Normally for heavy and large DAS storage solutions, the media used are SAS(Serially attached SCSI). Internally the storage device can use RAID(which normally is the case) or anything to provide storage volumes to servers. SAS storage options provide 6Gb/s speed these days.
An example of DAS storage device is Dell's MD1220
To the server, a DAS storage will appear very much similar to its own internal drive or an external drive that you plugged in.
Although DAS is good for normal needs and gives good performance, there are limitations like the number of servers that can access it. Storage device, or say DAS storage has to be near to the server (in the same rack or within the limits of the accepted distance of the medium used.).
It can be argued that, directly attached storage(DAS) is faster than any other storage methods. This is because it does not involve any overhead of data transfer over the network (all data transfer occurs on a dedicated connection between the server and the storage device. Mostly its Serially attached SCSI or SAS). However due to latest improvement's in fiber channel and other caching mechanism's, SAN also provides better speed's similar to DAS, and in some cases, it surpasses the speed provided by a DAS.
Before getting inside SAN, let's understand several media types and methods that are used to interconnect storage devices(when i say storage devices, please dont consider it as one single hard disk. Take it as an array of disk's, probably in some RAID level. Consider it as something like Dell's MD1200).
what is SAS(Serially Attached SCSI), FC(Fibre Channel), and iSCSI (Internet Small Computer System Interface)?
Traditionally the SCSI devices like the internal hard disk's are connected to a shared parallel SCSI bus. This means all devices attached, will be using the same bus to send/receive data. But shared parallel connections are not good for high accuracy, and create issues during high speed transfers. However a serial connection between the device and the server can increase the overall throughput of the data transfer. SAS connections between storage devices and servers uses a dedicated 300 MB/Sec per disk. Think of SCSI bus that shares the same speed for all devices connected.
SAS uses the same SCSI commands to send and receive data from a device. Also please do not think that SCSI is only used for internal storage. It is also used for external storage device to be connected to the server.
If data transfer performance and reliability is the choice, then using SAS is the best solution. In terms of reliability and error rate SAS disks are much better compared to the old SATA disks. SAS was designed by keeping performance in mind, due to which it is full-duplex. This means, data can be send and received simultaniously from a device using SAS. Also a single SAS host port can connect to multiple SAS drives using expanders. SAS uses point to point data transfer by using serial communication between devices (storage device, like disk drives & disk array's) and hosts.
The first generation of SAS provided around 3Gb/s of speed. The second generation of SAS improved this to 6Gb/s. And the third generation (which is currently used by many organization's for extremly high throughput) improved this to 12Gb/s.
Fiber Channel Protocol
Fiber Channel is a relatively new interconnection technology used for fast data transfer. The main purpose of its design is to enable transport of data at faster rates with a very less/negligible delay. It can be used to interconnect workstations, peripherals, storage array's etc.
The major factor that distinguishes fiber channel from other interconnecting method is that, it can manage both networking and I/O communication over a single channel using the same adapters.
ANSI (American National Standards Institute) standardized Fiber channel during 1988. When we say Fiber (in Fiber channel) do not think that it only supports optical fiber medium. Fiber is a term used for any medium used to interconnect in fiber channel protocol. You can even use copper wire for lower cost.
Please note the fact that fiber channel standard from ANSI supports networking, storage and data transfer. Fiber channel is not aware of the type of data that you transfer. It can send SCSI commands encapsulated inside a fiber channel frame(it does not have its own I/O commands to send and receive storage). The main advantage is that it can incorporate widely adopted protocols like SCSI and IP inside.
The components of making a fiber channel connection are mentioned below. The below requirement is very minimal to achieve a point to point connection. Typically this can be used for a direct connection between a storage array and a host.
An HBA (Host Bus Adapter) with Fiber channel port
Driver for the HBA card
Cables to interconnect devices in HBA fiber channel port
As mentioned earlier, SCSI protocol is encapsulated inside fiber channel. So normally SCSI data has to be modified to a different format that fiber channel can deliver to the destination. And when the destination receives the data it then retranslates it to SCSI.
You might be thinking that why do we need this mapping and re-mapping, why cant we directly use SCSI to deliver data. Its because SCSI cannot deliver data to greater distances to large number of devices (or large number of hosts).
Fiber cannel can be used to interconnect systems as far as 10KM (if used with optical fibers. You can increase this distance by having repeaters in between). And you can also transfer data to an extent of 30m using a copper wire for lower cost in fiber cannel.
With the emergence of fiber channel switches from variety of major vendors, connecting many large number of storage devices and servers have now become an easy task(provided you have the budget to invest). The networking ability of fiber channel led to the advanced adoption of SAN(Storage Area Networks) for faster, long distance, and reliable data access. Most of the high computing environment's(which requires fast and large volume data transfers) uses fiber channel SAN with optical fiber cables.
The current fiber channel standard (called as 16GFC) can transmit data at the rate of 1600MB/s(dont forget the fact that this standard was released in 2011). The upcoming standards in the coming years are expected to provide 3200MB/s and 6400MB/s speed.
iSCSI(Internet Small Computer System Interface )
iSCSI is nothing but an IP based standard for interconnecting storage arrays and hosts. It is used to carry SCSI traffic over IP networks. This is the simplest and cheap solution(although not the best) to connect to a storage device.
This is a nice technology for location independent storage. Because it can establish connection to a storage device using local area networks, Wide area network. Its a Storage Area Network interconnection standard. It does not require special cabling and equipments like the case of a fiber channel network.
To the system using a storage array with iSCSI, the storage appears as a locally attached disk. This technology came after fiber channel and was widely adopted due to it low cost.
Its a networking protocol which is made on top of TCP/IP. You can guess that its not at all good performance wise, when compared with fiber channel(simply because everything is running over TCP with no special hardware and modifications to your architecture.)
iSCSI introduces a little bit of CPU load on the server, because the server has to do the extra processing for all storage requests over the network, with the regular TCP.
Related: Linux CPU performance Monitoring
iSCSI has the following disadvantages, compared to fiber channel
iSCSI introduces a little bit more latency compared to fiber channel, due to the overhead of IP headers
Database applications have small read and write operations, which when done on iSCSI will introduce more latency
iSCSI when done on the same LAN, which contains other normal traffic (other infrastructure traffic other than iSCSI), it will introduce a read/write lag or say low performance.
The maximum speed/bandwidth is limited to your ethernet and network speed. Even if you aggregate multiple links, it does not scal to the level of a fiber channel.
NAS(Network Attached Storage)
The simplest definition of NAS is "Any server that shares its own storage with others on the network and acts as a file server is the simplest form NAS".
Please make a note of the fact that Network Attached Storage shares files over the network. Not storage device over the network.
NAS will be using an ethernet connection for sharing files over the network. The NAS device will have an IP address, and then will be accessible over the network through that IP address. When you access files on a file server on your windows system, its basically NAS.
The main difference is in how your computer or the server treats a particular storage. If the computer treats a storage as part of itself(similar to how you attach a DAS to your server), in other words, if the server's processor is responsible for managing the storage attached, it will be some sort of DAS. And if the computer/server treats the storage attached as another computer, which is sharing its data through the network, then its a NAS.
Directly attached storage(DAS) can be viewed as any other peripheral device like mouse keyboard etc. Because to the server/computer, its a directly attached storage device. However NAS is another server, or say an equipment having its own computing features that can share its own storage with others.
Even SAN storage can also be considered as an equipment that has its own processing/computing power. So the main difference between NAS, SAN and DAS is how the server/computer accessing it sees. A DAS storage device appears to the server as part of itself. The server sees it as its own physical part. Although the DAS storage device might not be inside the server(its normally another device with its own storage array), the server sees it as its own internal part(DAS storage appears to the server as its own internal storage)
When we talk about NAS, we need to call them shares rather than storage devices. Because NAS appears to a server as a shared folder instead of a shared device over the network. Please do not forget the fact that NAS devices are computers in themselves, who can share their storage space with others. When you share a folder with access control using SAMBA, its NAS.
Although NAS is a cheaper option for your storage needs. It really does not suit for an enterprise level high performance application. Never ever think of using a database storage (which needs to be high performing) with a NAS. The main downside of using NAS is its performance issue, and dependency on network(most of the times, the LAN which is used for normal traffic is also used for sharing storage with NAS, which makes it more congested)
Related: Linux Network Performance Tuning
I was actually going to write an article about object storage (which is the current hottest storage option in the cloud). But before going and discussing that part of the storage arena, I thought its better to discuss the two main storage methods which co-exists together from a very long time, used by companies internally for their needs.
The decision of your storage type will depend on many factors like the below ones.
Type of data that you want to store
Usage pattern
Scaling concerns
Finally your budget
When you begin your career as a system administrator, you will often hear your colleagues talking about different storage methods like SAN, NAS, DAS etc. And without a little bit of digging, you are bound to get confused with different terms in storage. The confusion arises often because of the similarities between the different approaches in storage. The only hard and fast rule to stay up to date in technical terms, is to keep on reading stuffs (especially concepts behind a certain technology.)
Today we will be discussing two different methods that defines the structure of storage in your environment. Your choice of the two in your architecture should only depend on your use case, and type of data that you store.
By the end of this tutorial, I hope you will have a clear picture about the main two types of storage methods, and what to select for your need.
SAN (Storage Area Network) and NAS(Network Attached Storage)
The main things that differentiate each of these technologies are mentioned below.
How a storage is connected to a system. In short how the connection is made between the accessing system and the storage component (directly attached or network attached)
Type of cabling used to connect. In short this is the type of cabling done to connect a system to the storage component (eg. Ethernet & Fiber channel)
How are input and output requests done. In short this is the protocol used to conduct input and output requests (eg. SCSI, NFS, CIFS etc)
Related: How to monitor IO on linux
Let's discuss SAN first and then NAS, and at the end, let's compare each of these technologies to clear the differences between them.
SAN(Storage Area Network)
Today's applications are very much resource intensive, due to the kind of requests that needs to be processed simultaneously per second. Take example of an e-commerce website, where thousands of people are making orders per second, and all needs to be stored properly in the database for later retrieval. The storage technology used to store such high traffic data bases must be fast in request serving and response(in short it should be fast in Input and Output).
Related: Web server Performance test
In such cases(where you need high performance, and fast I/O ) we can use SAN.
SAN is nothing but a high speed network that makes connections between storage devices and servers.
Traditionally application servers used to have their own storage devices attached to them. Server's talk to these devices by a protocol known as SCSI(Small Computer System Interface). SCSI is nothing but a standard used to communicate between servers and storage devices. All normal hard disks, tape drives etc uses SCSI. In the beginning the storage needs of a server was fulfilled by a storage devices that was included inside the server(the server used to talk to those internal storage device, using SCSI. This is very much similar to how a normal desktop talks to its internal hard disk.).
Devices like Compact Disk drives are attached to the server(which are part of the server) using SCSI. The main advantage of SCSI for connecting devices to a server was its high throughput. Although this architecture is sufficient for low end requirements, there are few limitations like the below mentioned ones.
The server can only access data on the devices, which are directly attached to it.
If something happens to the server, access to data will fail (because the storage device is part of the server and is attached to it using SCSI)
There is a limit in the number of storage devices the server can access. In case the server needs more storage space, there will be no more space that can be attached, as the SCSI bus can accommodate only a finite number of devices.
Also the server using the SCSI storage has to be near the storage device(because parallel SCSI, which is the normal implementation in most computer's and servers, has some distance limitations. It can work up to 25 meters.)
Some of these limitations can be overcame using DAS (Directly Attached Storage). The media used to directly connect storage to the server can be any one of SCSI, Ethernet, Fiber channel etc.). Low complexity, Low investment, Simplicity in deployment caused DAS to be adopted by many for normal requirement's. The solution was good even performance wise, if used with faster mediums like fiber channel.
Even an external USB drive attached to a server is also a DAS(well conceptually its DAS, as its directly attached to the server's USB bus). But USB drives are normally not used due to the speed limitation of USB bus. Normally for heavy and large DAS storage solutions, the media used are SAS(Serially attached SCSI). Internally the storage device can use RAID(which normally is the case) or anything to provide storage volumes to servers. SAS storage options provide 6Gb/s speed these days.
An example of DAS storage device is Dell's MD1220
To the server, a DAS storage will appear very much similar to its own internal drive or an external drive that you plugged in.
Although DAS is good for normal needs and gives good performance, there are limitations like the number of servers that can access it. Storage device, or say DAS storage has to be near to the server (in the same rack or within the limits of the accepted distance of the medium used.).
It can be argued that, directly attached storage(DAS) is faster than any other storage methods. This is because it does not involve any overhead of data transfer over the network (all data transfer occurs on a dedicated connection between the server and the storage device. Mostly its Serially attached SCSI or SAS). However due to latest improvement's in fiber channel and other caching mechanism's, SAN also provides better speed's similar to DAS, and in some cases, it surpasses the speed provided by a DAS.
Before getting inside SAN, let's understand several media types and methods that are used to interconnect storage devices(when i say storage devices, please dont consider it as one single hard disk. Take it as an array of disk's, probably in some RAID level. Consider it as something like Dell's MD1200).
what is SAS(Serially Attached SCSI), FC(Fibre Channel), and iSCSI (Internet Small Computer System Interface)?
Traditionally the SCSI devices like the internal hard disk's are connected to a shared parallel SCSI bus. This means all devices attached, will be using the same bus to send/receive data. But shared parallel connections are not good for high accuracy, and create issues during high speed transfers. However a serial connection between the device and the server can increase the overall throughput of the data transfer. SAS connections between storage devices and servers uses a dedicated 300 MB/Sec per disk. Think of SCSI bus that shares the same speed for all devices connected.
SAS uses the same SCSI commands to send and receive data from a device. Also please do not think that SCSI is only used for internal storage. It is also used for external storage device to be connected to the server.
If data transfer performance and reliability is the choice, then using SAS is the best solution. In terms of reliability and error rate SAS disks are much better compared to the old SATA disks. SAS was designed by keeping performance in mind, due to which it is full-duplex. This means, data can be send and received simultaniously from a device using SAS. Also a single SAS host port can connect to multiple SAS drives using expanders. SAS uses point to point data transfer by using serial communication between devices (storage device, like disk drives & disk array's) and hosts.
The first generation of SAS provided around 3Gb/s of speed. The second generation of SAS improved this to 6Gb/s. And the third generation (which is currently used by many organization's for extremly high throughput) improved this to 12Gb/s.
Fiber Channel Protocol
Fiber Channel is a relatively new interconnection technology used for fast data transfer. The main purpose of its design is to enable transport of data at faster rates with a very less/negligible delay. It can be used to interconnect workstations, peripherals, storage array's etc.
The major factor that distinguishes fiber channel from other interconnecting method is that, it can manage both networking and I/O communication over a single channel using the same adapters.
ANSI (American National Standards Institute) standardized Fiber channel during 1988. When we say Fiber (in Fiber channel) do not think that it only supports optical fiber medium. Fiber is a term used for any medium used to interconnect in fiber channel protocol. You can even use copper wire for lower cost.
Please note the fact that fiber channel standard from ANSI supports networking, storage and data transfer. Fiber channel is not aware of the type of data that you transfer. It can send SCSI commands encapsulated inside a fiber channel frame(it does not have its own I/O commands to send and receive storage). The main advantage is that it can incorporate widely adopted protocols like SCSI and IP inside.
The components of making a fiber channel connection are mentioned below. The below requirement is very minimal to achieve a point to point connection. Typically this can be used for a direct connection between a storage array and a host.
An HBA (Host Bus Adapter) with Fiber channel port
Driver for the HBA card
Cables to interconnect devices in HBA fiber channel port
As mentioned earlier, SCSI protocol is encapsulated inside fiber channel. So normally SCSI data has to be modified to a different format that fiber channel can deliver to the destination. And when the destination receives the data it then retranslates it to SCSI.
You might be thinking that why do we need this mapping and re-mapping, why cant we directly use SCSI to deliver data. Its because SCSI cannot deliver data to greater distances to large number of devices (or large number of hosts).
Fiber cannel can be used to interconnect systems as far as 10KM (if used with optical fibers. You can increase this distance by having repeaters in between). And you can also transfer data to an extent of 30m using a copper wire for lower cost in fiber cannel.
With the emergence of fiber channel switches from variety of major vendors, connecting many large number of storage devices and servers have now become an easy task(provided you have the budget to invest). The networking ability of fiber channel led to the advanced adoption of SAN(Storage Area Networks) for faster, long distance, and reliable data access. Most of the high computing environment's(which requires fast and large volume data transfers) uses fiber channel SAN with optical fiber cables.
The current fiber channel standard (called as 16GFC) can transmit data at the rate of 1600MB/s(dont forget the fact that this standard was released in 2011). The upcoming standards in the coming years are expected to provide 3200MB/s and 6400MB/s speed.
iSCSI(Internet Small Computer System Interface )
iSCSI is nothing but an IP based standard for interconnecting storage arrays and hosts. It is used to carry SCSI traffic over IP networks. This is the simplest and cheap solution(although not the best) to connect to a storage device.
This is a nice technology for location independent storage. Because it can establish connection to a storage device using local area networks, Wide area network. Its a Storage Area Network interconnection standard. It does not require special cabling and equipments like the case of a fiber channel network.
To the system using a storage array with iSCSI, the storage appears as a locally attached disk. This technology came after fiber channel and was widely adopted due to it low cost.
Its a networking protocol which is made on top of TCP/IP. You can guess that its not at all good performance wise, when compared with fiber channel(simply because everything is running over TCP with no special hardware and modifications to your architecture.)
iSCSI introduces a little bit of CPU load on the server, because the server has to do the extra processing for all storage requests over the network, with the regular TCP.
Related: Linux CPU performance Monitoring
iSCSI has the following disadvantages, compared to fiber channel
iSCSI introduces a little bit more latency compared to fiber channel, due to the overhead of IP headers
Database applications have small read and write operations, which when done on iSCSI will introduce more latency
iSCSI when done on the same LAN, which contains other normal traffic (other infrastructure traffic other than iSCSI), it will introduce a read/write lag or say low performance.
The maximum speed/bandwidth is limited to your ethernet and network speed. Even if you aggregate multiple links, it does not scal to the level of a fiber channel.
NAS(Network Attached Storage)
The simplest definition of NAS is "Any server that shares its own storage with others on the network and acts as a file server is the simplest form NAS".
Please make a note of the fact that Network Attached Storage shares files over the network. Not storage device over the network.
NAS will be using an ethernet connection for sharing files over the network. The NAS device will have an IP address, and then will be accessible over the network through that IP address. When you access files on a file server on your windows system, its basically NAS.
The main difference is in how your computer or the server treats a particular storage. If the computer treats a storage as part of itself(similar to how you attach a DAS to your server), in other words, if the server's processor is responsible for managing the storage attached, it will be some sort of DAS. And if the computer/server treats the storage attached as another computer, which is sharing its data through the network, then its a NAS.
Directly attached storage(DAS) can be viewed as any other peripheral device like mouse keyboard etc. Because to the server/computer, its a directly attached storage device. However NAS is another server, or say an equipment having its own computing features that can share its own storage with others.
Even SAN storage can also be considered as an equipment that has its own processing/computing power. So the main difference between NAS, SAN and DAS is how the server/computer accessing it sees. A DAS storage device appears to the server as part of itself. The server sees it as its own physical part. Although the DAS storage device might not be inside the server(its normally another device with its own storage array), the server sees it as its own internal part(DAS storage appears to the server as its own internal storage)
When we talk about NAS, we need to call them shares rather than storage devices. Because NAS appears to a server as a shared folder instead of a shared device over the network. Please do not forget the fact that NAS devices are computers in themselves, who can share their storage space with others. When you share a folder with access control using SAMBA, its NAS.
Although NAS is a cheaper option for your storage needs. It really does not suit for an enterprise level high performance application. Never ever think of using a database storage (which needs to be high performing) with a NAS. The main downside of using NAS is its performance issue, and dependency on network(most of the times, the LAN which is used for normal traffic is also used for sharing storage with NAS, which makes it more congested)
Related: Linux Network Performance Tuning
Train possibly belonging to Kim Jong Un spotted at resort town
Report from US-based monitoring group comes amid speculation about the North Korean leader's health.
A train likely belonging to North Korea's leader has been spotted at a resort town in the country's east, satellite imagery showed, amid conflicting reports about Kim Jong Un's health and whereabouts.
In a report on Saturday, 38 North monitoring group said the train was parked at the "leadership station" in Wonsan on April 21 and April 23. The station is reserved for the use of the Kim family, according to the Washington, DC-based group.
"The train's presence does not prove the whereabouts of the North Korean leader or indicate anything about his health but it does lend weight to reports that Kim is staying at an elite area on the country's eastern coast," it said.
Speculation about Kim's health first arose due to his absence from the birth anniversary of North Korea's founding father and Kim's grandfather, Kim Il Sung, on April 15.
North Korea's state media last reported on Kim's whereabouts when he presided over a meeting on April 11.
China has dispatched a team to North Korea including medical experts to advise on Kim, Reuters news agency reported, citing three people familiar with the situation.
A third-generation hereditary leader who came to power after his father's death in 2011, Kim has no clear successor in a nuclear-armed country, which could present a significant international risk.
Daily NK, an online media outlet run mostly by North Korean defectors, reported last week that Kim underwent a cardiovascular procedure and was recovering at a villa in North Pyongan province.
Citing an unidentified source in the country, it said Kim, who is in his mid-30s, had needed urgent treatment due to heavy smoking, obesity and fatigue.
South Korea has played down the report.
On Thursday, US President Donald Trump downplayed reports that Kim was ill. "I think the report was incorrect," Trump told reporters, but he declined to say if he had been in touch with North Korean officials.
Trump has met Kim three times in an attempt to persuade him to give up a nuclear weapons programme that threatens the United States as well as its Asian neighbours. While talks have stalled, Trump has continued to hail Kim as a friend.
Reporting from North Korea is notoriously difficult because of tight controls on information.
On Thursday, citing an unidentified government official, South Korean broadcaster SBS reported that Kim appeared to have been in Wonsan for at least the past four days and would soon return to the public eye.
The report added that the military was monitoring Kim's train, which had been seen in Wonsan, while his personal jet - frequently used by Kim on his trips to Wonsan - remained in Pyongyang.
North Korea's state media remain silent about the international speculation on Kim's health. On Saturday, the official Korean Central News Agency (KCNA) reported that Kim had received a message of greeting from the chairman of the Central Committee of the Communist Party of the Russian Federation on the occasion of the first anniversary of Kim's summit with Russian President Vladimir Putin. The message wished Kim "good health and happiness", the KCNA said.
This is not the first time that Kim has vanished from the public eye, and past absences in state media dispatches have also triggered speculation about his health.
In 2014, state media did not report any public activities for Kim for about six weeks, before he reappeared with a cane. South Korea's spy agency later said he had a cyst removed from his ankle.
Source: https://www.aljazeera.com/news
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| A special train possibly belonging to North Korean leader Kim Jong Un is seen in a satellite image taken over Wonsan, North Korea on April 23, 2020 [File: Planet Labs-38 North/Handout via Reuters] |
In a report on Saturday, 38 North monitoring group said the train was parked at the "leadership station" in Wonsan on April 21 and April 23. The station is reserved for the use of the Kim family, according to the Washington, DC-based group.
"The train's presence does not prove the whereabouts of the North Korean leader or indicate anything about his health but it does lend weight to reports that Kim is staying at an elite area on the country's eastern coast," it said.
Speculation about Kim's health first arose due to his absence from the birth anniversary of North Korea's founding father and Kim's grandfather, Kim Il Sung, on April 15.
North Korea's state media last reported on Kim's whereabouts when he presided over a meeting on April 11.
China has dispatched a team to North Korea including medical experts to advise on Kim, Reuters news agency reported, citing three people familiar with the situation.
A third-generation hereditary leader who came to power after his father's death in 2011, Kim has no clear successor in a nuclear-armed country, which could present a significant international risk.
Daily NK, an online media outlet run mostly by North Korean defectors, reported last week that Kim underwent a cardiovascular procedure and was recovering at a villa in North Pyongan province.
Citing an unidentified source in the country, it said Kim, who is in his mid-30s, had needed urgent treatment due to heavy smoking, obesity and fatigue.
South Korea has played down the report.
On Thursday, US President Donald Trump downplayed reports that Kim was ill. "I think the report was incorrect," Trump told reporters, but he declined to say if he had been in touch with North Korean officials.
Trump has met Kim three times in an attempt to persuade him to give up a nuclear weapons programme that threatens the United States as well as its Asian neighbours. While talks have stalled, Trump has continued to hail Kim as a friend.
Reporting from North Korea is notoriously difficult because of tight controls on information.
On Thursday, citing an unidentified government official, South Korean broadcaster SBS reported that Kim appeared to have been in Wonsan for at least the past four days and would soon return to the public eye.
The report added that the military was monitoring Kim's train, which had been seen in Wonsan, while his personal jet - frequently used by Kim on his trips to Wonsan - remained in Pyongyang.
North Korea's state media remain silent about the international speculation on Kim's health. On Saturday, the official Korean Central News Agency (KCNA) reported that Kim had received a message of greeting from the chairman of the Central Committee of the Communist Party of the Russian Federation on the occasion of the first anniversary of Kim's summit with Russian President Vladimir Putin. The message wished Kim "good health and happiness", the KCNA said.
This is not the first time that Kim has vanished from the public eye, and past absences in state media dispatches have also triggered speculation about his health.
In 2014, state media did not report any public activities for Kim for about six weeks, before he reappeared with a cane. South Korea's spy agency later said he had a cyst removed from his ankle.
Source: https://www.aljazeera.com/news
Saturday, April 25, 2020
Kim Jong Un's Death Will Lead To 'Chaos, Human Suffering'; Dictator's Sister Is Possible Successor
Dead or alive? Probably the latter, but no one knows for certain what, if anything, happened to North Korean dictator Kim Jong-un that made him vanish from the public eye since April 12.
Kim is said to be recovering from a failed angioplasty operation to insert a stent into a blocked coronary artery. The obese Kim weighs more than 300 lbs, stands 172 cm tall and relentlessly smokes up to four packs of cigarettes a day, sources reveal.
Daily NK, a website run by North Korean defectors in Seoul, claims Kim has had to deal with cardiovascular disease since August 2019. Western media outlets earlier this week reported United States intelligence agencies revealing Kim is "in grave danger" following the angioplasty surgery conducted at his family's Hyangsan Clinic in North Pyongan province. Still other U.S. intel has Kim walking at a beach in the port city of Wonsan in eastern North Korea.
Whatever his true physical condition, Kim's death or impending death is raising fears it will destabilize this heavily militarized region and trigger a massive refugee exodus out of North Korea and into South Korea and China. Kim's fate will also force the U.S., South Korea and other regional allies to react to the upheaval to contain the Korean People's Army (KPA) with its 1.3 million active military personnel, the Military Times noted.
The gravest threat to stability in North Korea is the lack of a designated successor to Kim. All Kim's three children are still minors. This fact means the strongest contender for the title of Supreme Leader is Kim's younger sister, Kim Yo-jong, who is only 32 years old.
Without a designated successor to Kim, there will be “chaos, human suffering, instability,” believes retired South Korean Lt. Gen. Chun In-Bum, former head of his country’s special operations.
Chun was seconded in his opinion by David Maxwell, a senior fellow at the think-tank, Foundation for Defense of Democracies. Maxwell fears the worst, saying a U.S. and South Korean military reaction to the upheaval after Kim's death might require an effort that “will make Afghanistan and Iraq pale in comparison."
Like Chun, Maxwell also argues a lack of clear succession will trigger massive chaos as generals fight among themselves and then against the Kim family to succeed Kim. Maxwell said it's worth noting Kim Il-Sung designated his son, Kim Jong-il, as his successor in 1994. In turn, Kim Jong-il designated Kim Jong-un his successor in 2009 or 2010.
“It is unknown whether Kim Jong-un has designated a successor,” Maxwell told Military Times. "We can speculate that perhaps his sister Kim Yo-jong has been designated as his successor based on her recent promotion and the fact she has begun making official statements in her name beginning last month."
Maxwell said it remains unknown if "a woman, despite being part of the Paektu bloodline could become the leader of the Kim family regime.” He said no clear successor will likely lead to a regime collapse.
The ensuing in-fighting will be bloody and will pit the generals commanding the KPA against the Workers Party of Korea and the Kims in a civil war.
Maxwell believes there will be a lot of bad outcomes to this power struggle. He warns the South Korean/U.S. alliance to be prepared to handle the ensuing military crisis. Then, there's COVID-19.
There is a “humanitarian disaster that will unfold in North Korea,” estimates Maxwell. It will be further complicated by the COVID-19 pandemic currently ravaging the country.
“South Korea, China, and Japan are going to have to deal with potential large scale refugee flows,” said Maxwell. “Units of the North Korean People’s Army are going to compete for resources and survival. This will lead to internal conflict among units and could escalate to widespread civil war.
Original Content here: https://www.lucisphilippines.press/2020/04/kim-jong-uns-death-will-lead-to-chaos.html?m=1
Friday, April 24, 2020
Duterte extends Philippines lockdown until May 15, changes coverage
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| Entrance to small streets are barricaded with “lockdown” signs in Mandaluyong on April 17, 2020. George Calvelo, ABS-CBN News |
MANILA (2ND UPDATE) – President Rodrigo Duterte extended Friday the Philippines' lockdown to May 15 and changed the areas covered by movement restrictions that shuttered businesses for weeks.
The so-called enhanced community quarantine will remain in Metro Manila, the Southern Tagalog (Calabarzon) and Central Luzon regions, Mindoro island, and the provinces of Pangasinan, Benguet, Catanduanes, and Albay.
The provinces of Benguet, Pangasinan, Tarlac, and Zambales meanwhile will be subject to a recheck by April 30.
The lockdown will also be extended until May 15 in "high risk" areas in Visayas and Mindanao, subject to rechecking. These are Antique, Iloilo, Aklan, Capiz, and Cebu in the Visayas, and Davao del Norte, Davao de Oro, and Davao City in Mindanao.
"We are all at risk but do not increase the odds or chances of getting it (COVID-19)," Duterte said in a televised address, wearing a face mask.
"We're just waiting for the right time. Tiisin lang muna natin ako nakikiusap sa inyo para lang sa bayan because we are trying to limit the contamination," he added.
(Please bear with us, for the country, because we are trying to limit the contaminaton.)
Other areas will be under general community quarantine starting May 1, which means limiting the "stay home" policy to those in the 0 to 20 age group, and the elderly or those 60 years old and above.
The Inter-Agency Task Force on Emerging Infectious Diseases recommended the extension to the President after experts warned that lifting restrictions too soon could spark a second wave of infections.
Since the lockdown started on March 17, over 50 million people in the Philippine island of Luzon have been forced to stay home to contain the spread of COVID-19. The May 15 lifting target is the second extension.
Malacañang earlier said the government considered the capability of health facilities to respond to the pandemic in deciding whether or not to end the Luzon-wide lockdown.
"Importanteng tingnan natin 'yung mga numero on a geographical basis. At ang tanong nga natin ay sapat ba ang kakayanan ng health sector sa lugar na 'yun na gamitin lahat ng magkakasakit kung ire-relax o ili-lift ang ECQ," Harry Roque said.
(It's important to look at the figures on a geographical basis. The question that we're asking is whether the health sector can adjust to whatever decision will be made on the enhanced community quarantine.)
As of Thursday, the Philippines had a cumulative 6,981 confirmed COVID-19 cases, including 462 deaths and 722 recoveries.
Since emerging in Wuhan City in Hubei province, China, the novel coronavirus has infected some 2.6 million people worldwide and killed 185,000 others, according to a running tally from US-based John Hopkins University.
Original Content here: https://news.abs-cbn.com/news/04/24/20/duterte-extends-philippines-lockdown-until-may-15-changes-coverage
Thursday, April 23, 2020
Studying the numbers': Duterte ponders Philippines lockdown fate
Manila, Philippines -- With a little more than a week left before the scheduled end of the Philippines's strict community quarantine measures to slow the spread of the coronavirus, the country is expected to find out on Thursday how the government plans to transition out of the lockdown.
On Monday, President Rodrigo Duterte met former health secretaries, experts and other legislators to discuss the possibility of extending the lockdown with modifications to allow selected non-essential businesses to resume operations or to lift it entirely.
Original Content here: https://www.aljazeera.com/news/2020/04/philippines-duterte-decide-continue-lockdown-200423013039365.html
Wednesday, April 22, 2020
Chinese Embassy rejects call for China to pay for PH's COVID-19 response
Metro Manila (CNN Philippines, April 22) — The Chinese Embassy on Wednesday blasted a Filipina senator for demanding that China pay the Philippines' expenses in battling COVID-19 as a reparation for destroying the reefs at West Philippine Sea.
Senator Risa Hontiveros said China owes the country some ₱200 billion for "at least six year’s" worth of environmental damages.
Hontiveros cited the breakdown of costs reported by the University of the Philippines’ Marine Science Institute, which states that the destruction to the reefs in Scarborough Shoal and Spratly Islands is equivalent to at least ₱33.1 billion in annual losses. This is reportedly on top of other economic and health costs.
The senator added that the compensation should be used to fund efforts against the coronavirus disease and extend aid to affected families.
“The government should demand what is rightfully ours and use this to help the Filipino people battle COVID-19,” she said.
The Chinese embassy, in response, reduced the senator’s call to a “selfish political” tactic.
“At this trying time, it is ridiculously absurd and irresponsible to make such remarks for the sole purpose of catching eyeballs and for selfish political gains,” it said, adding that the two countries are "friendly neighbors across the sea."
The West Philippine Sea are areas that the Philippines claims and occupies in the disputed South China Sea. While an international arbitration has already favored Manila by concluding China has no claims to the bulk of the global waterway, Chinese President Xi Jinping continues to ignore the ruling.
RELATED: COVID-19 not stopping 'steady increase of Chinese harassment' in South China Sea
‘Demand unpaid taxes from POGOs’
Apart from compensation for marine environmental damages, Hontiveros also said the government should demand the ₱50 billion unpaid taxes from Philippine Offshore Gaming Operators (POGO).
She also urged the government to reassess its decision to allow POGOs to operate once the lockdown is lifted. The online gambling firms have been involved in multiple allegations of crimes linked to their operation, such as corruption, money laundering, bribery, tax evasion, kidnapping and sex trafficking.
“Hindi na nga buo ang binabayad nilang tax, may korapsyon at sex trafficking pang pinapalaganap,” Hontiveros said.
[Translation: On top of failing to pay for their taxes, they are even committing corruption and sex trafficking in the country.]
The taxes obtained from POGOs should likewise be used to augment assistance to Filipinos suffering from the impact of the viral disease, she added.
For its part, the Chinese embassy maintained that China and the Philippines are “working closely” to address the threats of the coronavirus disease. It also assured that China will provide assistance “to the best of [its] ability” in the fight against the pandemic.
The Chinese government has sent a team of medical experts to share technical advice on the prevention and control of COVID-19. It has also donated medical supplies including surgical and N95 masks, protective suits, face shields, and non-invasive ventilators.
Original Content here: https://cnnphilippines.com/news/2020/4/22/Chinese-embassy-Risa-Hontiveros-reparation-covid-response.html?fbclid=IwAR1GWwjM3SvuklIDjIWDbKc54av_lYLhHVTACszmfKe2YfDuS96055i9u1k
Tuesday, April 21, 2020
Duterte floats ₱10-M reward for Filipino who can invent COVID-19 vaccine
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| President Rodrigo Duterte |
Metro Manila (CNN Philippines, April 21) — President Rodrigo Duterte is pouring more funds into the search for a cure for COVID-19, promising a research grant for local scientists and a separate reward for anyone who can develop a vaccine.
"Dahil public enemy number one nga itong COVID-19 hindi lang dito sa Pilipinas kundi sa buong mundo, inanunsyo ng Pangulo na siya ay magbibigay ng pabuya na hanggang ₱10 milyon sa kahit sinong Pilipino na makakadiskubre ng vaccine laban sa COVID-19," Presidential Spokesperson Harry Roque said Tuesday.
[Translation: Because we consider COVID-19 as public enemy number one not only here in the Philippines but also globally, the President announced that he is giving a bounty of up to ₱10 million to any Filipino who will discover a vaccine against COVID-19.]
On top of this, Duterte also pledged a "substantial" grant to the laboratories of the University of the Philippines and the Philippine General Hospital to boost efforts towards producing a cure for the deadly disease, Roque said. However, the amount was not disclosed.
PGH has been identified as one of the main referral hospitals for coronavirus patients.
Abroad, there are dozens of pharmaceutical firms racing against time in coming up with a viable treatment, although some experts say these will unlikely be in the market in the next several months. For now, doctors are trying to use medicines meant for other diseases on COVID-19 patients.
Several drug companies in the United States and China have started clinical trials for potential cures.
COVID-19 is a disease caused by a coronavirus called SARS-CoV-2, which is related to the virus that causes Severe Acute Respiratory Syndrome but not as deadly. The disease is spread through small droplets from the nose or mouth when people infected with the virus cough or sneeze.
To prevent further infections, Duterte placed the entire Luzon under an extended lockdown which will expire on April 30, with no hints yet whether the strict stay-at-home rules will be eased or sustained for millions of Filipinos.
Currently, PGH doctors have been trying an experimental plasma therapy for patients in critical condition. Scientists are checking if they can tap the antibodies developed by a recovered person to help a struggling patient combat the infection. For this process, the plasma — or the liquid portion of the blood from someone who once battled the coronavirus — carries antibodies, which will be infused into a patient's system with hopes to boost the chances of recovery.
A number of recovered COVID-19 patients, including Senators Sonny Angara and Migz Zubiri, have donated blood to support this treatment.
FAST FACTS: Donating blood plasma for COVID-19 patients
The President earlier said that he would only lift the quarantine measures once an antibody cure for COVID-19 is ready for widespread use. He did not name which drug maker is behind this, but said that the treatment may be rolled out in the market as early as May.
Original Content here: https://www.cnnphilippines.com/news/2020/4/21/Duterte-reward-COVID-19-vaccine.html
Monday, April 20, 2020
COVID-19 recoveries top 600 as cases climb to 6,459
Metro Manila (CNN Philippines, April 20) — Over 600 people have now recovered from COVID-19 in the country, the Health Department reported Monday.
The department reported 41 new recoveries, bringing the total to 613.
It also reported 200 new cases of the disease caused by the coronavirus called SARS-CoV-2, with the count of those who have contracted it now at 6,459.
The Health Department also reported 19 new fatalities, raising the death toll to 428.
On Thursday, it said more than 80 percent of coronavirus patients either exhibit mild symptoms or none at all. The country’s fatality rate, meanwhile, stands at 6.6 percent, which is slightly higher than the global average of 6.4 percent.
There have been more recoveries than deaths for the third consecutive day, as the DOH started including in its report patients who have gotten well while under home quarantine. Previously, its recovery count only included those confined in hospitals.
The DOH also explained that it takes around 13 days up to more than a month for patients to recover, depending on the severity of their symptoms.
To contain the spread of the virus, the government has placed Luzon under enhanced community quarantine for a month now, suspending most work, classes, and mass transportation so people would stay home.
The Luzon-wide quarantine has been extended until April 30 amid daily spikes in new infections. Other local government units across the country enforced their own lockdowns.
The Philippines confirmed its first case in late January, a month after the coronavirus outbreak began in Wuhan, China. COVID-19 has since infected more than 2.4 million worldwide and killed over 165,000, according to the Johns Hopkins University's COVID-19 global tracker.
Source: https://www.cnnphilippines.com/
Sunday, April 19, 2020
Saturday, April 18, 2020
Duterte to PNP, AFP: ‘Be ready’ to enforce quarantine protocols
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| President Rodrigo Duterte |
In a televised public address, Duterte told the police and the military to get ready to oversee the implementation of Luzon-wide ECQ.
He made the pronouncement, as he vented frustrations over the reported quarantine violations despite his repeated calls on the public to stay home to stop the further transmission of coronavirus disease 2019 (Covid-19).
Duterte said his order would be akin to the declaration of “martial law.”
“I’m just asking for your disiplina kasi ‘pag ayaw ninyo, mag-take over ang military pati pulis (I’m just asking for your discipline because if you won’t follow, I’d ask the police and the military to take over). I am ordering them now to be ready,” he said in a speech aired over state-run PTV-4.
Duterte’s statement came after receiving reports that there are over 100,000 quarantine violators.
As of April 13, some 107,088 individuals have violated ECQ protocols.
Earlier Thursday, Cabinet Secretary Karlo Nograles said the promulgation of martial rule was not an option.
Under Article 7, Section 18 of the 1987 Constitution, the President can declare martial law, “in case of invasion or rebellion, when the public safety requires it.”
“Ang pulis pati military ang mag-enforce ng social distancing at ‘yung curfew. Sila na. Parang martial law na rin. Mamili kayo. Ayaw ko pero [kailangan] kapag naipit na ang bayan at walang disiplina kayo (The police and the military would enforce the social distancing and curfew. They will be in charge. It would be similar to martial law. You choose. I don’t like it but it’s necessary if the country will suffer because you have no discipline),” Duterte said.
Probe cockfight, drinking sessions
Duterte earlier placed Luzon Island under ECQ until April 30 to arrest the spread of Covid-19.
But following the reported rise in quarantine violations, Duterte ordered the Department of the Interior and Local Government (DILG) to investigate those behind the cockfighting activities and drinking sessions during the ECQ period.
“I’d like the DILG to investigate kung sinong nagpasabong pati ‘yung nag-iinuman (Individuals who are involved in cockfighting and drinking sessions),” Duterte said.
Duterte also told individuals engaged in cockfighting and drinking session that they would not receive any assistance from the national government.
“Do not expect any help from me. Sabihin oo talaga. Sorry na lang. May pera pala kayong pang-sabong. May pera pala kayong pang-inom (I’m really telling you now. I feel sorry for you. You have money for cockfighting activities and drinking sessions),” he said.
The DILG on Tuesday said three village officials in Caloocan City were given a show-cause order for allegedly being involved in illegal cockfighting at the Manila North Cemetery on April 11.
Despite his latest warning, Duterte admitted that it pains him to impose the ECQ.
“I have to admit it, this thing about the sequestration or quarantine is a cruel action by the government. Hindi madali ito. Pati ako nasasaktan (It’s not easy for us. I’m also hurt by it),” he said.
Duterte ensured that he would order the immediate lifting of the ECQ in Luzon without even a “single moment of delay.”
Acknowledging that the Covid-19 pandemic is a “calvary” for the country, Duterte expressed hope for an end of the health crisis.
“I hope that this dilemma that we are facing now will end soon. Lahat naman tayo nagda-dasal eh (We are all praying for it),” Duterte said. “I’m calling the Almighty God to have mercy on his people, for all mankind.”
Duterte also renewed his appeal to his fellow Filipinos to follow the quarantine protocols to ensure the successful fight against Covid-19.
He reminded them to strictly observe home quarantine, social distancing, and the wearing of face masks.
“Sumunod ka kasi ‘pag hindi, ang kaharap mong sunod, ang militar na pati pulis (Follow because if you defy the orders, you will have to face the military and the police),” Duterte said.
As of April 16, the Philippines has recorded 5,660 confirmed Covid-19 infections, with 362 fatalities and 435 recoveries. (PNA).
Original Content here: https://www.pna.gov.ph/articles/1100126
Friday, April 17, 2020
With weekend lockdowns and age-specific restrictions, Turkey takes a different coronavirus approach
Istanbul (CNN)Taksim Square's flocks of resident pigeons, normally waddling around with full bellies thanks to cups of grains that children toss at them, swoop unhindered straight at the heads of the few passers-by, mostly policemen and media.
It feels more like a scene from Alfred Hitchcock's horror thriller "The Birds" than one of Istanbul's most crowded squares, normally teeming with Turks and tourists alike.
Then again, nothing about the impact Covid-19 is having across the globe is normal or familiar.
Last weekend, the Turkish government implemented a 48-hour curfew for 31 provinces, impacting three quarters of Turkey's population.
And while critics of the government have been calling for these types of severe measures to curb the rise of Covid-19, the initial outcome was disastrous.
The curfew was announced just two hours before it was to go into effect -- causing a buying panic in some areas as people flocked to grocery stores and bakeries with little regard for social distancing measures.
People queue at shops for food shortly before the curfew in Istanbul, on April 10, 2020.
Social media was flooded with coronavirus dark humor: a husband caught in breach of the curfew fleeing the scene leaving his car and wife behind; a man who tries to dodge the penalty fee by saying he doesn't speak Turkish, but the police figure out that he does.
Following the chaos around the curfew, President Recep Tayyip Erdogan addressed the nation, arguing that Turkey is strong enough to protect and provide for its citizens, while urging the population to stay at home, and announcing another weekend curfew.
In confronting coronavirus, Turkey is charting its own path -- as it does in so many other ways.
During the week, the stay-at-home order only applies to those under the age of 20 or over 65. All other citizens are in theory allowed to go out, although many small businesses are closed, restaurants are open for delivery or pick-up only, public places like parks are off limits, and banks have limited hours.
By contrast, construction sites are in full swing, along with factories and other businesses that are unwilling to take an economic hit.
Some experts say partial restrictions like Turkey's can be successful -- as long as those who are vulnerable continue to be protected and those who do venture out follow the appropriate measures.
"It's an alternative strategy," said Dr. Muhammad Munir, a virologist at Lancaster University in the United Kingdom, explaining that healthy people going out for routine shopping does not necessarily do any harm.
"Eighty percent of the people infected have recovered. So, if it's healthy people who don't have underlying causes, then that is absolutely helpful. The only benefit of a lockdown is that the spread of the disease will be slow, the pressure on the hospitals will be reduced."
Dr. Jeremy Rossman, a honorary senior lecturer in Virology at the University of Kent says it's tricky given the numbers of cases that Turkey is reporting daily, and that partial lockdowns are only really effective when done early on and a country still has a low level of cases, or if a country has already peaked and is coming out of a full lockdown.
"At [Turkey's] level, most countries are implementing a full lockdown. A partial lockdown can be good, it can balance keeping some of the economy functioning while still trying to contain the outbreak" He says. "It depends on how well the population is adhering to the guidance and how well physical distancing and hand hygiene are being implemented in workplaces. But at the rate Turkey is going right now, there is risk this won't be sufficient."
Pigeons fly around a deserted Taksim Square after a two-day curfew imposed to stem the spread of coronavirus in Istanbul.
Turkey is among the top 10 countries in the world when it comes to confirmed coronavirus cases, and its toll is increasing by more than 4,000 cases per day. And the mortality rate has been much lower here than elsewhere -- which has raised eyebrows.
The Turkish Medical Association (TMA) says Turkey's official coronavirus death statistics do not include cases that strongly indicate Covid-19 but test negative.
"Doctors that belong to our association have reported that even those CT scans and/or clinical findings indicate the disease, if PCR test results are not positive, if the patient dies they are not recorded as Covid-19," the TMA said in their report. CT scans are imaging tests, while PCR tests are used to detect the RNA of the virus.
Turkish Health Minister Fahrettin Koca argues that Turkey's mortality rate -- just above 2% -- is due to the country's large healthcare capacity and a treatment protocol that is different than other countries.
Koca says that, unlike other countries, Turkey's approach to fighting Covid-19 centers around contact tracing instead of general testing or testing after clinical presentation.
They have also been delaying intubation by using high frequency oxygen for a longer period of time, which he says has yielded better results.
And Turkey uses the malaria drug hydroxychloroquine and favipiravir, a Japanese antiviral, much earlier than other countries in the onset of Covid-19, Koca says.
But Lancaster University's Dr. Munir is one of many medical experts who opposes the use of the malaria drug.
He said the risk of the side effects outweighs any benefit that using hydroxychloroquine may have.
"Treatments have very little impact," he explained. "When it comes to hydroxychloroquine, the patients might have recovered from Covid-19 anyway, but after a year they might see heart problems coming back, that blindness is appearing. This is why there isn't enough evidence to approve these drugs on a mass scale."
"We are trying to save lives," says Dr. Nuri Aydin, the president of Istanbul University-Cerrrahpasa School of Medicine, one of the hospitals leading Turkey's response. "What we have seen is that the time that the patients spend in the ICU decreases when they take hydroxychloroquine before they reach the stage where they have to enter the ICU."
Aydin says there isn't enough data to publish their findings yet and that "time will show us the real results." And he adds that they are doing something else differently: Rather than having their patients lying face up, they are keeping many in the prone, ie face down, position. This, he says, has yielded positive results as well. And Turkey has started using plasma from patients that already contracted the disease on those that are still fighting it.
The government says its ICUs still have plenty of capacity and there is no shortage of hospital beds. And Turkey, which did not report its first case until mid-March, had time to prepare. Indeed, Turkey's hospital system is so good that the country has become a medical tourism destination.
In response to Covid-19, the country quickly developed programs to manufacture and distribute personal protective equipment (PPE) not just within Turkey itself, but overseas as well -- sending cargo loads to more than 30 countries, including the UK, Spain, and Italy.
The gesture of solidarity and goodwill is also perhaps aimed at rebuilding Turkey's frayed ties with its NATO allies.
Ministry of Education vocational schools in Istanbul and elsewhere have been turned into workshops churning out face masks, body suits, and surgical gowns intended for in-country use.
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| Soldiers walk at the empty mausoleum of the founder of the Turkish Republic Mustafa Kemal Ataturk in Ankara on March 23. |
Others produce face shields and gallons and gallons of disinfectants, hand sanitizers, and other essential cleaning products. Masks are obligatory in public places like markets, but are not sold anywhere anymore.
That was banned because the government is distributing them free at pharmacies, or for those who can't go out, straight to their homes.
Turkey is easing the burden of the epidemic on those under stay at home orders by sending volunteers and police door to door to make sure vulnerable people have the services they need.
Call centers called "Acik Kapi" -- Open Door -- area located in every district where those elderly citizens under stay-at-home orders can call in requesting anything from a grocery delivery, pharmacy purchase or their monthly retirement cash.
Eyup is one of Istanbul's populous historic districts, where the phone rings nonstop.
Serdar Karakus, a school headmaster's assistant, and Ugur Uyan, a neighborhood mosque imam, have been authorized to withdraw people's retirement funds and deliver them to citizens who request their service.
They are both volunteers who say they do this as their duty to their country and their people.
"My parents are elderly. I live in Istanbul. They live in Manatya. They are receiving this service where they are because I am not there to help them," Karakus said. "But someone there is. So to do this for the elderly here, it's like I am doing it for my own parents."
A few hours later we join a group of policemen who are doing the rounds handing out face masks and Kolonya, a traditional Turkish version of hand sanitizer made up of 80 percent alcohol, usually scented with lemon fragrance.
Sadet Seker, in her 70s, lives alone. Her husband passed away years ago. She speaks to her children regularly on the phone.
But the last time she hugged them -- the last time she had physical contact with them -- was two or three months ago. She's not sure. We ask if they are in Istanbul.
"Yes, they are in Istanbul," she replies and then starts to shake, her eyes filling with tears.
They are so close, and yet they might as well be so far away. How soon she can actually see them will depend on whether or not Turkey's Covid-19 strategy is a successful gamble.
Source: https://edition.cnn.com/
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