Post by habiba123820 on Nov 2, 2024 7:57:23 GMT
Let's start with the basics: there are servers, and there are data storage systems (aka DSS, not to be confused with storage area networks). It is important that these are physical devices, like your laptop or PC. I have already discussed the differences between servers and DSS in our blog .
There I also briefly touched on storage types: Network Attached Storage (NAS), Direct Attached Storage (DAS) and Storage Area Network (SAN). And these are not necessarily separate physical devices. The variability is great - from a simple flash drive to a complex IT infrastructure.
The topic is not easy, especially for beginners, but further in the article there will be a detailed analysis, with clear examples. Both system administrators will be able to refresh their memory, and beginners will understand.
I almost forgot - I'll tell you what type of storage to choose for your business needs.
A Brief Overview of DAS, NAS, and SAN
NAS, DAS and SAN are different wordpress web design agency methods of data storage, each with unique characteristics. They are not mutually exclusive - they can be mixed, or used separately. For example, the combined solution NAS-Gateway .
Let's take a quick look at these technologies, followed by a detailed analysis.
DAS - what is it, briefly with an example
DAS (Direct-Attached Storage) is an external device or internal storage device connected directly, not via a shared network, to a single server (sometimes to a cluster), PC, or workstation. Most often, they are connected via FC, SATA, eSATA, SAS, USB, and Thunderbolt interfaces. De facto, DAS is fast (if the interface is fast) local storage accessible only to the device it is connected to. The hard drive inside your PC is also a kind of DAS.
Modern external DAS devices have redundant power supplies, built-in cooling, disk controllers, and the ability to create RAID arrays to offload the server's main controller.
DAS use case: A video production company uses a DAS device (with its own power supply and cooling) to store large files and work with them without copying. This DAS is connected via Thunderbolt directly to the workstation - without an intermediate switch. The editor gets fast access to data and high-performance storage in real time when editing video. But to access video from other devices, the company uses NAS and cloud storage.
NAS - what is it, briefly with an example
A dedicated NAS device.
NAS (Network Attached Storage) is a specialized device or a server adapted for storing files with a network connection. Sometimes they even make a NAS out of a PC, but such a device loses to a specialized NAS server in terms of performance and/or availability and/or reliability. NAS can have its own storage system or disk shelf (JBOD, just-a-bunch-of-disks). Yes, you can connect DAS to NAS.
General purpose server adapted for NAS. Can also perform other functions.
As a rule, NAS is connected to the main servers, workstations or PCs via Ethernet. Since NAS stores files, the connection protocols are file-based: SMB/CIFS, NFS, FTP, SFTP, HTTP, WebDAV, DC, BitTorrent, etc.
Example of NAS use: A company has a network for centralized storage and file sharing between employees. All corporate information, documents, images and video files are stored on a NAS server. Each employee has quick and convenient access to data from anywhere on the network. All files are protected by access and encryption settings. Backup copies protect against data loss, and high-availability server technologies protect against work stoppages.
There I also briefly touched on storage types: Network Attached Storage (NAS), Direct Attached Storage (DAS) and Storage Area Network (SAN). And these are not necessarily separate physical devices. The variability is great - from a simple flash drive to a complex IT infrastructure.
The topic is not easy, especially for beginners, but further in the article there will be a detailed analysis, with clear examples. Both system administrators will be able to refresh their memory, and beginners will understand.
I almost forgot - I'll tell you what type of storage to choose for your business needs.
A Brief Overview of DAS, NAS, and SAN
NAS, DAS and SAN are different wordpress web design agency methods of data storage, each with unique characteristics. They are not mutually exclusive - they can be mixed, or used separately. For example, the combined solution NAS-Gateway .
Let's take a quick look at these technologies, followed by a detailed analysis.
DAS - what is it, briefly with an example
DAS (Direct-Attached Storage) is an external device or internal storage device connected directly, not via a shared network, to a single server (sometimes to a cluster), PC, or workstation. Most often, they are connected via FC, SATA, eSATA, SAS, USB, and Thunderbolt interfaces. De facto, DAS is fast (if the interface is fast) local storage accessible only to the device it is connected to. The hard drive inside your PC is also a kind of DAS.
Modern external DAS devices have redundant power supplies, built-in cooling, disk controllers, and the ability to create RAID arrays to offload the server's main controller.
DAS use case: A video production company uses a DAS device (with its own power supply and cooling) to store large files and work with them without copying. This DAS is connected via Thunderbolt directly to the workstation - without an intermediate switch. The editor gets fast access to data and high-performance storage in real time when editing video. But to access video from other devices, the company uses NAS and cloud storage.
NAS - what is it, briefly with an example
A dedicated NAS device.
NAS (Network Attached Storage) is a specialized device or a server adapted for storing files with a network connection. Sometimes they even make a NAS out of a PC, but such a device loses to a specialized NAS server in terms of performance and/or availability and/or reliability. NAS can have its own storage system or disk shelf (JBOD, just-a-bunch-of-disks). Yes, you can connect DAS to NAS.
General purpose server adapted for NAS. Can also perform other functions.
As a rule, NAS is connected to the main servers, workstations or PCs via Ethernet. Since NAS stores files, the connection protocols are file-based: SMB/CIFS, NFS, FTP, SFTP, HTTP, WebDAV, DC, BitTorrent, etc.
Example of NAS use: A company has a network for centralized storage and file sharing between employees. All corporate information, documents, images and video files are stored on a NAS server. Each employee has quick and convenient access to data from anywhere on the network. All files are protected by access and encryption settings. Backup copies protect against data loss, and high-availability server technologies protect against work stoppages.