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Differentiate between DAS and SAN in Computer Network.
DAS stands for Direct-attached storage. It is computer storage that is connected to one computer and not accessible to another. The System of DAS is attached directly to the computer through the HBA (Host Bus Adapter).
As compared to NAS devices, its device connects directly to the server without the network. The modern systems of this storage device include the integrated controllers of a disk array with advanced features.
The system of DAS is connected directly to the computer by the HBA (Host Bus Adapter. As compared to NAS devices, its device connects directly to the server without the network. The current systems of this storage device include the integrated controllers of a disk array with advanced features.
SAN stands for Storage Area Network. A SAN is a network of storage devices that can be accessed by multiple servers or computers, providing a shared pool of storage space.
Each computer on the network can access the SAN storage as though they were local disks connected directly to the computer.
The major benefit of SAN is its capability to transfer huge data blocks. This is very beneficial for bandwidth-intensive applications including imaging, database (cloud computing, virtual environments), and transaction processing.
SAN provides complete reliability and 24/7 availability of information. SAN is defined as the enterprise area because a huge investment is needed for its design, development, and deployment.
SAN is a network storage system that needs complex technologies to maintain implementation on the servers. The components can involve gateway tools, dedicated switches (or VLANs on a shared web), tape backup units, controller nodes, and disk shelves. The SAN system uses protocols including SCSI, iSCSI, and Fibre Channel.
The major differences between DAS and SAN are as follows −
|DAS stands for Direct Attached Storage.||SAN stands for Storage Area Network.|
|It is easy to install.||It is difficult to install.|
|It is not complex.||It is complex.|
|The capacity of DAS is only 109 bytes.||The capacity of SAN is more than 1012 bytes.|
|This storage device does not allow users to share files on different OS.||This storage device will enable users to transfer the files on different OS.|
|It uses sectors for backup and recovery.||It uses block by block copying technique for backup and recovery.|
|It uses IDE/SCSI for the transmission of data.||It uses Internet Protocol and Fibre Channel for the transmission of data.|
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