DAS , SAN and NAS : Explain the difference

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What is Direct attached Storage (DAS)? How is it different from Storage area Network (SAN) and Network attached Storage (NAS)? What are the advantages provided by DAS over NAS and SAN? Where then would you say that DAS has a limitation? Where is a DAS device housed? Can it be connected to multiple devices?

 

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Answered By 0 points N/A #151840

DAS , SAN and NAS : Explain the difference

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Direct-attached storage (DAS):

Direct-attached storage is same as digital storage that is directly attached to the sarver and work station. Direct attached storage is not a part of storage.

Difference between DAS, NAS and SAN:

DAS:

• DAS is directly attached to the server.

• It is not a part of storage.

• Direct attached storage is not part of DAS.

NAS:

• NAS is stand for network attached storage.

• Direct attached storage is part of NAS.

SAN:

• SAN stand for Storage area network.

• SAN is design for hardware storage and software server.

• SAN is used to transfer date between computer system and storage system.

Advantages provided by DAS over NAS and SAN:

• DAS is directly attached to the server.

• Storage is not important for DAS.

Limitation in DAS:



• DAS storage is its limited scalability.

• A Host Bus Adaptor can only support a limited number of drives. For environments with stringent up-time requirements, or for environments with rapidly increasing storage requirements, DAS may not be the right choice.

Connection with multiple devices:

• DAS easily attach with multiple devices.

Answered By 0 points N/A #151841

DAS , SAN and NAS : Explain the difference

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Hello,

 

Direct-attached storage is storage that is attached directly to a server or system, which is not accessible to other systems without access privileges. What separates it from SAN and NAS storage is the limited access it offers to data, but it has the advantage of security. SAN and NAS also require more management and are less economical. DAS can be shared among multiple devices as long as those devices have access through an established portal.

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