What is the name for a stand-alone digital storage system connected directly to a server or workstation HBA?

Question

Options

• ASmall Computer System Interface (SCSO
• BDirect Attached Storage (DAS)
• CNetwork Attached Storage (NAS)
• DStorage Area Network (SAN)

• A
  3% (1)
• B
  5% (2)
• C
  3% (1)
• D
  89% (33)

Explanation

SAN stands for storage area network. It is an architecture to attach remote computer storage devices to servers in such a way that the devices appear as locally attached to the operating system. Sharing storage usually simplifies storage administration and adds flexibility since cables and storage devices do not have to be physically moved to shift storage from one server to another. SANs also tend to enable more effective disaster recovery processes. An HBA is a Host Bus Adapter. This is used to connect the computer (server or workstation) to Incorrect Answers: A: SCSI is a computer bus used to move data to and from computer storage devices such as hard drives and tape drives. B: Direct-attached storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between. A typical DAS system is made of a data storage device connected directly to a computer through a host bus adapter (HBA). Between those two points, there is no network device (like hub, switch, or router), and this is the main characteristic of DAS. The main protocols used for DAS connections are ATA, SATA, eSATA, SCSI, SAS, and Fibre Channel. C: Network Attached Storage (NAS) is the hard disk storage that is set up with its own network address rather than being attached to the unit computer that is serving applications of a network's workspace users. A fully-featured operating system is not needed on a NAS device, so often a stripped-down operating system is used. NAS provides both storage and a file system.

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