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Wednesday, November 22, 2017

Which of the following storage interconnect standards is network-routable?

Which of the following storage interconnect standards is network-routable?

  • SAS
  • iSCSI
  • SCSI
  • Fiber Channel 

Which of the following storage interconnect standards is network-routable?

EXPLANATION

From Techtarget.com:
iSCSI works by transporting block-level data between an iSCSI initiator on a server and an iSCSI target on a storage device. The iSCSI protocol encapsulates SCSI commands and assembles the data in packets for the TCP/IP layer. Packets are sent over the network using a point-to-point connection. Upon arrival, the iSCSI protocol disassembles the packets, separating the SCSI commands so the operating system (OS) will see the storage as a local SCSI device that can be formatted as usual. Today, some of iSCSI's popularity in small to midsize businesses (SMBs) has to do with the way server virtualization makes use of storage pools. In a virtualized environment, the storage pool is accessible to all the hosts within the cluster and the cluster nodes nodes communicate with the storage pool over the network through the use of the iSCSI protocol.

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