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[Acronym] for InterNet [SCSI].

[iSCSI] is a [TCP/IP] [Protocol] for encapsulating [SCSI] commands. It is defined in RFC:3720. This allows making block devices available on the network, accessed as if they were mounted locally. It also means only one host can mount an [iSCSI] device at a time, unless the FileSystem is read-only.

Contrast [NAS].

[iSCSI] has gained popularity over ~FibreChannel over [IP] (FCIP) because it can run over standard [Ethernet] (or any other) networks.

[iSCSI] is generally implemented in a driver (the ''initiator'') that takes [SCSI] commands generated by the OperatingSystem, encapsulates and encrypts them, adds a packet header and trasmits them as [IP] packets. The [iSCSI] device receives the packets, decrypts and disassembles them, and separates the [SCSI] commands and request. The [SCSI] commands are sent through the [SCSI] controller to the [SCSI] device (the ''target'').

The return trip works analogously.

See also:

* [iSCSINotes]
* WikiPedia:ISCSI
* [A Quick Guide to iSCSI on Linux|http://www.cuddletech.com/articles/iscsi/]
* [Cisco]'s [iSCSI initiator driver for Linux|http://linux-iscsi.sourceforge.net/]
* [Ardistech's iSCSI target driver for Linux|http://www.ardistech.com/iscsi/]
* [Microsoft|MicrosoftCorporation]'s [iSCSI resources for Windows|http://www.microsoft.com/windowsserver2003/technologies/storage/iscsi/default.mspx]
* [ATAoE]

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CategoryStorage

4 pages link to iSCSI:

Last edited on Tuesday, September 9, 2008 2:24:29 pm by DanielLawson

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