Comments on: iSCSI 101: Setting up a simple iSCSI Storage Area Network

By: Ahmad Mushtaq

Ahmad Mushtaq — Tue, 06 Apr 2010 21:34:49 +0000

Thanks dear… There’s another confusion… iSCSI is used to send SCSI commands over an IP network… What if a non-SCSI hard-disk is attached to the file-server? Will the file-server/non-SCSI storage device understand the SCSI commands?

Regards…

By: admin

admin — Tue, 06 Apr 2010 01:22:24 +0000

Hi Ahmad,

Great question! There are two primary types of physical layers for SAN environments; fibre channel, as you mention, and ethernet networks (e.g, gigabit). Fibre Channel SANs use the Fibre Channel protocol, while SAN environments that use gigabit networking typically use iSCSI. iSCSI allows you to use SCSI commands on an IP network. There is also Fibre Channel over Ethernet (abbreviated FCoE) which is another way to use gigabit networks as the backbone for a SAN.

If you are giving a SAN presentation, you should certainly cover all three: FC, iSCSI, and FCoE. These are the three major SAN technologies today.

By: Ahmad Mushtaq

Ahmad Mushtaq — Mon, 05 Apr 2010 21:42:06 +0000

Thank you very much! It will surely help me in preparing my presentation on SAN. But I’ve a confusion in mind… I’ve heard that SAN operates only over fiber networks… But according to your post, it works over GigaBit LANs too…How?

Thanks…

Regards…..

By: LUN Share

LUN Share — Tue, 17 Nov 2009 18:46:43 +0000

If could add few lines about sharing a LUN between two servers, that would have been a great help

By: SCSI 68 Pin

SCSI 68 Pin — Fri, 16 Oct 2009 01:59:27 +0000

Very creative thanx for the infos such good info for startup

By: Oscar Ho

Oscar Ho — Thu, 23 Jul 2009 20:19:01 +0000

It is excellent and amazing, but how to make this work in Windows environment instead of Linuix. Thanks.

By: Knut Kristian Johansen

Knut Kristian Johansen — Fri, 19 Jun 2009 22:17:25 +0000

Very informative and well written!