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looking for Linux iSCSI target software that support SCSI-3 persistent reservations?

isci enterprise target

tgt: scsi-target-utils

open-iscsi

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3 Answers 3

up vote 2 down vote accepted

The one you need to start looking for is linux-iscsi. It's replacing the kernel iscsi target modules as of 2.6.38 (not yet released, but soon, git). It does support SCSI-3 persistant reservations, I'm using it right now on OpenSUSE 11.3 with a Microsoft Failover Cluster consuming storage via iSCSI.

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wonderful and exciting ! –  John-ZFS Feb 11 '11 at 18:25

This comparison chart from the SCST project includes information about which projects support persistent reservations.

Additionally, the following mailing list thread may be of interest:

This is my post to the linux-stgt (aka tgt) project mailing list, which includes some examples of using the sg3-utils package to test SCSI reservations. At the time of this post, the tgt project had support for persistent reservations, but did not support the PR_OUT_PREEMPT_AND_ABORT service action necessary to support RHEL5 i/o fencing.

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FreeNAS iSCSI targets support SCSI-3 Persistent Reservations. I built a two node Windows Server 2008 R2 cluster running Hyper-V role and was able to Live Migrate a VM from one host/node to the other.

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