Hello all, The fence_scsi method provided with RedHat's cman package uses SCSI persistent reservations as an i/o fencing mechanism. I've tried using this against an iSCSI target served by tgtd without much luck. The tool is able to successfully create a reservation by running: sg_persist -n -d <device> -o -R -K <key> -T 5 fence_scsi uses --preempt-abort to fence another node (prevent it from accessing a device) by running: sg_persist -n -d <device> -o -A -K <local key> -S <other key> -T 5 This results in the following error from sg_persist: PR out: bad field in cdb including unsupported service action I'm using the version of scsi-target-utils distributed with Fedora 13 (scsi-target-utils-1.0.1-4.fc13.x86_64). Has anyone else run into these problems? Is this expected to work? The tgt configuration looks like this: default-driver iscsi <target iqn.2001-04.com.obliquity-tgt-1> backing-store /var/lib/libvirt/images/shared.img </target> I see the same error message with tgtd 1.0.9. Additionally, both versions appear to freeze up completely if I try to use --preempt instead of --preempt-abort. Thanks for your help, -- Lars -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
