Possibly not. I've seen the same disk receive different SCSI Ids when exported
using stgt (linux userspace iSCSI target) and iscsitarget (linux kernel iSCSI
target).
You need to try it out. If /sbin/scsi_id outputs the same value at the
initiator for both LUNs then multipathd will consider them to be paths to the
same device and add them to the same map. (See /etc/multipath.conf for the
exact /sbin/scsi_id usage.)
Regards,
Alex
Claude Bing wrote:
Does this still apply if I'm using two separate iSCSI target devices
sharing the same data source (RAID)?
On Mar 19, 2010 1:24 PM, "Alex Zeffertt" <alex.zeffe...@eu.citrix.com
<mailto:alex.zeffe...@eu.citrix.com>> wrote:
Yes, I've done it!
multipathd uses /sbin/scsi_id to determine which block devices are
really the same as eachother. (Actually, the callout is configured in
/etc/multipath.conf, but its usually /sbin/scsi_id).
If /sbin/scsi_id returns the same ID for two block devices then you
should be able to failover between them.
The path failovers are handled by the kernel part of the
device-mapper-multipath package, and path recovery is handled by
multipathd.
Regards,
Alex
Claude Bing wrote:
>
> Hello,
>
> I am wondering if it is possible to failover an iSCSI path from
one EUI / IQN to one ...
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