Hi Piotr, If you have the iSCSI target on a different host(say HostA) from the cluster hosts, then you can create iSCSI connections to that target from both the hosts and use it as shared storage. The COMSTAR iSCSI target in 2009.06 implements scsi-2 reserve-release. If you use OpenSolaris 2009.06 on HostA, then you can use SCSI-2. If you want SCSI-3 PGR then the COMSTAR iSCSI target, that is on HostA, must run build 115.
BTW, no one has tested any of this, so all this is unsupported in OHAC 2009.06 ofcourse. Let me know what you find. On a related note, there is another scsi reservation bug that was found in iscsitgt. I am not sure if this is fixed in the COMSTAR iSCSI target or not. Someone will have to try it out to be sure. http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6803330 As you know, there is also a option in OHAC to disable fencing and use the iSCSI targets without worrying about scsi reservations. You could do that if your application does mostly reads and no writes. thanks, Augustus. Piotr Jasiukajtis wrote: > Hi Augustus, > > Do I understand that correctly? Now (from b115) it is possible to use > iSCSI target (for example from SXCE115) as a shared storage for OHAC > 2009.06 cluster in the same way as a physical SAN? > Yes, I know that 2-node Colorado Cluster uses iSCSI (both target and > initiator) to synchronize local disks on nodes. > > On Wed, Jun 10, 2009 at 6:24 PM, Augustus > Franklin<Augustus.Diraviam at sun.com> wrote: >> Hi Karl, >> >> There is a PGR bug in iscsitgt that was not fixed. See bug id 6804514 here, >> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6804514 >> >> PGR support in iscsit was added in a later build to 2009.06. See here, >> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6795089 >> >> Augustus. >>
