Red Hat Bugzilla – Bug 688395
Support RHEL HA on RHEV 2.2 with iSCSI based storage + fence_scsi
Last modified: 2011-11-10 06:16:34 EST
Description of problem:
Need full testing of RHEL HA on top of RHEV 2.2 when the guest
cluster uses iSCSI for shared storage and fence_scsi as the I/O fencing agent.
Technical note updated. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
@@ -1,3 +1,6 @@
*** IF THIS PASSES QE ***
-It is now supported to run the High Availability Add-On for Red Hat Enterprise Linux 6 within guests managed by Red Hat Enterprise Virtualization. The caveat is that the guests must use SCSI-based fencing in conjunction with iSCSI storage; no other storage or fencing model is supported at this time.+It is now supported to run the High Availability Add-On for Red Hat Enterprise Linux 6 within guests managed by Red Hat Enterprise Virtualization. There are two caveats:
+1) The guests must use SCSI-based fencing in conjunction with iSCSI storage; no other storage or fencing model is supported at this time.
+2) The cluster configuration must use UDP Unicast (UDPU) for network transport. UDPU is technical preview. To enable the UDPU transport, manually add the line <cman transport="udpu"/> to the cluster.conf file. Please note that because of BZ#695795, it is not possible to override totem defaults with the totem tag. A complete cluster restart is required when making this change. The udpu transport is not on-wire compatible with the default multicast transport.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.