Isn't updated in /etc/multipath.conf on vdsm22-4.5-63.13. Moving back to Assigned.

vdsm22-4.5-63.13.el5_6 with a fix for this was build by me only today. Please recheck.

Checked on vdsm22-4.5-63.14.el5_6.

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
C: In Red Hat Enterprise Linux 5.6 the vdsm package set the dev_loss_tmo and polling_interval in /etc/multipath.conf to 60 seconds and 10 seconds respectively.
C: The timeout values were too large and caused slow path failover.
F: As of vdsm22-4.5-63.13.el5_6 the dev_loss_tmo and polling_interval are set to 30 seconds and 5 seconds respectively.
R: Storage path failover is faster.

Text: In Red Hat Enterprise Linux 5.6 the vdsm package set the dev_loss_tmo and polling_interval values in /etc/multipath.conf to 60 seconds and 10 seconds respectively. The timeout values were too large and caused slow path failover. As of vdsm22-4.5-63.13.el5_6 the dev_loss_tmo and polling_interval are set to 30 seconds and 5 seconds respectively. Storage path failover is faster.

    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.
    
    Diffed Contents:
@@ -3,4 +3,4 @@
 F: As of vdsm22-4.5-63.13.el5_6 the dev_loss_tmo and polling_interval are set to 30 seconds and 5 seconds respectively.
 R: Storage path failover is faster.
 
-Text: In Red Hat Enterprise Linux 5.6 the vdsm package set the dev_loss_tmo and polling_interval values in /etc/multipath.conf to 60 seconds and 10 seconds respectively. The timeout values were too large and caused slow path failover. As of vdsm22-4.5-63.13.el5_6 the dev_loss_tmo and polling_interval are set to 30 seconds and 5 seconds respectively. Storage path failover is faster.+Text: The vdsm package was setting the dev_loss_tmo and polling_interval values in /etc/multipath.conf to 60 seconds and 10 seconds respectively. These timeout values were too large and caused slow path failover. The dev_loss_tmo and polling_interval values are now set to 30 seconds and 5 seconds respectively. As a result, storage path failover is faster.

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.

http://rhn.redhat.com/errata/RHBA-2011-0319.html