This bug has been copied from bug #505122 and has been proposed to be backported to 4.8 z-stream (EUS).
Committed in 89.0.6
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/RHSA-2009-1211.html
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: A bug in the SCSI implementation caused "Aborted Command - internal target failure" errors to be sent to Device-Mapper Multipath, without retries, resulting in Device-Mapper Multipath marking the path as failed and making a path group switch. With this update, all errors that return a sense key in the SCSI mid layer (including "Aborted Command - internal target failure") are retried.