IBM has seen issues with SVC, Storwize V7000 and Storwize V7000 Unified during activities which result in path failover whereby paths are slandered by the Linux operating system when running with Qlogic 8.01.07 or higher and Emulex 8.16.34 or higher.
Should this situation occur with SVC, Storwize V7000 and Storwize V7000 Unified then manually resetting the paths to an online state will resolve the issue.
To bring the paths back on line manually, check the file named 'model' in all /sys/class/scsi_device/<device dir>/device directories. If 'model' contains 2145 then:
check the file named 'online' in the same directory:
if it contains "0" then the relative path has been slandered so change to "1" by running:
echo 1 > /sys/class/scsi_device/<device dir>/device/online
for Red Hat
check the file named 'state' in the same directory:
if it contains "offline" then change to "running" by
echo "running" > /sys/class/scsi_device/<device dir>/device/state
These issues have been resolved in later levels of Linux ie SLES11SP1 and RHEL6.1 when running in combination with the latest drivers.
Internal Use Only
****Website Administrator Field Only****
****This information will not be published to the internet or intranet ****
Wording Provider - Geoff Lane
Website Defect Number - Geoff to confirm
Related to VRM's - Geoff to confirm
Review Date - 11/07/2008
Reviewed By - Geoff Lane, Chris Canto
Obsoleted by - Huw Francis
04/11/2010: GL Review Comments: REfences for V7000 and removed made the recovery generic for all SLES and RHEL versions rather than SLES9 and RHEL4
07/11/2010: EH: Alt refs added for SVC and Storwize 6.1. No Terminology updates required. Future pub date set to 08/11/2010.
07/06/2011: Moved forward to 6.2 - no terminology updates required - set future publishing date to 10/06/2011.
26/10/2011: Moved forward to 6.3 - set future publishing date to 18/11/2011.
10/11/2011: Updated Product list to include: SVC, Storwize V7000 and Storwize V7000 Unified.
DO NOT PUBLISH UNTIL GEOFF HAS UPDATED THIS FLASH
17/11/2011: Geoff updated. Ready for publishing.
17 June 2018