emc powerpath luns enter auto standby mode
Issue
Luns intermittently enter auto standby mode (asb:iopf) and have to be forced back into active mode
Oct 18 02:04:01 hostname kernel: Info:Mpx:Path Bus 1 Tgt 0 Lun 16 is set to Auto standby due to Iopf.
Oct 18 02:04:02 hostname kernel: Info:Mpx:Path Bus 2 Tgt 0 Lun 21 is set to Auto standby due to Iopf.
Oct 18 02:04:13 hostname kernel: Info:Mpx:Path Bus 2 Tgt 0 Lun 8 is set to Auto standby due to Iopf.
Oct 18 03:39:56 hostname kernel: Info:Mpx:Path Bus 2 Tgt 0 Lun 18 is set to Auto standby due to Iopf.
Oct 18 04:21:11 hostname kernel: Info:Mpx:Path Bus 1 Tgt 0 Lun 3 is set to Auto standby due to Iopf.
Oct 18 10:34:10 hostname kernel: Info:Mpx:Path Bus 2 Tgt 0 Lun 7 is set to Auto standby due to Iopf.
Environment
- Red Hat Enterprise Linux 5
- EMC PowerPath
- Cisco Nexus 5548 switch
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.
