To assist in further debug, stop the multipath daemon, then run it in the foreground with max verbosity, while running it under strace. Log strace to file and the foreground stdout and stderr to another file. Post the results here.
Also include your multipath.conf, lvm.conf, output of dmsetup table, and 'echo show config | multipathd -k'. While the system is in the failure mode, in running ps aux do you see a series of kpartx processes in uninterruptable state? I presume you've configured your lvm.conf blacklist correctly? Thanks. https://help.ubuntu.com/12.04/serverguide/multipath-devices.html #multipath-devices-in-logical-volumes ** Changed in: multipath-tools (Ubuntu) Assignee: (unassigned) => Peter Petrakis (peter-petrakis) ** Changed in: multipath-tools (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/1020436 Title: Cannot read superblock after FC multipath failover To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1020436/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
