So you are also seeing this with 12.04.5? If that is the case it would be good to see if this issue is already fixed in the mainline kernel, which can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc2+cod1-wily/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1499622 Title: multipath keep failure after the interface is recovered Status in linux package in Ubuntu: Confirmed Bug description: We encounter a multipath issue on Ubuntu 14.04.2 LTS. dm state (i.e. failed) cannot be recovered automatically when the interface is back. But path check state (i.e. faulty) can. In order to describe the issue clearly, the attached slides shows the detail of reproduce steps. Meanwhile, attachment also includes the output from multipath tool. P.S. We are writing the IO to the volume through dm device during the interface enable/disable. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1499622/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
