Recover from stuck live migration

Sep 20, 2012
I was in the process of migrating all VM's from a server running pve 7.1-11 to 7.1-12 so I could update it. It migrated several VM's and then stopped and the server turned to a grey question mark. It has been about a half hour and it doesn't appear like the migration is still progressing. All of the VM's on the server are running but my question is what should I do to recover from this? I am hoping not to have to reboot all the VM's or take them offline.

Could you provide the complete task log as well as the journal/syslog for that time (shortly before starting the migration until now).
The problem was an orphaned multi-path device that likely occurred during volume deactivation. I've manually cleaned up the device paths, and the system is now operating normally.
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