[Openstack] Recover data after VM crash
Ben
ben.div at gmail.com
Fri Oct 12 16:10:50 UTC 2012
Hi the list,
I have an instance in inconsistent state, and I would like to recover
the data stored in.
The story : I had a very high load average on the instance, so I decided
to reboot it with nova reboot command. The instance didn't went up (may
be root fs corruption ?), so I tried to rescue it with nova rescue command.
Now when I try to start the instance, I see in the compute log an
exception message telling that kernel.rescue file is not present. Same
thing if I try to unrescue (playing with state in db to allow the command).
So I'm stuck with a probably broken image, in a broken rescue state.
Questions :
- how can I rescue or unrescue the instance ?
- how can I recover the data (by mounting instance file to browse its
content ?)
Thanks
Ben
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