Error message in live migration

[vitor costa]

I seed this in live migration in a Cluster with DRBD:

/usr/bin/ssh -t -t -n -o BatchMode=yes 192.168.0.3 /usr/sbin/qmigrate --online 192.168.0.2 104
Oct 16 20:01:53 starting migration of VM 104 to host '192.168.0.2'
Oct 16 20:01:53 copying disk images
Oct 16 20:01:53 starting VM on remote host '192.168.0.2'
/dev/dm-5: read failed after 0 of 4096 at 0: Input/output error
/dev/dm-5: read failed after 0 of 4096 at 0: Input/output error
/dev/dm-5: read failed after 0 of 4096 at 0: Input/output error
/dev/dm-5: read failed after 0 of 4096 at 0: Input/output error
/dev/dm-5: read failed after 0 of 4096 at 0: Input/output error
/dev/dm-5: read failed after 0 of 4096 at 0: Input/output error
Oct 16 20:01:53 starting migration tunnel


Both nodes using kernel 2.6.18-2 .(Xeon 5540 and Xeon 3363)
The process finish ok and VM is tranfered and working.

I see the same error in another cluster

 

[udo]

Hi,
one of your defined storage aren't yet active/valid?!
you can look with dmsetup (info).

Udo

 

[vitor costa]

Thanks Udo. The problem is a vzdump snapshot in lvm. I drop it and all messages gone.