Создал lvm том /dev/vms/vg1 и смонтировал в /mnt/dump/ (fs ext4).
# lvdisplay
--- Logical volume ---
LV Name /dev/vms/vg1
VG Name vms
LV UUID oWEzdm-AeBo-ejtc-eJbo-5oJx-NGhn-u87Osh
LV Write Access read/write
LV Status available
# open 1
LV Size 20,00 GiB
Current LE 5120
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 254:1
vzdump --snapshot 101 --dumpdir /mnt/dump/
INFO: starting new backup job: vzdump --snapshot 101 --dumpdir /mnt/dump/
INFO: Starting Backup of VM 101 (openvz)
INFO: CTID 101 exist mounted running
INFO: status = CTID 101 exist mounted running
INFO: mode failure - unable to detect lvm volume group
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: bandwidth limit: 10240 KB/s
INFO: starting first sync /var/lib/vz/private/101/ to /mnt/dump/vzdump-openvz-101-2011_08_01-22_41_19.tmp
...
Но openvz не делает дамп в режиме snapshot
INFO: mode failure - unable to detect lvm volume group
, а замораживает виртуалку
INFO: trying 'suspend' mode instead
почему так может быть? может есть какие то ньюансы?