[linux-lvm] Snapshot of a Snapshot
kwagner at zetex.com
Fri Feb 29 11:27:32 UTC 2008
I was just wondering if there was a plan to add 'Snapshot of a Snapshot'
functionality to LVM2? If so, is there any timescale on it?
This would be a very useful feature, especially in a Xen environment.
Also, is there an easy way to backup and restore a snapshot? My scenario
is that I am running several Xen DomU's (Virtual machines, 4 of them to
be precise) from snapshots of a base image. However, if one dies (eg the
snapshot overflows, something which should not happen again but just in
case...) and I recreate the snapshot and restore the backup image I
took, it fills the snapshot up. It doesn't seem to check if the data
being written to the snapshot is the same as on the origin volume, just
adds the data to the snapshot anyway. Is there any way round this (apart
from the very slow script I currently have which checks each sector
Cheers in advance
Zetex Semiconductors - Solutions for an analog world.
E-MAILS are susceptible to interference. You should not assume that
the contents originated from the sender or the Zetex Group or that they
have been accurately reproduced from their original form.
Zetex accepts no responsibility for information, errors or omissions in
this e-mail nor for its use or misuse nor for any act committed or
omitted in connection with this communication.
If in doubt, please verify the authenticity with the sender.
More information about the linux-lvm