Glad to hear you got this solved.
I’m curious, though. Why pause the guest domain before creating
a snapshot? This doesn’t make the snapshot any more consistent…
Thank you,
Nathan Eisenberg
Sr. Systems Administrator
Atlas Networks, LLC.
From:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Thiago
Camargo Martins Cordeiro
Sent: Tuesday, September 16, 2008 3:15 PM
To: xen-users
Subject: [Xen-users] Howto made LVM2 snapshots of my whole HVM domU
disk, not per partition.
Hi!
In my dom0, I have two logical volumes for my virtualized Windows 2003
Servers, each of with it's your own partitions, let's see:
I have this lvm volume "/dev/mapper/HyperVG01-windows01-disk1"
is "phy:/dev/mapper/HyperVG01-windows01-disk1,hda,w" and
"/dev/mapper/HyperVG01-windows01-disk2" is
"phy:/dev/mapper/HyperVG01-windows01-disk2,hdb,w" in my
/etc/xen/windows01-dm.
So I have Windows working in a new HVM stubdomain. But how can I made a
entire backup of my disks, including my Windows boot loader and move my Windows
to another Hypervisor?
I have tried:
1) xm shutdown windows01;
2) dd if=/dev/mapper/HyperVG01-windows01-disk1
of=/var/backups/windows01-disk1.dd
2) dd if=/dev/mapper/HyperVG01-windows01-disk2
of=/var/backups/windows01-disk2.dd
3) move windows01-disk1.dd and windows01-disk2 to another Hypervisor and do
inverse dd;
4) xm create windows01-stubdom on the new Hypervisor;
This sometimes works, sometimes not!
Every time I do this, my Windows boot's ok but my hdb (windows01-disk2)
always came corrupted... I don't know why one volume wokrs and other don't...
I have the same size for HyperVG01-windows01-diskX on both dom0s...
I do NOT want to use kpartx or ntfs-3g from my dom0 to read NTFS from
Linux. I want a backup of whole disk.
Can I do this with snapshots:
1) "xm pause windows01" or "xm shutdown windows01";
2) lvcreate -s windows01-disk1-snapshot /dev/mapper/HyperVG01-windows01-disk1
3) "xm unpause windows01" or "xm create
/etc/xen/windows01-stubdom";
4) Made a backup using my snapshot. ?
Next time when I restore from snapshot Windows will work without erros?
Can I take a "disk" snapshot of running HVM (With Windows guest)
while it's still alive?
Chears,
Thiago
