Hi again,
I try kpartx and it's so cool, but I can't make snapshots of
/dev/vg00/lv00p1 ... so I can't solve the problem of making backup
without stopping the Virtual Machine.
Any advice?
Regards,
Marc
Bryn M. Reeves wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Marc Patino Gómez wrote:
Hi list,
I am searching a way to backup a "special" logical volume. This special
lv doesn't contains a filesystem, it contains a hole image disk of a
running server (MBR,Partition Table, Partitions and filesystems), in
fact it is a VBD (Virtual Block Device) of a HVM Xen Guest.
I want to be able to make the backup without shutting down the Virtual
Machine, but the traditional way :
- make a snapshot
- mount snapshot
- backup the snapshots
- umount snapshot
- remove snapshot
is not suitable for this kind of logical volumes.
I search some information about it, but the only clue is:
fdisk -l -u /dev/vg00/lv00
Hi Marc,
You can use the kpartx tool for this. It was originally written as part
of multipath-tools and it allows you to map the partitions on a
device-mapper device like an LVM2 logical volume.
E.g. you would run:
# kpartx -a /dev/vg00/lv00
And that will scan lv00 for partitions and create new devices in
/dev/mapper named lv00p1, lv00p2, ... that you can then use to access
the content of the partitions.
When you're done, run:
# kpartx -d /dev/vg00/lv00
To remove the temporary kpartx maps.
Regards,
Bryn.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
iD8DBQFHA1w96YSQoMYUY94RAhW3AKC9n8+5tzN/FW38+qIUj0a82vvAMQCg0qYb
bAWnKGAuyZnMoZZz089I2qg=
=+xgZ
-----END PGP SIGNATURE-----
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
