[linux-lvm] How do I properly backup and restore / on LVM2

Alan Pek alan.pek at db.com
Tue Apr 13 11:47:57 UTC 2010


Hi Folks,

Thanks.

singmrecfp1001:~ # lvcreate -L 2.5g -s -n rsnap /dev/rootvg/rootlv

  Logical volume "rsnap" created

But why the above work ?

And

singmrecfp1001:~ # mount /dev/mapper/rootvg-rsnap /mnt/rootlv/snap
singmrecfp1001:~ # df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/rootvg-rootlv
                       2621356   1637876    983480  63% /
tmpfs                  4000100         4   4000096   1% /dev/shm
/dev/md0                102712     40056     62656  39% /boot
/dev/mapper/rootvg-rsnap
                       2621356   1636964    984392  63% /mnt/rootlv/snap


However I don't see any lv with lvs

singmrecfp1001:~ # lvs
  LV     VG     Attr   LSize Origin Snap%  Move Log Copy%
  rootlv rootvg owi-ao 2.50G
  swaplv rootvg -wi-ao 1.00G

I will now mount a NFS filesystem and do a tar of this snapshot.

Is there anything I have to take care if now, my rootdisk is gone.

How do I restore from this snapshot , any specific settings like creating 
bootable block ?

The root filesystem is reiserfs and it has software mirrored.

Regards
Alan

---

This e-mail may contain confidential and/or privileged information. If you 
are not the intended recipient (or have received this e-mail in error) 
please notify the sender immediately and destroy this e-mail. Any 
unauthorized copying, disclosure or distribution of the material in this 
e-mail is strictly forbidden.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-lvm/attachments/20100413/89baf850/attachment.htm>


More information about the linux-lvm mailing list