Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Please Ignore my last post.
I recreated my vg with the --clustered option, now I get:
Clustered snapshots are not yet supported.
I read some things like that, but was under the impression that this was
added in a more recent release.
I think I'll have to change my setup to:
Disk -> LVM -> DRBD -> OCFS2 (As in Kaloyan's post: DRBD on top op LVM,
not the other way around... :-))
Cheers,
Dirk
Op 5-4-2012 18:32, Dirk Bonenkamp - ProActive schreef:
> Hi,
>
> I've changed my setup, I know have:
>
> Disk -> DRBD -> LVM -> OCFS2
>
> I have clvm and lvm2 running (both clones) and things seem to work
> fine. (After some fiddeling, I'm new to LVM. I needed cLVM to get
> things working smooth).
>
> I can create a snapshot volume, but I fail to succesfully change the
> UUID / volume label:
>
> root at scan1:~# lvcreate -s -L 50G -n SS /dev/r0/scans
> Logical volume "SS" created
> root at scan1:~# tunefs.ocfs2 --cloned-volume -L SS /dev/r0/SS
> Updating the UUID and label on cloned volume "/dev/r0/SS".
> DANGER: THIS WILL MODIFY THE UUID WITHOUT ACCESSING THE CLUSTER
> SOFTWARE. YOU MUST BE ABSOLUTELY SURE THAT NO OTHER NODE IS USING
> THIS FILESYSTEM BEFORE MODIFYING ITS UUID.
> Update the UUID and label? y
> tunefs.ocfs2: OCFS2 inode is not a directory while opening device
> "/dev/r0/SS"
>
> Anyone familiar with this setup / error message?
>
> Thank you in advance,
>
> Dirk
>
> Op 4-4-2012 14:16, Kaloyan Kovachev schreef:
>> If you are using DRBD on top of LVM you can make use of snapshots and
>> mount the snapshot with local locking. Here is an example from my backup
>> script:
>>
>> lvcreate -s -L 100G -n LVMsnapshot /dev/vg0/lv0
>> tunefs.ocfs2 -y -L LVMsnapshot --cloned-volume /dev/vg0/LVMsnapshot
>> mount -o ro,localflocks /dev/vg0/LVMsnapshot /mnt/LVMsnapshot/
>> rsync -a --delete /mnt/LVMsnapshot/ ${BACKUP_LOCATION}
>> umount /mnt/LVMsnapshot
>> lvremove -f /dev/vg0/LVMsnapshot
>>
>>
>
>
>
>
>
>
>
>
>
>
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