SUSE Linux LVM and EVA3000 snapshots

[Paul Debleecker]

Hi,

I have difficulties to use eva3000 snapshots in combination with linux LVM.

I built up a server with an eva LUN and assigned it to a volume group in linux.I gave it a logical volume. This went al fine.

I create an EVA snapshot of my volume, while mounted in linux and no processes are locking any file. I cannot afford to bring the volume offline, since it will be a production volume wich need to be online continuously.

In EVA, I present the snapshot to my server. This all works fine.

But when I want to mount the snapshot volume while the original volume is mounted, linux LVM complains about a duplicate PV.

In the eva GUI, I see that the snapshot is presented with a new UUID, but my impression is that LVM again uses it's own uuids for volumes and volume groups and EVA snapshot does not see this.

Any idea how this can be solved? Probably with some kind of tool that can change the PV,LV offline?

Regards.

[Ivan Ferreira]

Please see if this link helps you:

https://www.data.com.py/foro/viewtopic.php?t=187

[Paul Debleecker]

Hi,

Thank you for your suggestion. I have seen a similar procedure on http://www.linuxplanet.com/linuxplanet/tutorials/6389/3/

I thought it could be done more easier than that.

I'll probably not use LVM for my system then. Without lvm, snapshots on EVA works just fine with linux.

Regards.