OpenVZ on LVM2?

W

welbers

New Member
Dec 31, 2011
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Hi,

is it possible to have OpenVZ containers on LVM2 volumes or to have each container in its own volume? - I couldn't find any possibility in the webfrontend to do it.

By hand it's possible.

Thx
Andreas
 
dietmar said:
How? AFAIK openvz does not support LVM devices.
Click to expand...

I don't mean lvm2 in an OpenVZ, I mean OpenVZ in an lvm2 volume!

That's easy doing:
* create an lvm for every OpenVZ container as usual with "lvcreate ..."
* format it i.e. "mkfs.ext4 <lvm-volume>"
* mount each formated volume in /var/lib/vz/private/<id>
That's all.
 
welbers;45812I said:
* mount each formated volume in /var/lib/vz/private/<id>
That's all.
Click to expand...

Whils that looks easy, it breaks 'vzctl' - simple 'vzctl mount' command does not work in such configuration?
 
Hi there,

proxmox 1.x was able to create a LVM2 volume during provisioning an OpenVZ Container to use this volume as the disk drive for the CT, in proxmox 2.0 I didn't find this possibility. I think welders means the same.
So, is it not supported in proxmox 2.0 to create LVMs for CTs? I only found this way for KVMs.
 
dietmar said:
Whils that looks easy, it breaks 'vzctl' - simple 'vzctl mount' command does not work in such configuration?
Click to expand...

Hm, I'm very new to openvz but I can't see this problem.

I did some tests for you with my vm101 created as described above.
I have the directory /vz-containers where I mount each lvm2 volumen which contains an openvz container.
For the tests I mounted container 101 via soft-link with "ln -s /vz-containers/101 /var/lib/vz/private/101" and I did also a bind mount with
"mount --bind /vz-containers/101 /var/lib/vz/private/101".

All tests with vzctl were successful. I tried "start/stop/mount/umount/status.." and couldn't find a problem.
Example:
root@server:/vz# vzctl status 101
CTID 101 exist mounted running
 
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