[Gluster-users] multiple volumes on same brick?

Alastair Neil ajneil.tech at gmail.com
Tue Sep 22 11:06:36 UTC 2015

you mean create multiple top level directories on a mounted files system
and use each directory as a brick in a different volume?

if the underlying block device is a thinly provisioned lvm2 volume and you
want to use snapshots you cannot do this, otherwise I don't think there is
a technical reason you can't other than the obvious that this is in general
not  a good idea as  use in one volume may impact the available storage for
a different volume and it will not be transparent how much each volume is

I have three servers each with 40Tb of disk in an external sas enclosure.
The storage is presented as a RAID 6 VD and I then make that a physical
volume and created a lvm2 Volume Group on top.  Individual bricks are thin
provisioned logical volumes.

On 21 September 2015 at 16:37, Gluster Admin <gluster at hepcat.org> wrote:

> Gluster users,
> We have a multiple node setup where each server has a single XFS brick
> (underlying storage is hardware battery backed raid6).  Are there any
> issues creating multiple gluster volumes using the same underlying bricks
> from a performance or management standpoint?
> or would it be better to setup many smaller bricks via RAID1 to support
> multiple volumes.
> Current setup:
> NODE:/brick1    (raid6 8 disk per brick)
> Smaller Brick setup:
> NODE:/brick1 /brick2 /brick3 /brick4  (raid1 2 disk per brick)
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