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) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20150921/e98985c4/attachment.html>
On 09/22/2015 02:07 AM, Gluster Admin 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?This is not possible in Gluster. A brick (partition) is considered to be the smallest unit of the break down of a volume. Thanks, Atin> > 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) > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users >
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 consuming. 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) > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20150922/b6501f12/attachment.html>