Mark Connor
2017-Dec-28 18:26 UTC
[Gluster-users] Adding larger bricks to an existing volume
I have a 10x2 distributed replica volume running gluster3.8. Each of my bricks is about 60TB in size. ( 6TB drives Raid 6 10+2 ) I am running of storage so I intend on adding servers with larger 8Tb drives. My new bricks will be 80TB in size. I will make sure the replica to the larger brick will match in size. Will gluster place more files on the larger bricks? Or will I have wasted space? In other words will the 80TB new bricks ever exceed 60TB? -Mark -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20171228/43b60922/attachment.html>
Nithya Balachandran
2017-Dec-29 03:52 UTC
[Gluster-users] Adding larger bricks to an existing volume
Hi Mark, On 28 December 2017 at 23:56, Mark Connor <markconnor64 at gmail.com> wrote:> I have a 10x2 distributed replica volume running gluster3.8. > Each of my bricks is about 60TB in size. ( 6TB drives Raid 6 10+2 ) > > I am running of storage so I intend on adding servers with larger 8Tb > drives. > My new bricks will be 80TB in size. I will make sure the replica to the > larger brick will match in size. > > Will gluster place more files on the larger bricks? Or will I have wasted > space? >Yes, it will. Gluster will use the sizes of the bricks when calculating the layout distribution if cluster.weighted-rebalance is enabled. There was a bug [1] which was fixed in 3.8.5 so anything newer than that should work. On a different note, I am looking into improving Gluster documentation so where would you like to see this information in the guides? Regards, Nithya [1] https://bugzilla.redhat.com/show_bug.cgi?id=1374135> In other words will the 80TB new bricks ever exceed 60TB? > > -Mark > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20171229/5f39122b/attachment.html>