I don't have time to write up a long answer right now (work's killing me today) but if you search for lvm on the IRC log, we had a bit of a discussion about that a few days (or was it a week... they're all blending together) ago. On 01/10/2013 03:06 PM, Gaurav P wrote: > *bump* > > > On Mon, Jan 7, 2013 at 8:13 PM, Gaurav P > <gaurav.lists+gluster at gmail.com > <mailto:gaurav.lists+gluster at gmail.com>> wrote: > > Hi, > > I've been reading up on GlusterFS and I'm looking for best > practices around using multiple disks as bricks in servers that > will be part of a replicated volume. > > Say I start with a single disk each in two servers (/dev/sda1 > mounted at /a) > > gluster volume create test-volume replica 2 transport tcp server1:/a server2:/a > > > Then I add a second disk in each server (/dev/sdb1 mounted at /b) > > gluster volume add-brick test-volume replica 2 transport tcp server1:/b server2:/b > > > With this (after rebalancing), am I correct in understanding that > I will have a distributed replicated volume with GlusterFS > providing the equivalent of RAID1+0 for data on my volume. > > Now as I understand, I will be restricted to adding disks (bricks) > of the same size whenever I need to extend the volume. What are > the pros/cons of instead using LVM to provide a single LV on each > server and extending the LV and filesystem each time I add > additional storage? The other benefit to LVM being the ability to > take snapshots. The one downside I foresee is that a concatenated > LV will not use the second PV (disk) till the first PV is full, > though I could perhaps stripe? > > More questions to follow, but I'm trying to think through this > before I get started with my first deployment. > > TIA > Gaurav > > > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://supercolony.gluster.org/mailman/listinfo/gluster-users -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20130110/e1b6c7ef/attachment.html>
