Re: [Gluster-users] Adding bricks to an existing installation.
Hey Ludwig, Yes this configuration is fine. You can add them and do the rebalance after that. FYI: Replica 2 volumes are prone to split-brains. Replica 3 or arbiter will highly reduce the possibility of ending up in split-brains. If possible consider using one of those configurations. For more information go through [1]. [1] https://gluster.readthedocs.io/en/latest/Administrator% 20Guide/Split%20brain%20and%20ways%20to%20deal%20with%20it/ Thanks & Regards, Karthik On Tue, Sep 26, 2017 at 12:48 AM, Ludwig Gamachewrote: > Sharding is not enabled. > > Ludwig > > On Mon, Sep 25, 2017 at 2:34 PM, wrote: > >> Do you have sharding enabled ? If yes, don't do it. >> If no I'll let someone who knows better answer you :) >> >> On Mon, Sep 25, 2017 at 02:27:13PM -0400, Ludwig Gamache wrote: >> > All, >> > >> > We currently have a Gluster installation which is made of 2 servers. >> Each >> > server has 10 drives on ZFS. And I have a gluster mirror between these >> 2. >> > >> > The current config looks like: >> > SERVER A-BRICK 1 replicated to SERVER B-BRICK 1 >> > >> > I now need to add more space and a third server. Before I do the >> changes, I >> > want to know if this is a supported config. By adding a third server, I >> > simply want to distribute the load. I don't want to add extra >> redundancy. >> > >> > In the end, I want to have the following done: >> > Add a peer to the cluster >> > Add 2 bricks to the cluster (one on server A and one on SERVER C) to the >> > existing volume >> > Add 2 bricks to the cluster (one on server B and one on SERVER C) to the >> > existing volume >> > After that, I need to rebalance all the data between the bricks... >> > >> > Is this config supported? Is there something I should be careful before >> I >> > do this? SHould I do a rebalancing before I add the 3 set of disks? >> > >> > Regards, >> > >> > >> > Ludwig >> >> > ___ >> > Gluster-users mailing list >> > Gluster-users@gluster.org >> > http://lists.gluster.org/mailman/listinfo/gluster-users >> >> >> ___ >> Gluster-users mailing list >> Gluster-users@gluster.org >> http://lists.gluster.org/mailman/listinfo/gluster-users >> > > > > -- > Ludwig Gamache > IT Director - Element AI > 4200 St-Laurent, suite 1200 > 514-704-0564 > > ___ > Gluster-users mailing list > Gluster-users@gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users > ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users
Re: [Gluster-users] Adding bricks to an existing installation.
Sharding is not enabled. Ludwig On Mon, Sep 25, 2017 at 2:34 PM,wrote: > Do you have sharding enabled ? If yes, don't do it. > If no I'll let someone who knows better answer you :) > > On Mon, Sep 25, 2017 at 02:27:13PM -0400, Ludwig Gamache wrote: > > All, > > > > We currently have a Gluster installation which is made of 2 servers. Each > > server has 10 drives on ZFS. And I have a gluster mirror between these 2. > > > > The current config looks like: > > SERVER A-BRICK 1 replicated to SERVER B-BRICK 1 > > > > I now need to add more space and a third server. Before I do the > changes, I > > want to know if this is a supported config. By adding a third server, I > > simply want to distribute the load. I don't want to add extra redundancy. > > > > In the end, I want to have the following done: > > Add a peer to the cluster > > Add 2 bricks to the cluster (one on server A and one on SERVER C) to the > > existing volume > > Add 2 bricks to the cluster (one on server B and one on SERVER C) to the > > existing volume > > After that, I need to rebalance all the data between the bricks... > > > > Is this config supported? Is there something I should be careful before I > > do this? SHould I do a rebalancing before I add the 3 set of disks? > > > > Regards, > > > > > > Ludwig > > > ___ > > Gluster-users mailing list > > Gluster-users@gluster.org > > http://lists.gluster.org/mailman/listinfo/gluster-users > > > ___ > Gluster-users mailing list > Gluster-users@gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users > -- Ludwig Gamache IT Director - Element AI 4200 St-Laurent, suite 1200 514-704-0564 ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users
Re: [Gluster-users] Adding bricks to an existing installation.
Do you have sharding enabled ? If yes, don't do it. If no I'll let someone who knows better answer you :) On Mon, Sep 25, 2017 at 02:27:13PM -0400, Ludwig Gamache wrote: > All, > > We currently have a Gluster installation which is made of 2 servers. Each > server has 10 drives on ZFS. And I have a gluster mirror between these 2. > > The current config looks like: > SERVER A-BRICK 1 replicated to SERVER B-BRICK 1 > > I now need to add more space and a third server. Before I do the changes, I > want to know if this is a supported config. By adding a third server, I > simply want to distribute the load. I don't want to add extra redundancy. > > In the end, I want to have the following done: > Add a peer to the cluster > Add 2 bricks to the cluster (one on server A and one on SERVER C) to the > existing volume > Add 2 bricks to the cluster (one on server B and one on SERVER C) to the > existing volume > After that, I need to rebalance all the data between the bricks... > > Is this config supported? Is there something I should be careful before I > do this? SHould I do a rebalancing before I add the 3 set of disks? > > Regards, > > > Ludwig > ___ > Gluster-users mailing list > Gluster-users@gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users signature.asc Description: Digital signature ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users
[Gluster-users] Adding bricks to an existing installation.
All, We currently have a Gluster installation which is made of 2 servers. Each server has 10 drives on ZFS. And I have a gluster mirror between these 2. The current config looks like: SERVER A-BRICK 1 replicated to SERVER B-BRICK 1 I now need to add more space and a third server. Before I do the changes, I want to know if this is a supported config. By adding a third server, I simply want to distribute the load. I don't want to add extra redundancy. In the end, I want to have the following done: Add a peer to the cluster Add 2 bricks to the cluster (one on server A and one on SERVER C) to the existing volume Add 2 bricks to the cluster (one on server B and one on SERVER C) to the existing volume After that, I need to rebalance all the data between the bricks... Is this config supported? Is there something I should be careful before I do this? SHould I do a rebalancing before I add the 3 set of disks? Regards, Ludwig ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users