[Gluster-users] [ovirt-users] Re: Single instance scaleup.

[Leo David]

Hi,
Any suggestions ?
Thank you very much !

Leo

On Sun, May 26, 2019 at 4:38 PM Strahil Nikolov <hunter86_bg at yahoo.com>
wrote:

> Yeah,
> it seems different from the docs.
> I'm adding the gluster users list ,as they are more experienced into that.
>
> @Gluster-users,
>
> can you provide some hint how to add aditional replicas to the below
> volumes , so they become 'replica 2 arbiter 1' or 'replica 3' type volumes ?
>
>
> Best Regards,
> Strahil Nikolov
>
> В неделя, 26 май 2019 г., 15:16:18 ч. Гринуич+3, Leo David <
> leoalex at gmail.com> написа:
>
>
> Thank you Strahil,
> The engine and ssd-samsung are distributed...
> So these are the ones that I need to have replicated accross new nodes.
> I am not very sure about the procedure to accomplish this.
> Thanks,
>
> Leo
>
> On Sun, May 26, 2019, 13:04 Strahil <hunter86_bg at yahoo.com> wrote:
>
> Hi Leo,
> As you do not have a distributed volume , you can easily switch to replica
> 2 arbiter 1 or replica 3 volumes.
>
> You can use the following for adding the bricks:
>
>
> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Administration_Guide/Expanding_Volumes.html
>
> Best Regards,
> Strahil Nikoliv
> On May 26, 2019 10:54, Leo David <leoalex at gmail.com> wrote:
>
> Hi Stahil,
> Thank you so much for yout input !
>
>  gluster volume info
>
>
> Volume Name: engine
> Type: Distribute
> Volume ID: d7449fc2-cc35-4f80-a776-68e4a3dbd7e1
> Status: Started
> Snapshot Count: 0
> Number of Bricks: 1
> Transport-type: tcp
> Bricks:
> Brick1: 192.168.80.191:/gluster_bricks/engine/engine
> Options Reconfigured:
> nfs.disable: on
> transport.address-family: inet
> storage.owner-uid: 36
> storage.owner-gid: 36
> features.shard: on
> performance.low-prio-threads: 32
> performance.strict-o-direct: off
> network.remote-dio: off
> network.ping-timeout: 30
> user.cifs: off
> performance.quick-read: off
> performance.read-ahead: off
> performance.io-cache: off
> cluster.eager-lock: enable
> Volume Name: ssd-samsung
> Type: Distribute
> Volume ID: 76576cc6-220b-4651-952d-99846178a19e
> Status: Started
> Snapshot Count: 0
> Number of Bricks: 1
> Transport-type: tcp
> Bricks:
> Brick1: 192.168.80.191:/gluster_bricks/sdc/data
> Options Reconfigured:
> cluster.eager-lock: enable
> performance.io-cache: off
> performance.read-ahead: off
> performance.quick-read: off
> user.cifs: off
> network.ping-timeout: 30
> network.remote-dio: off
> performance.strict-o-direct: on
> performance.low-prio-threads: 32
> features.shard: on
> storage.owner-gid: 36
> storage.owner-uid: 36
> transport.address-family: inet
> nfs.disable: on
>
> The other two hosts will be 192.168.80.192/193  - this is gluster
> dedicated network over 10GB sfp+ switch.
> - host 2 wil have identical harware configuration with host 1 ( each disk
> is actually a raid0 array )
> - host 3 has:
>    -  1 ssd for OS
>    -  1 ssd - for adding to engine volume in a full replica 3
>    -  2 ssd's in a raid 1 array to be added as arbiter for the data volume
> ( ssd-samsung )
> So the plan is to have "engine"  scaled in a full replica 3,  and
> "ssd-samsung" scalled in a replica 3 arbitrated.
>
>
>
>
> On Sun, May 26, 2019 at 10:34 AM Strahil <hunter86_bg at yahoo.com> wrote:
>
> Hi Leo,
>
> Gluster is quite smart, but in order to provide any hints , can you
> provide output of 'gluster volume info <glustervol>'.
> If you have 2 more systems , keep in mind that it is best to mirror the
> storage on the second replica (2 disks on 1 machine -> 2 disks on the new
> machine), while for the arbiter this is not neccessary.
>
> What is your network and NICs ? Based on my experience , I can recommend
> at least 10 gbit/s  interfase(s).
>
> Best Regards,
> Strahil Nikolov
> On May 26, 2019 07:52, Leo David <leoalex at gmail.com> wrote:
>
> Hello Everyone,
> Can someone help me to clarify this ?
> I have a single-node 4.2.8 installation ( only two gluster storage domains
> - distributed  single drive volumes ). Now I just got two identintical
> servers and I would like to go for a 3 nodes bundle.
> Is it possible ( after joining the new nodes to the cluster ) to expand
> the existing volumes across the new nodes and change them to replica 3
> arbitrated ?
> If so, could you share with me what would it be the procedure ?
> Thank you very much !
>
> Leo
>
>
>
> --
> Best regards, Leo David
>
>

-- 
Best regards, Leo David
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