[Gluster-users] Replica 3 - how to replace failed node (peer)

Strahil
Thu, 11 Apr 2019 04:44:57 -0000

Hi Karthnik,
I used only once the brick replace function when I wanted to change my Arbiter
(v3.12.15 in oVirt 4.2.7)  and it was a complete disaster.
Most probably I should have stopped the source arbiter before doing that, but
the docs didn't mention it.

Thus I always use reset-brick, as it never let me down.

Best Regards,
Strahil NikolovOn Apr 11, 2019 07:34, Karthik Subrahmanya <ksubrahm at
redhat.com> wrote:
>
> Hi Strahil,
>
> Thank you for sharing your experience with reset-brick option.
> Since he is using the gluster version 3.7.6, we do not have the reset-brick
[1] option implemented there. It is introduced in 3.9.0. He has to go with
replace-brick with the force option if he wants to use the same path & name
for the new brick.?
> Yes, it is recommended to have the new brick to be of the same size as that
of the other bricks.
>
>
[1]?https://docs.gluster.org/en/latest/release-notes/3.9.0/#introducing-reset-brick-command
>
> Regards,
> Karthik
>
> On Wed, Apr 10, 2019 at 10:31 PM Strahil <hunter86_bg at yahoo.com>
wrote:
>>
>> I have used reset-brick - but I have just changed the brick layout.
>> You may give it a try, but I guess you need your new brick to have same
amount of space (or more).
>>
>> Maybe someone more experienced should share a more sound solution.
>>
>> Best Regards,
>> Strahil NikolovOn Apr 10, 2019 12:42, Martin Toth <snowmailer at
gmail.com> wrote:
>> >
>> > Hi all,
>> >
>> > I am running replica 3 gluster with 3 bricks. One of my servers
failed - all disks are showing errors and raid is in fault state.
>> >
>> > Type: Replicate
>> > Volume ID: 41d5c283-3a74-4af8-a55d-924447bfa59a
>> > Status: Started
>> > Number of Bricks: 1 x 3 = 3
>> > Transport-type: tcp
>> > Bricks:
>> > Brick1: node1.san:/tank/gluster/gv0imagestore/brick1
>> > Brick2: node2.san:/tank/gluster/gv0imagestore/brick1 <? this
brick is down
>> > Brick3: node3.san:/tank/gluster/gv0imagestore/brick1
>> >
>> > So one of my bricks is totally failed (node2). It went down and
all data are lost (failed raid on node2). Now I am running only two bricks on 2
servers out from 3.
>> > This is really critical problem for us, we can lost all data. I
want to add new disks to node2, create new raid array on them and try to replace
failed brick on this node.
>> >
>> > What is the procedure of replacing Brick2 on node2, can someone
advice? I can?t find anything relevant in documentation.
>> >
>> > Thanks in advance,
>> > Martin
>> > _______________________________________________
>> > Gluster-users mailing list
>> > Gluster-users at gluster.org
>> > https://lists.gluster.org/mailman/listinfo/gluster-users
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> https://lists.gluster.org/mailman/listinfo/gluster-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.gluster.org/pipermail/gluster-users/attachments/20190411/ede7f0b7/attachment.html>