[Gluster-users] Replace replicate in single brick

[Ravishankar N]

On 01/09/2017 09:29 PM, Andrus, Brian Contractor wrote:
>
> All,
>
> We have a small cluster with a single volume and a single replicated 
> brick:
>
> Volume Name: volume1
>
> Type: Replicate
>
> Number of Bricks: 1 x 2 = 2
>
> Bricks:
>
> Brick1: node01:/export/sdb1/brick
>
> Brick2: node02:/export/sdb1/brick
>
> Now the disk on node01 is going bad and needs replaced, but I am 
> uncertain if there is a safe way to do this with gluster. There are 
> not enough connections in the system to hook up a new disk and then 
> add it. I have to physically replace the disk with the new one.
>
If you are using glusterfs 3.9 and want to give the replaced brick the 
same name as the old one, there is the reset-brick command. The commit 
message in http://review.gluster.org/#/c/12250/ gives you some 
information on the steps to run.
If you are okay with using a different name for the brick, then there is 
`gluster volume replace-brick <volname> <hostname:old brick> 
<hostname:new brick> commit force`. I think this command works from 
glusterfs 3.7.10 onward.
-Ravi

> Is there a way to do that?
>
> Brian Andrus
>
> ITACS/Research Computing
>
> Naval Postgraduate School
>
> Monterey, California
>
> voice: 831-656-6238
>
>
>
> _______________________________________________
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> Gluster-users at gluster.org
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