[Gluster-users] Add brick question.

[M S Vishwanath Bhat]

On 19 March 2015 at 14:59, 何亦军 <heyijun at greatwall.com.cn> wrote:

>  Hi Guys,
>
>
>
>      I have two servers in my pool , I plan add new server to that pool.
>
>      My volume info below:
>
>
>
>     Volume Name: vol01
>
> Type: Distributed-Replicate
>
> Volume ID: 0bcd8d7c-b48a-4408-b7b8-56d4b5f8a97c
>
> Status: Started
>
> Number of Bricks: 2 x 2 = 4
>
> Transport-type: tcp
>
> Bricks:
>
> Brick1: gwgfs01:/data/brick1/vol01
>
> Brick2: gwgfs02:/data/brick1/vol01
>
> Brick3: gwgfs01:/data/brick2/vol01
>
> Brick4: gwgfs02:/data/brick2/vol01
>
>
>
> I plan to form a combination:
>
>
>
> Brick1: gwgfs01:/data/brick1/vol01
>
> Brick2: gwgfs03:/data/brick2/vol01
>
> Brick3: gwgfs01:/data/brick2/vol01
>
> Brick4: gwgfs02:/data/brick2/vol01
>
> Brick5: gwgfs02:/data/brick1/vol01
>
> Brick6: gwgfs03:/data/brick1/vol01
>
>
>
> My processing steps：
>
> 1.       gluster peer probe gwgfs03
>
> 2.       gluster volume replace-brick vol01 gwgfs02:/data/brick1/vol01
> gwgfs03:/data/brick2/vol01 status
>
> 3.       After replace completed, do: gluster volume rebalance vol01 start
>


>
>
> And  finally  I try to add brick meet problem:
>
> [root at gwgfs03 vol01]# gluster volume add-brick vol01
> gwgfs02:/data/brick1/vol01  gwgfs03:/data/brick1/vol01
>
> volume add-brick: failed: /data/brick1/vol01 is already part of a volume
>


The brick directory will have some xattrs while being part of the volume.
So you will have to remove the xattrs from the directory before adding the
brick to the volume again. You can simply delete the directory and
re-create it again.


>
> [root at gwgfs03 vol01]# gluster volume remove-brick vol01
> gwgfs02:/data/brick1/vol01 start
>
> volume remove-brick start: failed: Remove brick incorrect brick count of 1
> for replica 2
>

Since you have replica 2 volume, you should add/remove at least 2 bricks at
a time. You can try the following (after you delete and re-create
gwgfs02:/data/brick1/vol01)

gluster volume add-brick vol01  gwgfs02:/data/brick1/vol01
gwgfs03:/data/brick1/vol01

HTH
MS


>
> Current , my volume info below:    What can I do now? Help?
>
>
>
> [root at gwgfs03 vol01]# gluster volume info
>
>
>
> Volume Name: vol01
>
> Type: Distributed-Replicate
>
> Volume ID: 0bcd8d7c-b48a-4408-b7b8-56d4b5f8a97c
>
> Status: Started
>
> Number of Bricks: 2 x 2 = 4
>
> Transport-type: tcp
>
> Bricks:
>
> Brick1: gwgfs01:/data/brick1/vol01
>
> Brick2: gwgfs03:/data/brick2/vol01
>
> Brick3: gwgfs01:/data/brick2/vol01
>
> Brick4: gwgfs02:/data/brick2/vol01
>
> Options Reconfigured:
>
> nfs.disable: on
>
> user.cifs: disable
>
> auth.allow: *
>
>
>
>
>
>
>
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>
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