Hi Hans,

Usually arbiter bricks take a few MB. Are you sure you can’t spare a GB for all of them ?

In case you have no other option, you will have to convert your volume in replica 2 and only then you can add just the data bricks.

Something like this (based on my memory, so check the help and test properly on a test volume):

gluster volume remove-brick data replica 2 gl3.lan:/gluster_bricks/sdx/sdx  gl1.lan:/gluster_bricks/sdx/sdx gl2.lan:/gluster_bricks/sdx/sdx commit force

gluster volume add-brick data <brick pair 1> <brick pair 2>

Best Regards,
Strahil Nikolov 

On Sunday, June 11, 2023, 4:34 PM, Hans Kuhl <h.kuhl@poesamo.com> wrote:

Hello all,
how can I expand a arbitrated-distributed-replicated volume without adding additional arbiter bricks?
my current gluster config is:

Volume Name: data
Type: Distributed-Replicate
Volume ID: dcf75cf7-1937-4ce9-a7d0-46a56a3be4b4
Status: Started
Snapshot Count: 0
Number of Bricks: 3 x (2 + 1) = 9
Transport-type: tcp
Bricks:
Brick1: gl1.lan:/gluster_bricks/sdc/sdc
Brick2: gl2.lan:/gluster_bricks/sdc/sdc
Brick3: gl3.lan:/gluster_bricks/sdx/sdx (arbiter)
Brick4: gl2.lan:/gluster_bricks/sdd/sdd
Brick5: gl3.lan:/gluster_bricks/sdc/sdc
Brick6: gl1.lan:/gluster_bricks/sdx/sdx (arbiter)
Brick7: gl3.lan:/gluster_bricks/sdd/sdd
Brick8: gl1.lan:/gluster_bricks/sdd/sdd
Brick9: gl2.lan:/gluster_bricks/sdx/sdx (arbiter)
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