Gluster users - Feb 2024 - How to replace a brick in a dispersed volume?

Hi,


I setup a 4+2 dispersed volume and it worked well so far.


 ??? gluster volume info
 ??? Volume Name: disperseVol
 ??? Type: Disperse
 ??? Volume ID: 35386b55-829c-4bac-bdba-609427269cf4
 ??? Status: Started
 ??? Snapshot Count: 0
 ??? Number of Bricks: 1 x (4 + 2) = 6
 ??? Transport-type: tcp
 ??? Bricks:
 ??? Brick1: 192.168.129.227:/mnt/gluster/disperseVol
 ??? Brick2: 192.168.130.4:/mnt/gluster/disperseVol
 ??? Brick3: 192.168.130.2:/mnt/gluster/disperseVol
 ??? Brick4: 192.168.129.2:/mnt/gluster/disperseVol
 ??? Brick5: 192.168.130.3:/mnt/gluster/disperseVol
 ??? Brick6: 192.168.129.218:/mnt/gluster/disperseVol
 ??? Options Reconfigured:
 ??? nfs.disable: on
 ??? transport.address-family: inet
 ??? storage.fips-mode-rchecksum: on
 ??? features.bitrot: on
 ??? features.scrub: Active

Now two host (.130.4, .130.3) burned down an the two bricks are gone.
The volume works still well, but I'm unable to replace the vanished
bricks to get back redundancy. I followed the gluster docs, added a new
peer and tried:

 ??? gluster volume replace-brick disperseVol \
 ?????? 192.168.130.4:/mnt/gluster/disperseVol \
 ?????? 192.168.130.6:/glusterPool/disperseVol commit force

but this gives an error

 ??? volume replace-brick: failed: Pre Validation failed on 192.168.130.6. \

 ????? brick: 192.168.130.4:/mnt/gluster/disperseVol does not exist in
volume: disperseVol

so I got no idea how to continue (except: shred it all, start from
scratch and restore backup, but there must be a better solution).


Thanks in advance