[Gluster-users] Replica 2 to replica 3

Valerio Luccio valerio.luccio at nyu.edu
Fri Apr 3 19:12:19 UTC 2020


I have a live gluster setup like this:

    Volume Name: MRIData
    Type: Distributed-Replicate
    Volume ID: e051ac20-ead1-4648-9ac6-a29b531515ca
    Status: Started
    Snapshot Count: 0
    Number of Bricks: 6 x 2 = 12
    Transport-type: tcp
    Brick1: hydra1:/gluster1/data
    Brick2: hydra1:/gluster2/data
    Brick3: hydra1:/gluster3/data
    Brick4: hydra2:/gluster1/data
    Brick5: hydra2:/gluster2/data
    Brick6: hydra2:/gluster3/data
    Brick7: hydra3:/gluster1/data
    Brick8: hydra3:/gluster2/data
    Brick9: hydra3:/gluster3/data
    Brick10: hydra4:/gluster1/data
    Brick11: hydra4:/gluster2/data
    Brick12: hydra4:/gluster3/data
    Options Reconfigured:
    transport.address-family: inet
    nfs.disable: on
    nfs.exports-auth-enable: on
    features.cache-invalidation: off

This was set up as a replica 2 and I would like now to turn into a 
replica 3. I believe it's possible without loss of data (combination of 
"replace-brick" and other commands), but cannot find any docs describing 
the process.

Am I right that it is possible ? Where can I find documentation ?


As a result of Coronavirus-related precautions, NYU and the Center for 
Brain Imaging operations will be managed remotely until further notice.
All telephone calls and e-mail correspondence are being monitored 
remotely during our normal business hours of 9am-5pm, Monday through 
For MRI scanner-related emergency, please contact: Keith Sanzenbach at 
keith.sanzenbach at nyu.edu and/or Pablo Velasco at pablo.velasco at nyu.edu
For computer/hardware/software emergency, please contact: Valerio Luccio 
at valerio.luccio at nyu.edu
For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at 
chrysa at nyu.edu
For CBI-related administrative emergency, please contact: Jennifer 
Mangan at jennifer.mangan at nyu.edu

Valerio Luccio 		(212) 998-8736
Center for Brain Imaging 		4 Washington Place, Room 158
New York University 		New York, NY 10003

    "In an open world, who needs windows or gates ?"

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