[Gluster-users] Reducing a volume without data loss

[Amar Tumballi]

On 02/13/2012 10:18 PM, Harry Mangalam wrote:
> Is this documented anywhere? I'm in a position where this would be very
> useful. I've posted a few queries about this as well and if the function
> exists, it's an anonymous one.
>
> Last year, Amar responded that:
>
> "If you are in testing/validating phase, 3.3.0qa15 should have this
>
> feature for you."
>
> But there's no docs to point to how to do it. If the development docs
> could be made available as a wiki or something similar, we stunt-testers
> could provide feedback, examples of gotchas and edge cases, and what
> works as expected that might have value.
>

One can do migrating of data within the existing bricks while 
remove-brick by below command:

'gluster volume remove-brick <VOLNAME> <BRICK> start'

You can give more than 1 brick if needed. Also to check what is 
happening, you can do below

'gluster volume remove-brick <VOLNAME> <BRICK> status'

Please wait for 3.3.0beta3, or else, even try later qa releases, 
3.3.0beta2 doesn't have this feature.

Regards,
Amar