Re: rbd pool:replica size choose: 2 vs 3

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> Op 23 september 2016 om 10:04 schreef mj <lists@xxxxxxxxxxxxx>:
> 
> 
> Hi,
> 
> On 09/23/2016 09:41 AM, Dan van der Ster wrote:
> >> If you care about your data you run with size = 3 and min_size = 2.
> >>
> >> Wido
> 
> We're currently running with min_size 1. Can we simply change this, 
> online, with:
> 
> ceph osd pool set vm-storage min_size 2
> 
> and expect everything to continue running?
> 

Yes, it will. No rebalance will happen. min_size = 2 just tells Ceph that 2 replicas need to be online for I/O (Read and Write) to continue.

Wido

> (our cluster is HEALTH_OK, enough disk space, etc, etc)
> 
> MJ
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