On 3 Dec 2015 9:35 p.m., "Robert LeBlanc" <robert@xxxxxxxxxxxxx> wrote:
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> Reweighting the OSD to 0.0 or setting the osd out (but not terminating
> the process) should allow it to backfill the PGs to a new OSD. I would
> try the reweight first (and in a test environment).
> - ----------------
> Robert LeBlanc
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>
> On Thu, Dec 3, 2015 at 10:32 AM, Florent B wrote:
> > Hi everyone,
> >
> > I have some pools with size=1.
> >
> > I want to perform some maintenance on some OSDs.
> >
> > I would like to know if there is a way to remap PGs which single copy is
> > on osd.X
> >
> > Is it possible ?
> >
> > I know about primary affinity, setting an OSD out... but this is not
> > specific to PGs with size=1, it will also rebalance PGs with size=2
> > which is not necessary in my case.
> >
> > Thank you a lot.
> >
> > Florent
>
AFAIK, you can remap PGs from osd, only by set PGs to another crush rule
Just create new, temporary crushmap and set pool, to it _______________________________________________
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