I would also recommend keeping each pool at base 2 numbers of PGs. So with the 512 PGs example, do 512 PGs for the data pool and 64 PGs for the metadata pool.
On Sat, Jul 1, 2017 at 9:01 AM Wido den Hollander <w...@42on.com> wrote: > > > Op 1 juli 2017 om 1:04 schreef Tu Holmes <tu.hol...@gmail.com>: > > > > > > I would use the calculator at ceph and just set for "all in one". > > > > http://ceph.com/pgcalc/ > > > > I wouldn't do that. With CephFS the data pool(s) will contain much more > objects and data then the metadata pool. > > You can easily have 1024 PGs for the metadata pool and 8192 for the data > pool for example. > > With the example of 512 PGs in total I'd assign 64 to the metadata pool > and the rest to the data pool. > > Wido > > > > > On Fri, Jun 30, 2017 at 6:45 AM Riccardo Murri <riccardo.mu...@gmail.com > > > > wrote: > > > > > Hello! > > > > > > Are there any recommendations for how many PGs to allocate to a CephFS > > > meta-data pool? > > > > > > Assuming a simple case of a cluster with 512 PGs, to be distributed > > > across the FS data and metadata pools, how would you make the split? > > > > > > Thanks, > > > Riccardo > > > _______________________________________________ > > > ceph-users mailing list > > > ceph-users@lists.ceph.com > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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