I have used the calculator at https://ceph.com/pgcalc/ which looks at relative sizes of pools and makes a suggestion.
Subhachandra On Thu, Aug 9, 2018 at 1:11 PM, Satish Patel <satish....@gmail.com> wrote: > Thanks Subhachandra, > > That is good point but how do i calculate that PG based on size? > > On Thu, Aug 9, 2018 at 1:42 PM, Subhachandra Chandra > <schan...@grailbio.com> wrote: > > If pool1 is going to be much smaller than pool2, you may want more PGs in > > pool2 for better distribution of data. > > > > > > > > > > On Wed, Aug 8, 2018 at 12:40 AM, Sébastien VIGNERON > > <sebastien.vigne...@criann.fr> wrote: > >> > >> The formula seems correct for a 100 pg/OSD target. > >> > >> > >> > Le 8 août 2018 à 04:21, Satish Patel <satish....@gmail.com> a écrit : > >> > > >> > Thanks! > >> > > >> > Do you have any comments on Question: 1 ? > >> > > >> > On Tue, Aug 7, 2018 at 10:59 AM, Sébastien VIGNERON > >> > <sebastien.vigne...@criann.fr> wrote: > >> >> Question 2: > >> >> > >> >> ceph osd pool set-quota <poolname> max_objects|max_bytes <val> > >> >> set object or byte limit on pool > >> >> > >> >> > >> >>> Le 7 août 2018 à 16:50, Satish Patel <satish....@gmail.com> a > écrit : > >> >>> > >> >>> Folks, > >> >>> > >> >>> I am little confused so just need clarification, I have 14 osd in my > >> >>> cluster and i want to create two pool (pool-1 & pool-2) how do i > >> >>> device pg between two pool with replication 3 > >> >>> > >> >>> Question: 1 > >> >>> > >> >>> Is this correct formula? > >> >>> > >> >>> 14 * 100 / 3 / 2 = 233 ( power of 2 would be 256) > >> >>> > >> >>> So should i give 256 PG per pool right? > >> >>> > >> >>> pool-1 = 256 pg & pgp > >> >>> poo-2 = 256 pg & pgp > >> >>> > >> >>> > >> >>> Question: 2 > >> >>> > >> >>> How do i set limit on pool for example if i want pool-1 can only use > >> >>> 500GB and pool-2 can use rest of the space? > >> >>> _______________________________________________ > >> >>> 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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