http://ceph.com/docs/master/rados/operations/placement-groups/ Its provided in the example calculation on that page. Karol On 2014-03-14, 10:37 AM, "Christian Kauhaus" <kc@xxxxxxxxxx> wrote: >Am 12.03.2014 18:54, schrieb McNamara, Bradley: >> Round up your pg_num and pgp_num to the next power of 2, 2048. > >I'm wondering where the "power of two" rule comes from. I can't find it >in the >documentation. Moreover, the example at >http://ceph.com/docs/master/rados/configuration/pool-pg-config-ref/ comes >out >with 333, which is certainly not a power of two. > >If using a power of two for the number of PGs provides a benefit, I would >be >happy to know more about it. > >Regards > >Christian > >-- >Dipl.-Inf. Christian Kauhaus <>< · kc@xxxxxxxxxx · systems administration >gocept gmbh & co. kg · Forsterstraße 29 · 06112 Halle (Saale) · Germany >http://gocept.com · tel +49 345 219401-11 >Python, Pyramid, Plone, Zope · consulting, development, hosting, >operations >_______________________________________________ >ceph-users mailing list >ceph-users@xxxxxxxxxxxxxx >http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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