I’m continuing to read and it’s becoming more clear. The CRUSH map seems pretty amazing!
-jeremy > On May 28, 2021, at 1:10 AM, Jeremy Hansen <jer...@skidrow.la> wrote: > > Thank you both for your response. So this leads me to the next question: > > ceph osd crush rule create-replicated <rule-name> <root> <failure-domain> > <class> > > What is <root> and <failure-domain> in this case? > > It also looks like this is responsible for things like “rack awareness” type > attributes which is something I’d like to utilize.: > > # types > type 0 osd > type 1 host > type 2 chassis > type 3 rack > type 4 row > type 5 pdu > type 6 pod > type 7 room > type 8 datacenter > type 9 zone > type 10 region > type 11 root > This is something I will eventually take advantage of as well. > > Thank you! > -jeremy > > >> On May 28, 2021, at 12:03 AM, Janne Johansson <icepic...@gmail.com> wrote: >> >> Create a crush rule that only chooses non-ssd drives, then >> ceph osd pool set <perf-pool-name> crush_rule YourNewRuleName >> and it will move over to the non-ssd OSDs. >> >> Den fre 28 maj 2021 kl 02:18 skrev Jeremy Hansen <jer...@skidrow.la>: >>> >>> >>> I’m very new to Ceph so if this question makes no sense, I apologize. >>> Continuing to study but I thought an answer to this question would help me >>> understand Ceph a bit more. >>> >>> Using cephadm, I set up a cluster. Cephadm automatically creates a pool >>> for Ceph metrics. It looks like one of my ssd osd’s was allocated for the >>> PG. I’d like to understand how to remap this PG so it’s not using the SSD >>> OSDs. >>> >>> ceph pg map 1.0 >>> osdmap e205 pg 1.0 (1.0) -> up [28,33,10] acting [28,33,10] >>> >>> OSD 28 is the SSD. >>> >>> Is this possible? Does this make any sense? I’d like to reserve the SSDs >>> for their own pool. >>> >>> Thank you! >>> -jeremy >>> _______________________________________________ >>> ceph-users mailing list -- ceph-users@ceph.io >>> To unsubscribe send an email to ceph-users-le...@ceph.io >> >> >> >> -- >> May the most significant bit of your life be positive. >> _______________________________________________ >> ceph-users mailing list -- ceph-users@ceph.io >> To unsubscribe send an email to ceph-users-le...@ceph.io > > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
