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
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