Hi, Yes, min_size=1 and size=2 for ssd for hdd it is min_size=1 and size=3 Could you please advice, about using hdd and ssd in a same ceph cluster. Is it okay for production grade openstack? We have created a new replicated rule for ssd, different pool for ssd and new disk marking ssd class. not idea about ceph-balancer Regards, Munna On Thu, Dec 9, 2021 at 1:54 PM Stefan Kooman <stefan@xxxxxx> wrote: > Hi, > > On 12/9/21 03:11, Md. Hejbul Tawhid MUNNA wrote: > > Hi, > > > > Yes, we have added new osd. Previously we had only one type disk, hdd. > now > > we have added ssd disk separate them with replicated_rule and device > class > > > > ID CLASS WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS > ... > ... > > 40 ssd 1.81898 1.00000 1.8 TiB 141 GiB 1.7 TiB 7.55 0.25 1035 > > 41 ssd 1.81898 1.00000 1.8 TiB 94 GiB 1.7 TiB 5.07 0.17 1043 > > TOTAL 226 TiB 69 TiB 158 TiB 30.40 > > Is that a replicated with min_size=1 and size=2? Or are you planning on > adding a third SSD osd? > > > MIN/MAX VAR: 0.17/1.30 STDDEV: 6.38 > > It looks like the data placement could be optimized by the Ceph > balancer. And this would provide you with (a lot more) space. Do you use > Ceph balancer? > > These tools might be helpful as well: > > https://github.com/TheJJ/ceph-balancer > https://github.com/digitalocean/pgremapper > > Gr. Stefan > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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