https://ceph.io/community/new-luminous-crush-device-classes/ https://docs.ceph.com/docs/nautilus/rados/operations/crush-map/#device-classes On Mon, Dec 16, 2019 at 5:42 PM Philip Brown <pbrown@xxxxxxxxxx> wrote: > > Sounds very useful. > > Any online example documentation for this? > havent found any so far? > > > ----- Original Message ----- > From: "Nathan Fish" <lordcirth@xxxxxxxxx> > To: "Marc Roos" <M.Roos@xxxxxxxxxxxxxxxxx> > Cc: "ceph-users" <ceph-users@xxxxxxxxxxxxxx>, "Philip Brown" <pbrown@xxxxxxxxxx> > Sent: Monday, December 16, 2019 2:07:44 PM > Subject: Re: Separate disk sets for high IO? > > Indeed, you can set device class to pretty much arbitrary strings and > specify them. By default, 'hdd', 'ssd', and I think 'nvme' are > autodetected - though my Optanes showed up as 'ssd'. > > On Mon, Dec 16, 2019 at 4:58 PM Marc Roos <M.Roos@xxxxxxxxxxxxxxxxx> wrote: > > > > > > > > You can classify osd's, eg as ssd. And you can assign this class to a > > pool you create. This way you have have rbd's running on only ssd's. I > > think you have also a class for nvme and you can create custom classes. > > > > > > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |