The cephfs_metadata pool makes sense on ssd, but it won't need a lot of space. Chances are that you'll have plenty of ssd storage to spare for other uses.
Personally, I'm migrating away from a cache tier and rebuilding my OSDs. I am finding that performance with Bluestore OSDs with the block.db on SSDs performs better in most cases than a cache tier, and it is a simpler design. There's some good notes here on good and bad use cases for cache tiering: http://docs.ceph.com/docs/master/rados/operations/cache-tiering/ On Mon, Jun 3, 2019 at 3:35 PM Daniele Riccucci <devs...@posteo.net> wrote: > Hello, > sorry to jump in. > I'm looking to expand with SSDs on an HDD cluster. > I'm thinking about moving cephfs_metadata to the SSDs (maybe with device > class?) or to use them as cache layer in front of the cluster. > Any tips on how to do it with ceph-ansible? > I can share the config I currently have if necessary. > Thank you. > > Daniele > > On 17/04/19 17:01, Sinan Polat wrote: > > I have deployed, expanded and upgraded multiple Ceph clusters using > ceph-ansible. Works great. > > > > What information are you looking for? > > > > -- > > Sinan > > > >> Op 17 apr. 2019 om 16:24 heeft Francois Lafont < > francois.lafont.1...@gmail.com> het volgende geschreven: > >> > >> Hi, > >> > >> +1 for ceph-ansible too. ;) > >> > >> -- > >> François (flaf) > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@lists.ceph.com > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Shawn Iverson, CETL Director of Technology Rush County Schools 765-932-3901 option 7 ivers...@rushville.k12.in.us [image: Cybersecurity]
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