Do those SSD's have capacitors (aka power loss protection)? I took a look at the spec sheet on samsung's site and I don't see it mentioned. If that's the case it could certainly explain the performance you're seeing. Not all enterprise SSD's have it and it's a must have for Ceph since it syncs every write directly to disk.
You may also want to look for something with a higher DWPD so you can get more life out of them. _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
