Do they have a form of disk write cache? Have seen really bad performance on HD with disk write cache enabled, same thing disk showing 100% high latency.
Disabling via hdparm -W0 has solved my and a few others issues. On Tue, 11 Dec 2018 at 10:43 AM, Tyler Bishop < tyler.bis...@beyondhosting.net> wrote: > All 4 of these SSD that i've converted to Bluestore are behaving this > way. I have around 300 of these drives in a very large production > cluster and do not have this type of behavior with Filestore. > > On the filestore setup these SSD are partitioned 20GB for journal and > 800GB for data. > > The systems were never powered off or anything during the conversion > from filestore to bluestore. > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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