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.bishop@xxxxxxxxxxxxxxxxx> 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.
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