How much (%) is left unprovisioned on those (840s?) ? And were they
trim'd/secure erased before deployment?
On 2013-12-03 12:45, Emmanuel Lacour wrote:
On Tue, Dec 03, 2013 at 12:38:54PM +0000, James Pearce wrote:
Since the journal partitions are generally small, it shouldn't need
to be.
here with 2 journals (2 osds) on two ssd (samsung 850 pro, soft raid1
+
lvm + xfs) trim is just obligatory. We forget to set it at cluster
setup
and one week later, after migrating a lot of VM, the performances
dropped to something like 10MB/s. Running fstrim on it gave back
normal
performances.
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