Hi Ronny and Eneko,
Just to say: thank you for your replies!
MJ
On 3/2/20 9:26 AM, Eneko Lacunza wrote:
Hi MJ,
El 29/2/20 a las 12:21, mj escribió:
Hi,
We have a failing filestore OSD HDD in our pve 5.4 cluster on ceph
12.2.13.
I have ordered a replacement SSD, but we have the following doubt:
Should we now replace the filestore HDD (journal on an SSD) with a
bluestore SSD? Or should we keep the new SSD in filestore config, in
order to minimise the time we run in 'mixed mode'.
We have the intention to replace all filestore HDD OSDs with bluestore
SSDs, but not short term, starting in half year or so.
So the question is really: can we run mixed bluestore/filestore ceph
cluster for an extended period of time? Anything particular to consider?
We have mixed bluestore/filestore clusters in production. Other than the
increased RAM use by bluestore OSDs, we haven't noticed anything
special. There was a CRC-related bug generating false warnings in
filestore OSDs but it was fixed some time ago and eventually warnings
stopped popping up.
Cheers
Eneko
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