Hello,
Based on other discussions in this list I have concluded that I need to add
NVMe to my OSD nodes and expand the NVMe (DB/WAL) for each OSD. Is there a
way to do this without destroying and rebuilding each OSD (after
safe removal from the cluster, of course)? Is there a way to use
ceph-bluestore-tool for this? Is it as simple as lvextend?
Why more NVMe? Frequent DB spillovers, and the recommendation that the
NVMe should be 40GB for every TB of HDD. When I did my initial setup I
thought that 124GB of NVMe for a 12TB HDD would be sufficient, but by the
above metric it should be more like 480GB of NVMe.
Thanks.
-Dave
--
Dave Hall
Binghamton University
kdhall(a)binghamton.edu
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