Hello community,
We are building CEPH cluster on pretty old (but free) hardware. We will
have 12 nodes with 1 OSD per node and migrate data from single RAID5
setup, so our traffic is not very intense, we basically need more space
and possibility to expand it.
We plan to have data on dedicate disk in each node and my question is
about WAL/DB for Bluestore. How bad would it be to place it on
system-consumer-SSD? How big risk is it, that everything will get
"slower than using spinning HDD for the same purpose"? And how big risk
is it, that our nodes will die, because of SSD lifespan?
I am sorry, for such untechnical question.
Regards,
Anton.
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