Best practices in regards to OSD’s?

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I’m a Ceph newbie in the planning phase for a first Ceph cluster. (7 osd
nodes, each with separate boot disks, one nvme and 12x16TB spinner, intend
to run rbd only with 4:2 ec, storing a lot of data, but low iops
requirements). I really want encryption-at-rest. I guess I’ll be going with
Pacific.

What’s the best practice in regard to setting up OSD’s? Looking for a good
balance in performance and ease of management.

In my idea I will slice up the nvme in 12 pieces, run bluestor with
dm-crypt and put the db on the nvme slice? Is that a correct assumption? Or
would you do it differently?

Angelo.
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