[PVE-User] confirmation on osd replacement
lists at merit.unu.edu
Wed Nov 25 09:18:42 CET 2020
I would just like to verify/confirm something here, as we are going to
replace our spinning OSDs with SSDs.
We have 8 OSDs per server, and two empty front driveslots available.
The proxmox boot disk is internal, and currently known as /dev/sdk
Suppose I insert two new SSDs in the (two empty) front drive bays, I
expect the internal boot disk to shift from /dev/sdk to /dev/sdm
- should we expect boot problems or other side-effects of doing that?
(of course I will test on the first server, I'd just like to know what
And then I am going to first add per server two new bluestore SSDs,
making a (temporarily) total of 10 OSDs per server.
And then I want to replace the 8 remaining filestore spinning OSDs with
6 bluestore SSDs. Making again a total of 8 OSDs per server.
The idea is: first add two SSDs to increase IO capacity for the rest of
the procedure, while at the same time reducing stress on our filestore
journal SSD (wear level=75%)
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