Hi
I am building a 3-node Ceph cluster to storE VM disk images.
We are running Ceph Nautilus with KVM.
Each node has:
Xeon 4116
512GB ram per node
Optane 905p NVMe disk with 980 GB
Previously, I was creating four OSDs per Optane disk, and using only Optane disks for all storage.
However, if I could get say 4x980GB SSDs for each node, would that improve anything?
Is there a good way of using the Optane disks as a cache? (WAL?) Or what would be a good way of making use of this hardware for VM disk images?
Could performance of Optane + 4x SSDs per node ever exceed that of pure Optane disks?
Thanks,
Victor
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