Hi Martin,
I believe RH's reference architecture team has deployed ceph with CAS
(and perhaps open CAS when it was open sourced), but I'm not sure if
there's been any integration work done yet with ceph-csi. Theoretically
it should be fairly easy though since the OSD will just treat it as
generic block device. As far as the underlying daemons go, I don't
think there's anything really preventing it from working. It's
primarily setup/orchestration/ui/testing that's holding it back. The
testing piece is probably the biggest hurdle (the same goes for dm-cache
and other options that might be worth considering).
One of the reasons I wanted to have that meeting was to get the ball
rolling and start thinking about what caching will look if we move
further away from rados level cache tiering.
Mark
On 3/14/22 07:19, Martin Plochberger wrote:
Hello, ceph-users community
I have watched the recording of "Ceph Performance Meeting 2022-03-03" (in
the Ceph channel, link https://www.youtube.com/watch?v=syq_LTg25T4) about
OpenCAS and block caching yesterday and it was really informative to me (I
especially liked the part where the filtering options are talked about ;)).
My question after watching the meeting:
Is there some documentation on compatibility/problems with ceph-csi (
https://github.com/ceph/ceph-csi)?
I started searching for further reading material (OpenCAS and ceph-csi)
online today but was unsuccessful so far :).
Any pointers/links would be appreciated while I continue my search.
CherrsM
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