On a related note, Intel will be presenting about their Open CAS
software that provides caching at the block layer under the OSD at the
weekly performance meeting on 2/24/2022 (similar to dm-cache, but with
differences regarding the implementation). This isn't a replacement for
cache tiering, but has some overlapping benefits and may be of interest
to folks in the community. I'll send out a reminder to the list when we
get closer to the meeting.
Mark
On 2/16/22 09:43, Neha Ojha wrote:
Hi everyone,
We'd like to understand how many users are using cache tiering and in
which release.
The cache tiering code is not actively maintained, and there are known
performance issues with using it (documented in
https://docs.ceph.com/en/latest/rados/operations/cache-tiering/#a-word-of-caution).
We are wondering if we can deprecate cache tiering sometime soon.
Thanks,
Neha
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