3 ms·
> ceph is never the answer. Its a nice idea, but in practice its just not that useful. Depends. At my last job we used it for our OpenStack block/object store
by throw0101c 3y ago
> ceph is never the answer. Its a nice idea, but in practice its just not that useful.
Depends. At my last job we used it for our OpenStack block/object store and it was performant enough. When we started it was HDD+SSD, but after a while (when I left) the plan was to go all-NVMe (once BlueStore became a thing).
- j45 3y agoSacrificing 10-30% of performance for other things that might be useful might be well worth it.
- magicalhippo 3y agoMy understanding after reading and testing is that we're talking at least two orders of magnitude difference unless you have a lot of disks (certainly more than the 6 I tried with) and quite beefy hardware. Haven't tried all-SSD cluster yet though, only spinning rust.
- throw0101c 3y agoOur OpenStack storage back-end at about ten+ storage servers, each with (IIRC) dozen+ disks eacho.