[ceph-users] Re: Can Ceph Do The Job?

Bastiaan Visser (bastiaan) writes:

We are making hourly snapshots of ~400 rbd drives in one (spinning-rust) cluster. The snapshots are made one by one. Total size of the base images is around 80TB. The entire process takes a few minutes. We do not experience any problems doing this.

Out of curiosity - which version of CEPH ? I've read that I/O to RBD images for which snapshots exist is impacted. Is that your experience ? And, do you maintain the snapshots, or are they discarded after (i.e.: are they used as potential point-in-time recovery points, or are they used to take a backup, then discarded ?) Cheers, Phil