30 Jan
2020
30 Jan
'20
4:06 p.m.
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