Am 04.03.20 um 15:44 schrieb Wido den Hollander: > > > On 3/3/20 8:46 PM, Stefan Priebe - Profihost AG wrote: >> Hello, >> >> does anybody know whether there is any mechanism to make sure an image >> looks like the original after an import-diff? >> >> While doing ceph backups on another ceph cluster i currently do a fresh >> import every 7 days. So i'm sure if something went wrong with >> import-diff i have a fresh one every 7 days. >> >> Otherwise i waste a lot of backup storage. So i wanted to know if there >> is any way to be sure that the image is OK and save and match the >> orignal snapshot afterwards. > > But how can you be sure that the program that verifies this for you > doesn't have a bug?
May be with object checksums from ceph or something like this. > I understand what you are trying to do, but it's a trade-off. Endless > snapshots are also a danger because bit-rot can sneak in somewhere which > you might not notice. > > A fresh export (full copy) every X period protects you against this. Yes that is what i'm doing since years but i just wanted to know if there might be a better way. > > Wido > >> >> Greets, >> Stefan >> _______________________________________________ >> ceph-users mailing list -- ceph-users@ceph.io >> To unsubscribe send an email to ceph-users-le...@ceph.io >> > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io > _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
