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? 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. Wido
Greets, Stefan _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io