Den tis 3 mars 2020 kl 21:48 skrev Stefan Priebe - Profihost AG < s.priebe@xxxxxxxxxxxx>: > > You can use a full local export, piped to some hash program (this is > > what Backurne¹ does) : rbd export <image> - | xxhsum > > Then, check the hash consistency with the original > > Thanks for the suggestion but this still needs to run an rbd export on > the source and target snapshot everytime to compare hashes? Which is > slow if you talk about 100's of terrabytes of data isn't it? > Sorry for not adding anything to solve your issue, but wouldn't *any* method to validate that 100TB is identical to some other 100TB always be slow? It seems slightly illogical to me to mistrust that copy A is 100% identical to copy B after some kind of sync/replication/snap/rebuild but then hope for a method which doesn't involve reading 100s of TB to make sure they actually are. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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