On 08/24/2014 08:27 PM, Andrei Mikhailovsky wrote: > Hello guys, > > I am planning to do rbd images off-site backup with rbd export-diff and I was wondering if ceph has checksumming functionality so that I can compare source and destination files for consistency? If so, how do I retrieve the checksum values from the ceph cluster? > That would be rather difficult. There is no checksum, but to have a valid checksum you would need to verify the whole RBD image. That means reading the whole image and calculating the checksum based on that. > Thanks > > Andrei > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Wido den Hollander 42on B.V. Ceph trainer and consultant Phone: +31 (0)20 700 9902 Skype: contact42on