On 20/03/2016 3:38 AM, Heath Albritton wrote:
Ceph protects against bitrot at a much higher level by validating the
checksum of the entire placement group during a deep scrub.
Ceph has checksums? I didn't think it did.
Its my understanding that it just compares blocks between replications
and marks the pg invalid when it finds a mismatch, unlike btrfs/zfs
which auto repair the block if the mirror has a valid checksum.
--
Lindsay Mathieson
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