Deep scrub reads the contents of every file from the store and computes
a crc32 digest. The primary compares the digest of all replicas and will
mark the PG inconsistent if any don't match.
OSDs that do not support deep scrub simply perform an ordinary chunky
scrub. Any subset of OSDs that do support deep scrub will have their
digests compared.
Signed-off-by: Mike Ryan <mike.ryan@inktank.com>
Document the rbd showmapped cmd in rbd.usage(), and rbd's man page,
and add it to the bash completion script.
Signed-off-by: Stratos Psomadakis <psomas@grnet.gr>