Hi List, I read from ceph document[1] that there are several rbd image features - layering: layering support - striping: striping v2 support - exclusive-lock: exclusive locking support - object-map: object map support (requires exclusive-lock) - fast-diff: fast diff calculations (requires object-map) - deep-flatten: snapshot flatten support - journaling: journaled IO support (requires exclusive-lock) But I didn't found any document/blog/google tells these features supported since which kernel version. I'm using centos 7 and kernel version is 3.10 and found that only layering is supported, so I'd like to learn which version support all the features and like to give it a try, thanks in advance. [1] http://docs.ceph.com/docs/master/man/8/rbd/ -- Thanks, Chengwei
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