If you know the prefix (which is seems you do) and the original size of the rbd you should be able to use my utility.
https://github.com/smmoore/ceph/blob/master/rbd_restore.sh You will need all the rados files in the current working directory you execute the script from. We have used it many times so far and works for us. I have not had any outside feedback on it's usage. But if you are truly missing any files, it will seek over them and your rbd might be corrupt. Likewise if a file itself is damaged, it will write what is in that file to the rebuild. HTH, Shawn -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Denis Fondras Sent: Tuesday, January 08, 2013 7:57 AM To: [email protected] Subject: Re: Is Ceph recovery able to handle massive crash Hello, I'm wondering if I can get every "rb.0.8e10.3e2219d7.*" from the OSD drive and cat them together and get back a usable raw volume from which I could get back my data ? Everything seems to be there but I don't know the order of the rbd objects. Are the last bytes of the file name the offset of the block ? Regards, Denis -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
