> Op 24 dec. 2016 om 14:47 heeft L. Bader <ceph-us...@lbader.de> het volgende > geschreven: > > Hello, > > I have a problem with our (dead) Ceph-Cluster: The configuration seems to be > gone (deleted / overwritten) and all monitors are gone aswell. However, we do > not have (up-to-date) backups for all VMs (used with Proxmox) and we would > like to recover them from "raw" OSDs only (we have all OSDs mounted on one > Storage Server). Restoring the cluster itself seems impossible. >
Work is on it's way iirc to restore MONs from OSD data. You might want to search for that, the tracker or Github might help. > To recover the VM images I tried to write a simple tool that: > 1) searches all OSDs for udata files > 2) Sorts them by Image ID > 3) Sorts them by "position" / offset > 4) Assembles the 4MB blocks to a single file using dd > > (See: https://gitlab.lbader.de/kryptur/ceph-recovery/tree/master ) > > However, for many (nearly all) images there are missing blocks (empty parts I > guess). So I created a 4MB block of Null-Bytes for each missing parts. > > The problem is that the created Image is not usable. fdisk detects partitions > correctly, but we cannot access the data in any way. > > Is there another way to recover the data without having any (working) ceph > tools? > > Greetings and Merry Christmas :) > > Lennart > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
