> Op 24 dec. 2016 om 17:20 heeft L. Bader <ceph-us...@lbader.de> het volgende > geschreven: > > Do you have any references on this? > > I searched for something like this quite a lot and did not find anything... >
No, saw it somewhere on the ML I think, but I am not sure. I just know it is in development or on a todo somewhere. > >> On 24.12.2016 14:55, w...@42on.com wrote: >> >>> 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
