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Lost RAID5 on Openfiler

kalliasx
kalliasx asked
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Last Modified: 2013-11-14
Hi, first Let me tell you that I am a newbie when it comes to Linux :(. I've installed an OpenFiler NAS, set 4 drives in RAID5 (4x1.5Tb) and all was good and I was VERY happy with my setup. That is until today. At one point I couldn't see one of my volumes, the one where the 4.5 TB RAID5 is. If I go in Volumes, soft RAID I see the State : Active & degraded in orange, Syncronization not started.

I've looked in forums and here, and saw a post that was similar to mine, where the solution by arnold was : "mdadm -A --force dev1 dev2 dev3 dev4 dev? wher dev? is the one you think failed last out of the two."

I've tried that but I get : device /dev/md0 already active - cannot assemble it.

when I do mdadm /dev/md0 --examine
I get : No md superblock detected on /dev/md0

All I want is to bring the RAID back in whatever state so I can recover some of the data.

All drives are NO faulty... again a newbie here (which makes me think trusting OF with blind faith was a terrible mistake :().

Got about 3.5 Tb of data, some stuff I have nowhere else... not too much though, still, would like to try and access that data. I know I should do backups and most of my data I have somewhere else, just not all of it and certainly not the last week worth of work.

Any help, step by step procedure I could follow (please type FULL linux commands, not abbreviations). My devices are md0, and the disks are sdb1 (removed), sdc1 (removed), sdd1 (Member) and sde1 (Member).

Thanks in advance
All the best,

Chris
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