RAID5, 2 drives ok, 1 drive, 1 drive removed from RAID

[karnqu]

Got myself into a pickle...

I have a RAID5 with 4 drives.

1 Drive has a hardware failure
1 Drive was removed from array accidentally while trying fix the problem
2 Drives show up fine and look ready to go

I know I'm out of luck on the failed drive but does it seem at all possible to restore 1 drive removed from the array be restored using ZAR?

Thanks a ton,
- Jake

[Alexey V. Gubin]

You need to feed ZAR the three good drives. Then, use a "Reconstruct the RAID, then recover data" mode and it should work. In a RAID5, you need N-1 drives for a rebuild.

[karnqu]

Thanks for the information, after convincing my motherboard to view the drives individually it seemed to work.

It successfully detected my first partition and I recovered my files (woot!). But then it didn't detect the second partition and when using the right click menu to find it automatically it blows up with "thread fault PartitionScanThread".

Seems like most of the time you want the log file so I went ahead and emailed that to you.

Is that second partition just really messed up or is this an software issue?

Thanks,
jake

Zar Version: 8.4 build 15
OS: Windows 7 x64
Filesystem: NTFS

[Alexey V. Gubin]

This is a software issue.

However, if you only have two partitions, you can right click the partition list, pick "Define the volume manually", enter the size of the first partition as "Start" and either enter the approximate size for the second partition, or enter something large (like the size of the entire RAID). Then click OK. If you use large size, it will ask to trim the size so that the volume does not spill out of the available disk - agree to that. Then, have it scan the manually defined partition.

That would be the quickest option available.