failed disk on raid 0 - TechRepublic
Question
April 22, 2009 at 03:07 AM
cydolf

failed disk on raid 0

by cydolf . Updated 17 years, 2 months ago

Hi all,

well I’ve been made only too aware by this predicament that RAID 0 is a bad IDEA.

Basically when I joined my current IT department, I was informed that all our RAID was set to RAID 6 or 5.

We had 2 disks (bay 2 and 3) in our msa20 fail. This was diagnosed by our HP diagnostics utility. Initially, one drive (bay 3) turned orange. I was always under the impression that this was a raid 5 or 6 as all our other setups.

I then removed and re-inserted the disk in bay 3 and it seemed to accept it and all lights showed green. Upon advice from HP, I ran the diagnostics and at this point found the raid to be RAID 0 and that there were actually 2 dives faulty (bay 2 and 3). I was told to power down the storage and disks and to replace the disks if I had new ones. I did this and had to enable the logical drives in the ACU. This enabled with no warnings. I then had to re-activate the disks in the computer management screen and they came back unallocated.

As I was unable to get back the E drive which was the spanned drive of the 3 logical drives, the only option given was to create new volume. at this point, in my ultimate wisdom, I followed this through without formatting the drives. (BAD IDEA)

Now, the question I have is,whether there is a way to put this back to raid 6 without loosing the data? And is there a way to undo the create volume given that I did not format the drive?

I have used a tool “GETDATABACK” to determine that there is still currently data on the disks which can quite possibly be recovered.

Your help will be greatly appreciated.

by the way, we use server 2003 standard.

This discussion is locked

All Comments