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January 4th, 2019 19:00

Mistake Replacing RAID 1 Hard Drive

Hello all,

I have a drive in "degraded" state that I am trying to replace, and I am afraid I made a mistake. I am looking for advice on how to proceed. I don't have specific hardware details as I am offsite, but PowerEdge, Windows 2000 and Perc 4 or 5 with OpenManage Admin.

Steps I have taken:

1)  I took degraded drive "offline" via OpenManage Admin (v4 or 5). I was presented with possible data loss warning, but proceeded anyways.

2) I had planned on hot-swapping the degraded disk, but I had trouble removing the lower horizontal drive tray (degraded disk 0:1). So I shutdown so I could try harder without crashing a head or something. I got the tray out with some force, but recall that when I shutdown, disk 0:1 was offline (by mistake actually). I believe that shutting down, especially with a disk offline was a big mistake? I hope I can recover.

3) I replaced the degraded disk while powered off (and degraded disk 0:1 offline)

4) Startup attempt appears to have to failed. I got as far as "Press ctrl+alt+delete to login" but after doing so, I never came to the actual login screen. It was late so I had power off and  leave work. Uhg!

I am trying to have a plan for Monday on how to proceed. My plan is to 1st get back to bootable state by:

1) Put degraded back in and try to startup.

a) If successful startup:

- Hot-swap degraded with new replacement disk.

- Bring disk back online and hope for auto-rebuild.

- Done.

b) If startup fails (cry):

- Reboot into controller bios and try to edit array there to bring disk 0:1 (still degraded) back to online state?

- Try to startup again (cross-fingers).

- Once booted, take disk 0:1 back offline then hot-swap degraded with new. Finally set disk 0:1 back online and hope for auto-rebuild.

If that doesn't work, I am very scared. Please review my plan and offer any suggestions as to how best to proceed. As stated it wasn't my intention to shutdown. I only did so because of troubles removing tray with degraded disk, and I did not want to crash a head or something with a jerk.

I am also a bit worried that I read that it's possible that a rebuild could copy new empty disk to other good disk if not properly swapped when the disk being replaced is 0:1 and not 0:0. Please advise if that's true and how to avoid THAT! :-)

Thank you,

Chris

PS. Just dawns on me that new drive is not formatted, do I need to format via bios before doing anything else, or should I just try to get back to bootable state 1st?

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January 7th, 2019 06:00

Rgbworld,

To start would you clarify the controller you are using, as well as if when you boot to the controller bios what is the status of the Virtual and Physical disks?

This will help us understand what you are seeing and the steps to move forward. 

Let us know

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