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Problem Adding Hot Spare to Dell PowerEdge 2950

Posted on 2009-04-03
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Last Modified: 2013-11-14
We had a drive fail in our Dell PowerEdge 2950 server, which uses the Perc 5/i RAID controller. Our system is set up with only two drives in a RAID 1 mirroring configuration.

We have purchased a replacement drive and I am now trying to install it in the system by first configuring it as a hot spare, then adding it to the virtual disk and rebuilding the mirror.

When I boot into the PERC 5/i BIOS Configuration Utility, it shows the new drive under the "PD Mgmt" tab and correctly identifies all its specs. However, when I hit F2 to pull up the operations menu, the only options available to me are to turn LED blinking on and off. All other options, including "Make Global HS" are listed but unselectable.

If I look under the "VD Mgmt" tab, "Physical Disks" shows one disk as "Missing" and nothing under "Hot spares."

Does anyone know what I am doing wrong here and how I can solve this?

Thanks!

- Tom
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Question by:TomEA
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by:dolomiti
ID: 24066236
hi,
if the hot spare disk was in the bay before the other failed,
and configured as hot spare, it would be used in RIAD1,
and when swapped fail disk with a new, it wolud be returned
in HOT spare state (manually or auto).

If you add a disk in a new position position , also if there is
a fail disk, the system does not take responibility to use tha disk
as hot spare and help critical state array.

The system cannot understand that you want add a disk to a RAID1 volume:
it think that you want add capacity, and it is not possible.

Then:
1) or you extract failed disk and put new in the same position
or
2) find in menu an option to declare new disk in new position as HOT spare
and verifi that it covers your RAID1

bye
vic
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TomEA earned 0 total points
ID: 24092152
Thanks for your assistance!

With the help of Dell's technical support, I found what was ultimately the problem for us. I had removed the failed hard drive from its bay with the system turned off -- in other words, a "cold swap." That caused the system to not recognize that the failed drive had been replaced. It still viewed the new drive as failed. Dell suggests that all drives be "hot swapped" -- replaced while the system is running.

To clear the problem this time, I simply moved the drive to an unused bay that had no previous drive, and it recognized the drive immediately, allowed it to be added as a hot spare, and then began rebuilding it into the RAID array.
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