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Fletcher-ReinhardtFlag for United States of America

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SAS failed drive with Flashing LED

We have a RAID5 installed using 4 x 72GB 15K SAS drives on a P400 control.

One of the drives had a solid amber LED and the green LED showed no activity.

We replaced the drive with a replacement drive from HP.  The RAID5 started to rebuild as expected and then the amber LED started flashing indicating a predictive failure.

We had HP send us a 2nd replacement drive.  When this drive was installed, the amber LED went solid after the green LED flashes only 2 times.

Since 3 of the 4 drives are still workng, the RAID5 is still running, but not in fault tolerant mode.

Can anyone explain why the RAID5 will not rebuild?  Is it possible that HP sent us two bad drives?

I noticed that the firmware of the orginal 4 drives was different than the 2 drives HP sent as replacements.  Does the firmware of all 4 drives in the array need to be the same?
Avatar of cdbeste

You may want to try swapping out the raid adapter...
I doubt it's the disks if there are that many failing, we get through hundreds of them building servers and the DOA rate is less than 0.25%.

As said above it could be the P400 but equally it could be the cable(s) or the backplane. There are 2 chips on the backplane one of these may be flakey.

Disk firmware doesn't have to match but it's always best to download the latest from HP's website. (Enter P400 rather than the server or disk on the driver search page and you'll find the disk firmware there).
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