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I have this weird issue that I've been trying to figure out but been stuck for a week..

Issue Summary below:

  • 6 BRAND NEW SAS Cheetah drives 450gb on Poweredge R710.

  • Configured Raid 10 with result of 900 GB of storage.

  • When I go to BIOs, it only sees Drives 0, 1, 2, 3, and 5. Does not see Drive 4.

  • Drives 0, 1, 2, 3, and 5 all have 1 solid green light, which means they're online according to Owner's Manual Drive light indicators

  • Drive 4 has TWO SOLID GREEN LIGHTS, which doesn't specify anywhere what they mean based on my research.

Questions below:

  1. I've replaced the drive in possibility of a bad drive but the result is the same upon swapping. Has anyone seen this issue before and know what two solid green light indicate?

  2. If I get drive 4 to come online some how, will I need to reconfigure my raid 10 or will it auto configure with Drive 5, and auto-increase my storage space?

  3. I currently have installed ESXi 5.5 on it. If I reconfigure the RAID10 to RAID 6, will the drives need to be formatted and will I need to reinstall everything?

I'm using Raid10 on this server as it will be mainly used for Terminal servers.

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  • Maybe it's configured to be a hot spare?
    – jordanm
    Mar 11, 2017 at 16:36
  • I believe the drive 5 is set as a Fault Tolerance looking at BIOs. So I guess that means Drive 4 is just useless at this point? Mar 11, 2017 at 17:00

1 Answer 1

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What does "PD Count" show you in RAID BIOS?

In my case, I created RAID1 with 2 HDDs, so I have 2xPDs and 1xVD:PERC Screenshot

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