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Jonathan EdwardsFlag for United Kingdom of Great Britain and Northern Ireland

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New HDD not showing

We have a dell power edge 2900 with 3 x HDDs in a raid5

We want to add another hdd as a non raid drive.
 
We've added the drive and booted the server but the lights on the drive aren't even showing

Is there anything else we need to do?
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David
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You need to tell the controller to expose that disk to the BIOS. (Which can be done from the BIOS or using the PERC utility).   The controller "owns" all HDDs by default and has to be told what to do with all of them.
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Thanks. The disk in the bay is now flashing. I can also see the disk in dell server manager. How do I get to see it in Windows?
If windows is still booted, then you can run DISKPART, then from the DISKPART> prompt, enter RESCAN.

Or you can reboot; or run disk administrator and rescan for new devices, but just be aware that rescanning does not always work so you may have to reboot no matter what.
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PowerEdgeTech
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