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Unusable drive space on fresh RAID OS install/Config Question

vpnsol123
vpnsol123 asked
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Last Modified: 2018-03-26
Its basically end result - Unusable Drive space.

I have a Dell R610 with 6 bays. I grabbed 6 - 600GB 10k drives to be put into a RAID5. I installed the drives - went into the RAID controller utility - selected all in a RAID 5 - no problem. Put in my Dell Systems Management bootable DVD - selected Server 2008 R2 SP1 and ran it. It finished - asked for the 2008 R2 SP1 media. I put that in and it brought up the Windows install that we all know so well. Everything going great until I got to where to install the OS. I had two choices (Both showing Disk 0 unallocated). One was 2048GB and the other 748GB. Truth be told - I wanted to have 1 entry so I could carve out a 100 or 200GB OS partition and install there. After trying to figure out why it was doing that I gave up and tried to choose the 748 allocation since the data I need to put on this server is a little under 2TB. I was welcomed with an error: Windows is unable to install to the selected location: 0x80300024. Fine. I give up. I'll choose the 2048GB entry and click New and choose 100GB of it to install Windows. I allowed it to complete and when the OS was up - it only showed the 100GB C drive so - I went into Disk Management. I right clicked on the first (1948GB) black uninitialized space and created a simple volume. Good. Next tried the 748. No options are available in the 748 selection.

What I was trying to accomplish was a single VD - RAID 5 config with a 200GB OS and rest to a single Data volume. I tried changing from BIOS to UEFI during the install and after.

I have only needed to change UEFI if I had DISKS 2TB or larger - not that the RAID was over 2TB but it certainly seems coincidental that it broke it apart at 2048 and the rest placed in a separate unallocated line item.

Any ideas on either how to get in the config I am looking for or how to at least utilize the 2048 and the 748?
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