windows can not be installed on this disk. This computer's hardware may not support booting to this disk. Ensure that the disk controller is enabled in the computer's BIOS menu

Hello all,

I am trying to install Server 2012 R2 Datacenter on Lenovo ThinkServer RD650 with AnyRAID 720ix setup as RAID 6 as a single "virtual volume" of just under 4 TB via USB DVD drive and I am getting the following error...

"windows can not be installed on this disk. This computer's hardware may not support booting to this disk. Ensure that the disk controller is enabled in the computer's BIOS menu"

Note that it can see the total volume but wants to break it into two partitions to keep it under or at 2TB.

Why exactly is this happening with a modern server and RAID controller?  Do I simply need to do this?....
https://www.youtube.com/watch?v=7sIfo9Mrafs

Or something more in the BIOS or RAID controller BIOS?  This latter thing I don't feel I should have to deal with on a modern server, but I digress.

Also, I was hoping the "Thinkserver Deployment Manager" --> Deployment and selecting Server 2012 R2 as the OS would create a configuration environment for this to "just work", but was unable to get the thing to see my USB DVD drive (for lack of its own internal CD drive and two USB ports)...ughh.  So it could not install from the Windows 2012 R2 DVD.

Anyone who has been through this and can remember the ritual they invoked to get this working, I will be greatly appreciative for your help and insight.  Thank you :-)
CnicNVAsked:
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rindiCommented:
To be able to boot Windows from a disk larger than 2 TB, you need a GPT, and also an UEFI BIOS. Does your server have an UEFI BIOS?

Anyway, an OS should never be installed to a disk that large. "012r2 and similar OS fit nicely onto 100GB. So whether you have an UEFI BIOS or not you should setup your RAID array into 2 Volumes. One a small one of around 100GB, and the other with the rest of the space.

After that you can install the OS to the 100GB Disk,, and then use the rest for the data. In your OS's diskmanagement your 2 RAID volumes should then appear as 2 separate disk, and not as partitions.

So just check your RAID controller's settings, and split the array into 2 Volumes.
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noxchoGlobal Support CoordinatorCommented:
If you have a spare SSD drives to install OS on them then keep the current colume as is, and install OS on 160/180GB SSD drive. The large volume of your RAID can be then used for data.
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CnicNVAuthor Commented:
Perfect! This got it working.  Thanks :-)
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