Raid 10 Bootable?

Thinking about building a Windows 2012 server with a raid 10.  I want to know is, can a server boot from a raid 10 or do I have to have a separate disk or a raid 1 to boot from?
bdhssaAsked:
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DavidPresidentCommented:
Is it the software-based RAID10, or do you have a hardware RAID controller.  If the latter, then no worries, the O/S doesn't even know the RAID level.    If the former ... no.

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bdhssaAuthor Commented:
It is a hardware based raid.
bdhssaAuthor Commented:
Thank you
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Hardware controllers in most cases will do fine booting from a RAID 10.  HOWEVER, BE CAREFUL - The controller and the system must support UEFI and booting off GPT drives because MBR format disks can only support booting off a 2 TB "physical" disk.
nociSoftware EngineerCommented:
With software there is a setup possible.
If you ensure the bootloader + kernel comes from a raid 1 partition on the disks...
then the remainder can be configured as a stripe set.
(This is a configuration used on many NAS systems, with say 8 disks, then there is a
part of the disk partitioned for firmware, 8 way raid 1, with 2 hot + 6 spare)
and the remainder of each disk in the wanted raid, 5,6,10..
Gerald ConnollyCommented:
must support UEFI and booting off GPT drives because MBR format disks can only support booting off a 2 TB "physical" disk.

If it is hardware RAID and as long as the presented LUN is <2TB then a UEFI BIOS is not required, and Windows will boot quite happily off whatever the RAID level is.

If the LUN is >2TB then a UEFI BIOS is required.

When using hardware RAID, as far as the BIOS/OS is concerned, the presented LUNs are locally connected SCSI disks.
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