I have a relatively old Windows Server 2008 machine that I am upgrading the disk space on. The disk hardware I am upgrading to is:
- 2TB WD - WD20EARX
- 2TB Seagate - ST2000DM001
- 1TB Seagate - ST31000528AS
- 1TB Hitachi - HDS721010CLA332
- Spare 500GB WD
One of the key problems is that the motherboard does not have support for EFI, so I'm stuck to MBR partitions. Ideally I'd like to have a RAID5 with (2) 2TB and (2) 1TB drives (yes I know I will only get 1TB out of each of the 2TB drives in this configuration), but Windows throws a disk I/O error when trying to create this, even if I try to only allocate 50MB from each drive.
Edit: Windows will allow me to create a simple RAW partition on either of the 2TB drives, but any size above 1024GB will fail to format the drive.
Windows will show the option to 'Convert Disk to GPT', but this throws the same disk I/O error as above for the 2TB drives. The 1TB drives will convert successfully. Additionally, creating a spanned volume with the 2TB drives at any allocation size attempts to convert the drives to dynamic drives, and has the same failure result.
Windows will allow me to create a spanned or RAID5 volume using the (2) 1TB and (1) 500GB, but if I add either of the 2TB drives into the mix it always has this plain undescriptive disk I/O error.
It seems that any time I try to create any RAID configuration with a 2TB drive Windows doesn't allow it, even with a smaller partition size like I mentioned earlier. I would imagine that I'd be able to use part of the drive at least. Does anyone know why I'm having this problem?
Any input to this would be greatly appreciated!