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Windows 7: Raid and Windows 7

31 Dec 2009   #1

windows 7 64 bit
Raid and Windows 7

I have just built my first pc and have installed 4 1tb hard disks that I wish to configure in RAID 5. I configured the BIOS for RAID 5 for these 4 disks and I copied the SATA drivers across from the Gigabyte GA-X58A-UD7 Motherboard disk so that I could install them during the Windows 7 installation. The drivers were present om the list and I selected and installed them, completing the OS installtion.

The problem is that the does not appear in windows explorer and when I look in disk management the RAID drive appears as 2 units under Disk 0 split into 2.0tb and roughly .75tb. Both unallocated.

So my questions are:

1 Why isn't the full RAID volume of 4tb shown in explorer?
2. What do I need to do to set the RAID up properly?

Hope you can help

My System SpecsSystem Spec
31 Dec 2009   #2

Windows 7 Pro X64 SP1

I haven't tried RAID under Win7, but it sounds like you may be bumping up against the 2TB limit for a boot disk configured with a MBR.

I believe that the array must be partitioned with the largest partition 2TB or smaller.

Here's one starting point:

Extensible Firmware Interface - Wikipedia, the free encyclopedia

As far as I know, the only mainstream maker that has embraced EFI is Apple ( on their latest Intel Macs).
My System SpecsSystem Spec
01 Jan 2010   #3

windows 7 64 bit

Thanks for the help

Seems like when I get the Raid / Windows 7 problem fixed I need to change the protocol from MBR to GPT or live with the 2tb max

Now can anybody assist on the other aspect of my problem?
My System SpecsSystem Spec


 Raid and Windows 7

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