D20 Marvell Raid 64xx / 63xx 4 TB HDD?

[kaybischoff]

Hi there!

does anyone know how to get a 4 TB HDD working on Win 7 Pro 64 on the Marvell 64xx/63xx Raid Controller?

In the controller menu the hdd is correct with 3,8 TB, but in Windows i am not able to create a GPT Partition. When i use a different controller it works fine.

any idea?

[erik Community SuperMod]

have you tried using a smaller partition?   if you don't need RAID, have you tried using the intel controller instead?

[psuturtle Lenovo Staff · Accepted solution]

You won't be able to create a bootable partition larger than 2.2TB on D20.  This is because there is no UEFI support in BIOS, which is required in order to support GPT partitions. 

You can create a non-bootable partition larger than 2.2TB (such as a data array), but your bootable partition size can't exceed 2.2TB.  So if you have 4TB of space available, you can create a 2TB boot partition and then have another 2TB non-boot partition for use.