Arch Linux

whoop

Member

Registered: 2009-05-28

Posts: 101

4x 2TB hdd in RAID 10 on legacy BIOS?

Is it possible to have four 2TB hard disks running in RAID 10 on motherboard that only runs legacy BIOS?
So something in the lines of a 1024MB /boot and the rest for /

As I understand it that using over 2TB hdd requires UEFI and GPT.
But in this case you would be using 2TB hdd's but getting a root system that is larger than 2TB because of RAID 10

Cheers.

twobooks

Member

From: rainforest

Registered: 2020-06-23

Posts: 47

Re: 4x 2TB hdd in RAID 10 on legacy BIOS?

legacy BIOS also support GPT, as long as you create GPT on all the hdds. software RAID is better than fake RAID, if your motherboard supports IDE, AHCI, and RAID, you should choose AHCI unless you want to use fake RAID.

nl6720

The Evil Wiki Admin

Registered: 2016-07-02

Posts: 714

Re: 4x 2TB hdd in RAID 10 on legacy BIOS?

The 2 TiB (not TB) limit is for MBR itself. Meaning it's a limit for the disk on which MBR is placed.

You shouldn't have trouble with using MBR for each disk. If you're doing weird things like placing an MBR inside RAID, then you'll hit the 2 TiB limit, so don't do that.

As twobooks said, BIOS/GPT booting is a possibility, if it works on your motherboard's firmware, that is. If it does, then by all means use GPT.