MBR or GPT?

Ravynmagi

[H]ard|Gawd
Joined
Jul 12, 2006
Messages
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I have four 640GB drives that I've placed in a RAID-0 on an ICH10R controller.

Initially I did a GPT partition style, because that is what is required for arrays over 2TB. That seemed to worked, but HDTune didn't like this.

HDTune_Benchmark_Intel___Raid_0_Volume.png


So I wiped that out and created two RAID-0 arrays, both using all 4 drives. Just used 1.4TB for the first MBR drive and the rest for the second MBR drive. HDTune seems to like this better.

HDTune_Benchmark_Intel___Raid_0_Volume_122808.png


I don't necessarily need HDTune working. I can have faith that the GPT partition style would work. But I'm wondering if there are any advantages to GPT other than not having a 2TB limit?
 
As far as I know, GPT is just a different way to partition the drives. There's no performance advantage or disadvantage to it since it's the same underlying hardware and the same filesystem on top of it.
 
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