GPT vs MBR on Windows 2003 32 Bit server

I have just purchased a HP d2600 Disk with 12 x 2TB SAS drives.
I want to get the most capacity from the devices so I would like to set it up with a RAID 5 w/ Hot spare.
I will be letting the Hardware handle the RAID and then create a Disk on Windows 2003 as one big 19 TB Disk.

The question I have is do I set it up as a GPT or MBR?
What Block size must I allocate?
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yo_beeDirector of Information TechnologyAsked:
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Shawn ConstableStaff IT EngineerCommented:
GPT if you are going to use over a 2TB volume.
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yo_beeDirector of Information TechnologyAuthor Commented:
Thank you for your reply and I built my 24 TB Storage array (2 TB x 12 Drives) into 2 Raid 5 arrays.
2 TB x 4 and a 2TB x 7  w/ one Hotspare
The reason I did this was because to get the full 2 TB x 11 I would have had to set the sector size to 8 KB and I have millions of 4 KB files that will be stored on this array.  So I figured that to maximize the space set up 2 arrays the will meet both of my storage needs for the next 6 t o 18 months.

Did I do the right thing?
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Windows Server 2003

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