XP определяет hard 2TB как 1000ГБ

[Cheechako]

32 win xp не поддерживает жеские диски объемом более 2 ТБ...

Microsoft утверждает несколько иное:

Maximum size of a basic volume: 2 TB

Maximum size of a dynamic volume:
2 TB for simple and mirrored (RAID-1) volumes. Up to 64 TB for spanned and striped (RAID-0) volumes. (2 TB per disk with a maximum of 32 disks per volume.) Up to 62 TB for RAID-5 volumes. (2 TB per disk with a maximum of 32 disks per volume and 2 TB used for parity.)



For now, 2 terabytes should be considered the practical limit for both physical and logical volumes using NTFS.