What is the different between MBR and GPT Disks ??
MBR is the standard partitioning scheme that's been used on hard disks since the PC first came out. It supports 4 primary partitions per hard drive, and a maximum partition size of 2TB.
GPT disks are new, and are readable only by Windows Server 2003 SP1, Windows Vista (all ersions), and Windows XP x64 Edition. The GPT disk itself can support a volume up to 2^64 blocks in length. (For 512-byte blocks, this is 9.44 ZB - zettabytes. 1 ZB is 1 billion terabytes).
MBR is the standard partitioning scheme that's been used on hard disks since the PC first came out. It supports 4 primary partitions per hard drive, and a maximum partition size of 2TB.
GPT disks are new, and are readable only by Windows Server 2003 SP1, Windows Vista (all ersions), and Windows XP x64 Edition. The GPT disk itself can support a volume up to 2^64 blocks in length. (For 512-byte blocks, this is 9.44 ZB - zettabytes. 1 ZB is 1 billion terabytes).
It can also support theoretically unlimited
partitions.Windows restricts these limits further to 256 TB for a single partition (NTFS limit), and128 partitions.Only Itanium systems running Windows Server 2003 and Windows Vista
systems with an EFI BIOS can boot from a GPT disk. The other operating
systems mentioned earlier can use GPT disks as data disks but not boot
disks.
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