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Inside Windows® Server 2003 by William Boswell

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Working with GPT Disks

As I mentioned at the start of this chapter, the Itanium platform uses a new disk partitioning scheme called GUID Partition Tables, or GPTs. This new scheme was developed to address several shortcomings of the classic MBR approach:

  • An MBR disk can have only four primary partitions.

  • The maximum partition size is limited by a truncated Cylinder/Head/Sector geometry notation.

  • There is no coordination between the various partition schemes. This causes a problem for disk utility vendors who must anticipate how a particular scheme will align with cylinder boundaries for both bare disks and virtual disks presented by RAID controllers.

  • MBR disks have spawned a generation of utilities and operating systems that use hidden sectors containing ...

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