Basic Data Partition

In Microsoft operating systems, when using basic disk partitioned with GUID Partition Table (GPT) layout, a basic data partition (BDP) is any partition identified with Globally Unique Identifier (GUID) of EBD0A0A2-B9E5-4433-87C0-68B6B72699C7.

In the GPT scheme, BDPs are the only partition types which Windows XP 64-bit can mount and normally assign drive letters.

According to Microsoft, the basic data partition is the equivalent to master boot record (MBR) partition types 0x06 (FAT16B), 0x07 (NTFS or exFAT), and 0x0B (FAT32). In practice, it is equivalent to 0x01 (FAT12), 0x04 (FAT16), 0x0C (FAT32 with logical block addressing), and 0x0E (FAT16 with logical block addressing) types as well.

A Basic Data Partition can be formatted with any filesystem format, although most commonly BDPs are formatted with the NTFS, exFAT, or FAT32 filesystem formats. To programatically determine which filesystem format a BDP contains, Microsoft specifies that one should inspect the BIOS Parameter Block that is contained in the BDP's Volume Boot Record.

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