Microsoft basic data partition: Difference between revisions

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According to Microsoft, the basic data partition is the equivalent to [[master boot record]] (MBR) partition types <tt>[[Partition type#PID 06h|0x06]]</tt> ([[FAT16B]]), <tt>[[Partition type#PID 07h|0x07]]</tt> ([[NTFS]] or [[exFAT]]), and <tt>[[Partition type#PID 0Bh|0x0B]]</tt> ([[FAT32]]).<ref name=GPTFAQ /> In practice, it is equivalent to <tt>[[Partition type#PID 01h|0x01]]</tt> ([[FAT12]]), <tt>[[Partition type#PID 04h|0x04]]</tt> ([[FAT16]]), <tt>[[Partition type#PID 0Ch|0x0C]]</tt> (FAT32 with [[logical block addressing]]), and <tt>[[Partition type#PID 0Eh|0x0E]]</tt> (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 formatsfilesystems. 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]].

When a Microsoft operating system converts a GPT-partitioned [[Logical Disk Manager#Basic and dynamic disks and volumes|basic disk]] to a [[dynamic disk]], all BDPs are combined and converted to a single [[Logical Disk Manager]] data partition identified with GUID <tt>AF9B60A0-1431-4F62-BC68-3311714A69AD</tt>. This is analogous to the conversion from partition types <tt>0x01</tt>, <tt>0x04</tt>, <tt>0x06</tt>, <tt>0x07</tt>, <tt>0x0B</tt>, <tt>0x0C</tt>, and <tt>0x0E</tt> to partition type <tt>[[Partition type#PID 42h|0x42]]</tt> on MBR partitioned disks.