Microsoft basic data partition: Difference between revisions

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|+ Microsoft-defined GUID Partition TableGPT attribute flags for BDPs<ref>{{cite web|url=httphttps://technet2technet.microsoft.com/WindowsServer/en-us/Librarylibrary/bdeda920-1f08-4683-9ffb-7b4b50df0b5a1033cc739412(v=ws.mspx10).aspx |work=Microsoft TechNet |title=How Basic Disks workand Volumes Work | date=March 28, 2003}}</ref>

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AIn '''Basic[[Microsoft]] Data[[operating Partition'''system]]s, iswhen ausing [[partitionLogical (computing)Disk Manager#Basic and dynamic disks and volumes|partitionbasic disk]] onpartitioned awith [[dataGUID storagePartition deviceTable]] that(GPT) islayout, useda to'''basic holddata diskpartition''' volumes('''BDP''') thatis areany to[[partition be(computing)|partition]] visibleidentified towith [[WindowsGlobally XPUnique Identifier]] and(GUID) laterof operating systems{{mono|EBD0A0A2-B9E5-4433-87C0-68B6B72699C7}}.<ref name=GPTFAQ>{{cite web|url=http://www.microsoft.com/whdc/device/storage/GPT_FAQ.mspx|work=Windows and GPT FAQ|title=Windows GPT Implementation}}</ref>. The [[Globally Unique Identifier]] for the Basic Data Partition in the [[GUID Partition Table]] scheme is <tt>EBD0A0A2-B9E5-4433-87C0-68B6B72699C7</tt>.

According to Microsoft, the Basicbasic Datadata Partitionpartition is the equivalent to [[master boot record]] (MBR) partition types {{mono|[[Partition type#PID 06h|0x06,]]}} 0x07([[FAT16B]]), and{{mono|[[Partition 0x0Btype#PID in07h|0x07]]}} the([[NTFS]] or [[MasterexFAT]]), Bootand Record{{mono|MBR [[Partition Tabletype#PID 0Bh|0x0B]]}} scheme([[FAT32]]).<ref name=GPTFAQ />. In Howeverpractice, in practice it is equivalent to partition{{mono|[[Partition typestype#PID 01h|0x01]]}} ([[FAT12]]), {{mono|[[Partition type#PID 04h|0x04]]}} ([[FAT16]]), {{mono|[[Partition type#PID 0Ch|0x0C]]}} (FAT32 with [[logical block addressing]]), and {{mono|[[Partition type#PID 0Eh|0x0E]]}} (FAT16 with logical block addressing) types as well.

A Basicbasic Datadata Partitionpartition can be formatted with any [[filesystemfile system]] format, although most commonly BDPs are formatted with the [[FileNTFS, Allocation Table|FAT]]exFAT, or [[NTFS]]FAT32 filesystemfile formatssystems. To programmatically determine which filesystemfile formatsystem a BDP contains, Microsoft specifies that one should inspect the [[BIOS Parameter Block]] that is contained in the BDPsBDP's [[Volume Boot Record]].

Basic Data partitions are the only partition types (in the GPT scheme) to which Windows XP will normally assign drive letters.<ref>{{cite web|url=http://technet2.microsoft.com/WindowsServer/en/Library/ca099518-dde5-4eac-a1f1-38eff6e3e5091033.mspx|work=Microsoft TechNet|title=DiskPart documentation}}</ref>

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

A Basic Data Partition can be formatted with any [[filesystem]] format, although most commonly BDPs are formatted with the [[File Allocation Table|FAT]] or [[NTFS]] filesystem formats. To determine which filesystem format a BDP contains, Microsoft specifies that one should inspect the [[BIOS Parameter Block]] that is contained in the BDPs [[Volume Boot Record]].

Linux used the same partition type GUID for basic data partition as Windows prior to introduction of a Linux specific Data Partition GUID {{mono|0FC63DAF-8483-4772-8E79-3D69D8477DE4}}.<ref name="RodSmithMLpost">{{cite mailing list|last=Smith|first=Rod|title=Need for a Unique Linux GPT GUID Type Code|mailing-list=bug-parted|date=June 23, 2011|url=http://lists.gnu.org/archive/html/bug-parted/2011-06/msg00026.html |via=lists.gnu.org |access-date=April 10, 2013}}</ref>

When a Microsoft operating system converts a (GPT partitioned) "Basic Disk" to a "Dynamic Disk", all BDPs are combined and converted to a single [[Logical Disk Manager]] data partition (GUID <tt>AF9B60A0-1431-4F62-BC68-3311714A69AD</tt>). This is analogous to the conversion from partition types 0x01, 0x04, 0x06, 0x07, 0x0B, 0x0C, and 0x0E to partition type 0x42 on MBR partitioned disks.

== References ==

{{Reflist}}

<references />

== See also ==

* [[Microsoft Reserved Partition]]

* [[Disk partitioning]]

* [[EFI system partition]] (ESP), a reserved partition on GPT disk

* [[Microsoft Reserved Partition]] (MSR), a reserved partition on GPT disk

[[Category:Disk file systems]]

[[Category:Disk partitions]]

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