The purpose of this topic, for volumes of the word used to refer to a valid file system, the most common, of Windows operating systems used to store concept of NTFS-formatted partitions. Volume has a Win32 path names that can cite Find First Volume and Find Next Volume features, and usually has a drive letter assigned to it, for example, c:. For more information on volumes and file systems, see file system.
In this topic:
- Basic Disks
- Dynamic Disks
- Partition Styles
- Master Boot Record
- GUID Partition Table
- Detecting the Type of Disk
- Related topics
Refers to when there are two types of disk storage types in this context: basic disk and dynamic disk. Please note the discussion of the storage type is not the same physical disk or partition styles, are related but separate concepts. For example, referred to as basic disks does not imply a specific partition styles use to discuss the partition style of the disk also needs to be specified. Simplify basic disk storage type description relates to a physical hard disk, see disk devices and partitions.
Basic Disks:
Basic disks are the most commonly used Windows storage type. The term refers to a basic disk contains partitions, primary partitions and logical drives, disks, and these in turn through a popular file format for document storage volumes. Basic disk provides a simple storage solution accommodates a range of practical programmers to changing storage requirements. Basic disks to a cluster disk, Institute of electrical and Electronics Engineers (IEEE) 1394 disks, and universal serial bus (USB) to dismount the drive. For backward compatibility, basic disks typically use the same master boot record (MBR) partitioning style as used by Microsoft MS-DOS operating system and the disk in all versions of Windows, but you can add support for GUID partition table (GPT) partition on systems that support it. More information about MBR and GPT partition styles, see partition styles section.
By extending them into adjacent, contiguous unallocated space on the same disk, can be added to existing primary partitions and logical drives for more space. To extend a basic volume, it must be formatted using the NTFS file system. You can expand the contiguous free space in a logical drive within an extended partition that contains it. If you extend the logical drive to exceed available space in the extended partition, extended partition grows up as long as unallocated contiguous space followed by the extended partition contains logical drives. For more information, see basic disks and volumes.
The following operations can be performed only on basic disks:
- Create and delete a primary partition and an extended partition.
- Create and delete logical drives within an extended partition.
- To format the partition and mark it as active.
Dynamic Disk:
Provides a dynamic disk to a basic disk cannot be created across multiple disks (spanned and striped volumes), volume, and create fault-tolerant volumes (mirrored and RAID-5 volumes) ability to function. As a basic disk to a dynamic disk MBR or GPT partition style supports can be used on both systems. All volumes on dynamic disks are called dynamic volumes. Dynamic disks offer greater flexibility for volume management, because they use a database to track the dynamic volumes on the disk and other dynamic disks in the computer information. Because each dynamic disk on each copy of the dynamic disk database stored in the computer, such as a damaged dynamic disk database can use the database on another dynamic disk to repair a dynamic disk. The location of the database to determine the partition style of the disk. The MBR partition, in the last 1 megabyte (MB) disk containing the database. GPT partitions, in a 1-MB reserved (hidden) partition containing the database.
Dynamic disks are allowed to have non-contiguous extents in the volume on one or more physical disk volume management in a separate form. Dynamic disks and volumes depend on the logical disk manager (LDM) and virtual disk service (VDS) and its associated functions. These features enable you to perform tasks, for example, to convert basic disks to dynamic disks, and create fault-tolerant volumes. In order to encourage the use of dynamic disks, multiple-partition volumes supports basic disks, deleted, and is now fully supported on dynamic disks.
Only on a dynamic disk, you can perform the following actions:
- Create and delete simple, spanned, striped, mirrored, and RAID-5 volumes.
- Extend a simple or spanned volume.
- Remove a mirror from a mirrored volume or break the mirrored volume into two volumes.
- Repair mirrored or RAID-5 volumes.
- Reactivate a missing or offline disk.
Another difference is that basic disks and dynamic disks dynamic disk volumes can consist of a set of one or more physical disks are composed of contiguous extents. In contrast, volumes on basic disks by disk on contiguous extents. Due to the location and amount of disk space that is required by the LDM database, Windows does not convert basic disks to dynamic disks unless there is at least 1 MB of unused space on the disk.
Regardless of whether the dynamic disk system uses the MBR or GPT partition style, you can create up to 2000 dynamic volumes on your system, although the recommended number of dynamic volumes is 32 or less. For more information and other considerations for working with dynamic disks and volumes, see dynamic disks and volumes.
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