To extend a simple or spanned volume

Using the Windows interface

1.

Open Computer Management (Local) 

2.

In the console tree, click Disk Management.

Where?

Computer Management (Local) > Storage > Disk Management

3.

Right-click the simple or spanned volume you want to extend, click Extend Volume, and then follow the instructions on your screen.

Note

To open Computer Management, click Start, and then click Control Panel. Click Performance and Maintenance, click Administrative Tools, and then double-click Computer Management

You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure. 

You can extend a volume only if it does not have a file system or if it is formatted using the NTFS file system You cannot extend volumes formatted using FAT or FAT32 

You cannot extend a system volume or boot volume 

You can extend simple or extended volumes that are not system or boot volumes, as long as there is available disk space. This includes volumes created as dynamic volumes or created as basic volumes and then converted to dynamic on Windows XP or .

You cannot extend striped volumes, mirrored volumes, or RAID-5 volumes 

If you upgraded from Windows 2000 to Windows XP or , you cannot extend a simple or spanned volume that was originally created as a basic volume and converted to a dynamic volume on Windows 2000.

You can extend a simple volume onto additional dynamic disks to create a spanned volume Spanned volumes cannot be mirrored or striped.

If you extend a spanned volume, you cannot delete any portion of it without deleting the entire spanned volume.

Using a command line

1.

Open Command Prompt

2.

Type:

diskpart

3.

At the DISKPART prompt, type:

list volume

Make note of the number of the simple volume you want to extend onto another disk.

4.

At the DISKPART prompt, type:

select volume n

Selects the simple volume, n, you want to extend onto another disk.

5.

At the DISKPART prompt, type:

list disk

Make note of the number of the disk that you want to extend the simple volume onto.

6.

At the DISKPART prompt, type:

extend [size=n] [disk=n]

Extends the selected volume onto disk n, and make the extension size=n megabytes (MB) in size.

ValueDescription

list volume

Displays a list of basic and dynamic volumes on all disks.

select volume

Selects the specified volume, where n is the volume number, and shifts the focus to it. If no volume is specified, the select command lists the current volume with focus. You can specify the volume by number, drive letter, or mount point path. On a basic disk, selecting a volume also gives the corresponding partition focus.

list disk

Displays a list of disks and information about them, such as their size, amount of available free space, whether the disk is a basic or dynamic disk, and whether the disk uses the master boot record (MBR) or GUID partition table (GPT) partition style. The disk marked with an asterisk (*) has focus.

extend

Extends the volume with focus into next contiguous unallocated space. For basic volumes, the unallocated space must be on the same disk as, and must follow (be of higher sector offset than) the partition with focus. A dynamic simple or spanned volume can be extended to any empty space on any dynamic disk Using this command, you can extend an existing volume into newly created space.

If the partition was previously formatted with the NTFS file system, the file system is automatically extended to occupy the larger partition. No data loss occurs. If the partition was previously formatted with any file system format other than NTFS, the command fails with no change to the partition.

You cannot extend the current system or boot partitions.

disk=n

The dynamic disk on which to extend the volume. An amount of space equal to size=n is allocated on the disk. If no disk is specified, the volume is extended on the current disk.

size=n

The amount of space, in megabytes (MB), to add to the current partition. If you do not specify a size, the disk is extended to take up all of the next contiguous unallocated space.

Note

To open command prompt, click Start, point to All Programs, point to Accessories, and then click Command Prompt

You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure. 

You can extend a volume only if it does not have a file system or if it is formatted using the NTFS file system You cannot extend volumes formatted using FAT or FAT32 

You cannot extend a system volume or boot volume 

You can extend simple or extended volumes that are not system or boot volumes, as long as there is available disk space. This includes volumes created as dynamic volumes or created as basic volumes and then converted to dynamic on Windows XP or .

You cannot extend striped volumes, mirrored volumes, or RAID-5 volumes 

If you upgraded from Windows 2000 to Windows XP or , you cannot extend a simple or spanned volume that was originally created as a basic volume and converted to a dynamic volume on Windows 2000.

You can extend a simple volume onto additional dynamic disks to create a spanned volume Spanned volumes cannot be mirrored or striped.

If you extend a spanned volume, you cannot delete any portion of it without deleting the entire spanned volume.

For more information about DiskPart, see Related Topics.

Related Topics

DiskPart

Dynamic disks and volumes

Using spanned volumes

Using simple volumes

Delete a dynamic volume

Assign, change, or remove a drive letter

Format a dynamic volume

Create a mounted drive



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