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Extend a Volume

Applies To: Windows Server 2008 R2

You can use Share and Storage Management to allocate more storage space for an existing volume by extending it.

Extending a volume requires the following:

  • If the volume was created on a local disk:

    • The disk that hosts the volume must have free space available.

    • There cannot be another volume on the disk located immediately after the volume that you want to extend (that is, the volume to extend must be the last volume on the disk).

  • If the volume was created on a storage subsystem:

    • If the LUN that the volume resides on needs to be extended, free space must be available on the subsystem.

    • The volume must be the last partition on the LUN, or the LUN immediately following the volume to be extended must have non-allocated free space available.

Membership in Administrators, or equivalent, is the minimum required to complete this procedure. Review details about using the appropriate accounts and group memberships at http://go.microsoft.com/fwlink/?LinkId=83477.

To extend a volume
  1. On the Volumes tab, click the volume that you want to extend.

  2. In the Actions pane, click Extend.

  3. In the Extend Volume dialog box, specify the new size, and then click OK.

Additional considerations

  • If the volume was created on a storage subsystem, extending the volume automatically extends the LUN associated with the volume, if necessary.

  • To open Share and Storage Management, click Start, point to Administrative Tools, and then click Share and Storage Management.

Additional references

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