HP LeftHand SAN Solutions Support Document - Application Notes - Best Practices for Enabling Microsoft Windows with SAN/iQ®

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DISKPART> select volume # (where # is the volume’s
corresponding number)
DISKPART> extend filesystem
Note: The extend filesystem command is not currently documented in
the Diskpart.exe Help file.
Other Disk Management Tools
Some environments do not utilize the default Windows Logical Disk Manager
tool in order to manage their storage. Some examples of alternative tools are
Dell Array Manager and VERITAS Volume Manager. Both of these disk
management tools use a utility called Extpart.exe instead of Diskpart.exe.
Extpart.exe commands are very similar to those of Diskpart.exe with the only
major differences being instead of selecting the volume number in step 3
above, the drive letter will be selected, and you must input the amount of
added capacity by which the volume will be extended. Extpart.exe and
corresponding documentation can be downloaded from www.dell.com
Additional Documentation
• Diskpart Command Reference http://www.microsoft.com/resources/
documentation/windows/xp/all/proddocs/enus/diskpart.mspx
• How to Use Diskpart.exe to Extend a Data Volume – describes how to use
the Diskpart.exe command-line utility to extend a data volume into
unallocated space. http://support.microsoft.com/
default.aspx?scid=kb;EN-US;325590
• The Partition Size is Extended, but the File System Remains the Original
Size when you Extend an NTFS Volume http://support.microsoft.com/
default.aspx?scid=kb;EN-US;832316