HP StorageWorks Clustered File System 3.6.1 Windows Storage Server Edition administration guide (AG515 - 96007, August 2008)

Chapter 9: Configure PSFS Filesystems 123
Select the filesystem on the Management Console, right-click, and select
Extend Volume. HP Clustered File System then determines whether the
disk contains space that can be used to extend the volume or partition.
On the Extend Basic Volume window, specify the amount of space that
should be added to the filesystem. The “Before” section reports the
current disk space information for the filesystem and the disk. The
“After” section shows this information based on the increased size that
you select.
Because the resize operation is performed offline, the disk containing the
filesystem must be deported from the cluster. After you click OK on the
Extend Filesystem Size window, HP Clustered File System lists all of the
filesystems on the disk that will be deported. Users will not be able to
access these filesystems until the resize operation is complete.
When you click OK on the Confirm Extend window, HP Clustered File
System deports the disk, resizes the filesystem partition by the specified
size, reimports the disk, and then expands the filesystem to fill the
additional space in the partition.