HP NetRAID 1Si Controller - Manual (Page 141)

Chapter 6 Capacity Expansion
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NOTE Verify that "Basic" is displayed below the disk number to the
left of the existing volume to the left of the unallocated space.
This confirms that the logical drive is in Basic Disk Mode.
If "Dynamic" is displayed, the logical drive is in Dynamic Disk
Mode, and you cannot expand capacity online as described in
this section.
In our example, Select the unpartitioned area, and create a primary
partition of 4 GB.
3. Follow the onscreen instructions to create the new volume with a new
drive letter.
In our example, you now have another drive (say F:) of 4 GB without
rebooting.
4. Exit Disk Management, and begin use of the new capacity on the new
volume.
NOTE If the expanded capacity and the original capacity must share
the same drive letter, you must restart Windows 2000. You
must identify the added capacity as an extended partition, then
select the original and new (extended) partition. Use the
selection "Extend Partition" to make the two partitions share
the same drive letter (E: for this example). You need to restart
Windows 2000 before any part of E: becomes available again.
Expanding Capacity under Windows 2000 with Virtual Sizing
Enabled
CAUTION Back up your data before you begin this procedure. You will
repartition the logical drive and destroy the data in it.
If you already are using a logical drive with Virtual Sizing enabled, but now wish
to add capacity to it, you must restart the HP NetServer to run HP Express Tools
to disable Virtual Sizing.
If the logical drive has already been used, you need to back up the data, disable
Virtual Sizing, install additional capacity, reconstruct the logical drive, repartition
and create the new volume, and restore the data. Now the logical drive can be
expanded online whenever required.