HP NetRAID 1Si Controller - Manual (Page 131)

Chapter 6 Capacity Expansion
125
Precautions
When using the Online Capacity Expansion feature, it is important that you do not
create volumes that exceed the actual physical capacity. If you attempt to do this
under Windows NT, the format operation will fail. If you extend an existing
partition into virtual space, this is detected upon rebooting. In either case, be sure
to use no more than the actual available physical capacity. Capacity of the logical
drive can be checked with the HP NetRAID Assistant under Windows NT.
The Online Capacity Expansion feature cannot be used if a logical drive spans
multiple arrays. Each array can contain only one logical drive. Reconstruction (for
the purposes of adding a drive to an existing array) can only be done on an array
having a single logical drive. It is also important to plan future storage expansion
into your installation. This will ensure that you can easily expand capacity without
backup/restore operations or reconfiguration.
Preparation Steps for Windows NT
This section repeats information found in the HP NetRAID Series Installation and
Configuration Guide and in the HP NetServer Integrated NetRAID Controller
Configuration Guide. It tells you how to enable Virtual Sizing and set up your
partitions to permit easy capacity expansion.
The following steps are necessary to prepare your array for capacity expansion.
I. Connect disk drives to HP NetRAID
II. Configure HP NetRAID
III. Enable Virtual Sizing in HP NetRAID Express Tools
IV. Start Windows NT and enter the Disk Administrator
V. Partition and format the drive under Windows NT
I. Connect Disk Drives
Connect physical drives to the HP NetRAID Series adapter or integrated
HP NetRAID controller. For example, you might have four drives of 4 GB each
connected to the adapter.
II. Configure HP NetRAID
Configure your HP NetRAID Series adapter or integrated HP NetRAID controller
and create a logical drive. (This can be done in either HP NetRAID Assistant or in
HP NetRAID Express Tools. See Chapter 2, "HP NetRAID Assistant," or
Chapter 4, "HP NetRAID Express Tools," for complete instructions.) Save your
configuration and initialize your logical drives.