HP LH4r Installation and configuration of the HP NetRAID, NetRAID-1 and NetRAI - Page 97

Setting Up Your Array for Capacity Expansion

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Chapter 7 Preparing for Online Capacity Expansion Setting Up Your Array for Capacity Expansion This section makes the following assumptions: • You have already installed your drives and configured your adapter as discussed in Chapter 4. You should have created only one logical drive per array. For example, you might have four physical drives of 4 GB each connected to the adapter. You might have configured these four drives as a single RAID 5 logical drive. This produces a logical drive with 12 GB of real storage capacity, with 4 GB used for parity. • You have initialized your logical drives. NOTE It is important to initialize your logical drives because, if the drives have been previously configured under an operating system, there may be residual partition/format information that can subsequently cause misrepresentation of logical drives under the Windows NT Disk Administrator. • You have already installed Windows NT as discussed in Chapter 5. 1. Enable Virtual Sizing. 1. Restart the host HP NetServer, and watch for the message: Option: Experienced users may press for HP NetRAID Express Tools now. Firmware Initializing 2. While the message is flashing, press . When the system stops scanning, HP NetRAID Express Tools starts and displays the Tools Management menu. 3. If there is more than one HP NetRAID Series adapter, do the following to select the adapter controlling a logical drive you want to prepare for expansion: a. Choose Adapter from the Tools Management menu. b. Choose the adapter controlling the logical drive. 4. Choose Objects from the Tools Management menu. 5. Choose Logical Drive from the Objects menu. 89

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Chapter 7
Preparing for Online Capacity Expansion
89
Setting Up Your Array for Capacity Expansion
This section makes the following assumptions:
•
You have already installed your drives and configured your adapter as
discussed in Chapter 4. You should have created only one logical drive
per array.
For example, you might have four physical drives of 4 GB each connected
to the adapter. You might have configured these four drives as a single
RAID 5 logical drive. This produces a logical drive with 12 GB of real
storage capacity, with 4 GB used for parity.
•
You have initialized your logical drives.
NOTE
It is important to initialize your logical drives because, if the
drives have been previously configured under an operating
system, there may be residual partition/format information
that can subsequently cause misrepresentation of logical drives
under the Windows NT Disk Administrator.
•
You have already installed Windows NT as discussed in Chapter 5.
1.
Enable Virtual Sizing.
1.
Restart the host HP NetServer, and watch for the message:
Option: Experienced users may press <Ctrl> <M> for
HP NetRAID Express Tools now.
Firmware Initializing
2.
While the message is flashing, press <Ctrl> <M>. When the system stops
scanning, HP NetRAID Express Tools starts and displays the Tools
Management menu.
3.
If there is more than one HP NetRAID Series adapter, do the following to
select the adapter controlling a logical drive you want to prepare for
expansion:
a. Choose
Adapter
from the Tools Management menu.
b.
Choose the adapter controlling the logical drive.
4.
Choose
Objects
from the Tools Management menu.
5.
Choose
Logical Drive
from the Objects menu.