Integrated HP NetRAID Controller Config. Guide

Chapter 4 Planning
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• For each array, automatic configuration looks to see if you have asked to
implement redundancy (checked the Redundancy box). If you are not
using redundancy, all logical drives are assigned RAID level 0.
• If an array contains two drives and you checked Redundancy, the logical
drive is assigned RAID level 1.
• If a group contains three to five drives and you checked Redundancy, the
logical drive is assigned RAID level 5.
• If an array contains only one drive, the logical drive is assigned RAID
level 0. (No redundancy is possible on a logical drive containing just one
physical drive.)
• Automatic configuration does not create hot spares. You must create your
hot spares before you begin automatic configuration.
CAUTION For HP NetServer LH 3/3r and LH 4/4r, non-hot-swap
devices should not be combined in arrays with hot-swap disk
drives. If your non-hot-swap devices have the same capacity
as your hot-swap disk drives, do not use Automatic mode. See
"Custom Configuration" later in this guide for
recommendations on making best use of your non-hot-swap
devices.
If Automatic configuration will suit your needs, you can proceed to Chapter 5,
"Configuration." However, you are encouraged to read the entire planning section
to determine whether or not a custom configuration would better meet your
needs.
Custom Configuration
To plan a custom configuration, you will do the following:
• For HP NetServer LH 3/3r and LH 4/4r with integrated HP NetRAID
enabled for SCSI B, plan for any non-hot-swap devices on SCSI B
• For HP NetServer LT 6000r, plan for any non-hot-swap devices on SCSI
B
• Plan your arrays
• Plan hot spares