HP NetRAID 1Si Controller - Manual (Page 94)

Chapter 4 HP NetRAID Express Tools
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#Stripes The number of stripes (physical drives) in the associated
physical array
StrpSz The stripe size
DriveState The state of the logical drive
5. To set the RAID level for the logical drive, highlight RAID and press
Enter. The available RAID levels for the current logical drive are
displayed. Select a RAID level and press Enter to confirm.
6. Set the stripe size, Write policy, Read policy, and Cache policy from the
Advanced Menu.
•
Stripe size: This parameter specifies the size of the segments written to
each disk in a RAID logical drive.
•
Write Policy: This option sets the caching method to Write-Back or
Write-Through.
•
Read-Ahead: This option enables the SCSI Read-Ahead feature for the
logical drive. You can set this parameter to Normal, Read-Ahead, or
Adaptive.
•
Cache Policy: This parameter sets read cache operation during data
transfers involving the selected logical drive.
(For definitions of the Write policy, Read policy, Cache policy, and their
options, see the "Glossary.")
Press Esc to exit the Advanced Menu.
7. When you have defined the current logical drive, highlight Accept and
press Enter. The array selection window appears if there are any
unconfigured disk drives left.
8. Repeat Steps 3 through 7 to configure another array and logical drive. You
can configure up to eight logical drives per adapter. When you finish
configuring logical drives, press Esc to exit Easy Configuration. A list of
the currently configured logical drives appears.
After you respond to the Save prompt, you return to the Configure menu.
9. Initialize the logical drives you have just configured. See "Initializing
Logical Drives" in this chapter for more information.
Creating Arrays by Using New Configuration
The New Configuration option allows you to associate logical drives with partial
arrays and/or multiple physical arrays (array spanning).