HP NetRAID 1Si Controller - Manual (Page 109)

Chapter 5 Reconstructing and Rebuilding Drives
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Changing the Autorebuild Setting
The default setting for Autorebuild is enabled, so you normally do not need to
change it. However, if you want to change this parameter, follow these
instructions:
1. Log off all users, close all applications, and power down the HP NetServer.
2. Restart the server. Look for the following prompt during startup:
Option: Experienced users may press <Ctrl> <M> for
HP NetRAID Express Tools now.
Firmware Initializing
3. Press <Ctrl> <M>. When the system stops scanning, HP NetRAID
Express Tools starts.
4. If you have more than one adapter, choose Select Adapter from the Tools
Management menu, and then select the adapter for which you want to
change the Autorebuild setting.
5. Choose Objects from the Tools Management menu.
6. Choose Adapter from the Objects menu.
7. Choose Autorebuild to change the setting.
8. If the Autorebuild parameter must be changed on another adapter, press
Esc to back up to the Tools Management menu. Then repeat Steps 4
through 7 for that adapter.
9. When you have changed the Autorebuild settings on all adapters, press Esc
repeatedly to back up to the Tools Management menu.
10. If you want to view or change the Rebuild Rate, you can do so now. For
complete information, see "Changing the Rebuild Rate" next in this
section.
11. To exit HP NetRAID Express Tools, press Esc at the Tools Management
menu. Choose Yes at the prompt. You must then reboot the HP NetServer.
Changing the Rebuild Rate
During a rebuild, the contents of a complete physical drive is rewritten. Normal
operations can go on during a rebuild, but performance may be degraded. The
Rebuild Rate controls the rate at which a rebuild is done. A high Rebuild Rate
(over 50%) speeds up the rebuild, but slows system performance. A low Rebuild
Rate (under 50%) slows the rebuild process, but speeds up system performance.
The default setting for the Rebuild Rate is 50%.