HP LH4r Installation and configuration of the HP NetRAID, NetRAID-1 and NetRAI - Page 64

Clear Configuration, Check Rebuild Rate, Assign Global Hot Spares

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Chapter 5 Installation and Configuration Clear Configuration You should clear the configuration of the adapter to prepare it for the new configuration. To clear the existing configuration: 1. Select the Configuration menu. 2. Choose Clear Configuration. 3. Click OK. Check Rebuild Rate During a rebuild, the content 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 performed. 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%. To check the Rebuild Rate from the HP NetRAID Assistant window: 1. Choose Rebuild Rate from the Adapter menu. 2. Reset the rate by dragging the slider with the mouse. 3. Click OK. NOTE Clearing the configuration does not affect the rebuild rate. Assign Global Hot Spares NOTE Refer to Worksheet A when assigning hot spares. To assign any physical drives to the global hot spare pool for the adapter: 1. Click on a Ready physical drive in the Physical Devices box. This drive must have capacity that is at least as great as any drive it will replace. You can select more than one Ready drive if you want to create more than one global hot spare. Clicking on a Ready drive either selects it or deselects it. 2. Drag the selected drives into the global hot spare pool. 56

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Chapter 5
Installation and Configuration
56
Clear Configuration
You should clear the configuration of the adapter to prepare it for the new
configuration.
To clear the existing configuration:
1.
Select the
Configuration
menu.
2.
Choose
Clear Configuration
.
3.
Click
OK
.
Check Rebuild Rate
During a rebuild, the content 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 performed. 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%.
To check the Rebuild Rate from the HP NetRAID Assistant window:
1.
Choose
Rebuild Rate
from the Adapter menu.
2.
Reset the rate by dragging the slider with the mouse.
3.
Click
OK
.
NOTE
Clearing the configuration does
not
affect the rebuild rate.
Assign Global Hot Spares
NOTE
Refer to Worksheet A when assigning hot spares.
To assign any physical drives to the global hot spare pool for the adapter:
1.
Click on a Ready physical drive in the Physical Devices box. This drive
must have capacity that is at least as great as any drive it will replace.
You can select more than one Ready drive if you want to create more than
one global hot spare. Clicking on a Ready drive either selects it or
deselects it.
2.
Drag the selected drives into the global hot spare pool.