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5-24 Running the Array Configuration Utility
Writer: Rickard Project: Compaq Smart Array 3200 Controller Reference Guide Comments: 340862-002
File Name: F-CH05.DOC Last Saved On: 12/7/98 1:22 PM
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Controller Settings Screen
Use the Controller Settings screen to select the operating system and set the
Rebuild Priority, Expand Priority, and Accelerator Ratio. Rebuild and Expand
priority settings will not affect an idle system, but they will affect performance
on a busy system.
Figure 5-20. Controller Settings screen
The Rebuild Priority affects the amount of time the controller spends rebuilding
data after a failed drive has been replaced. Select High if rebuilding data should
take precedence over handling requests from the operating system. Select Low
if the controller should rebuild data only when it is idle.
The Expand Priority affects when the controller moves data after you have
chosen to expand the capacity of an array. Select High if expanding the array
capacity should take precedence over handling requests from the operating
system. Select Low if the controller should expand the array capacity only when
it is idle.
The Accelerator Ratio determines the amount of memory allocated to the read
and write caches. Some applications may perform better with a larger write
cache; others may perform better with a larger read cache.