Adaptec 2268300R 用户手册

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Appendix C: Using the Adaptec RAID Configuration Utility
111
General Controller Settings
Note: 
Default settings are shown in bold type. 
Option
Description
Drive’s Write Cache
When set to Enable All, write cache is enabled on all disk drives on the 
controller. (Enabling the write cache overrides any individual drive 
settings in Adaptec Storage Manager.) When set to Disable All, write 
cache is not used on the disk drives. When set to Drive Specific, write 
cache is enabled/disabled on a per-drive basis in Adaptec Storage 
Manager.
Caution—When write cache is enabled, there is a slight possibility of 
data loss or corruption during a power failure. 
Runtime BIOS
When enabled, the controller BIOS allows the controller to act as a 
bootable device. Disabling the BIOS allows another controller to act as a 
bootable device.
Automatic Failover 
When enabled, the controller automatically rebuilds an array when a 
failed disk drive is replaced. When disabled, the array must be rebuilt 
manually.
Array Background 
Consistency Check
When enabled, the controller constantly verifies a redundant array. Note 
that there may be a significant performance reduction. Default is 
disabled.
Array-based BBS 
Support
When enabled in systems that support BBS, the controller presents 
attached bootable devices up to the BIOS for boot device selection. This 
is relevant for logical arrays. Default is disabled.
SATA Native Command 
Queuing (NCQ)
When enabled, NCQ is enabled. Disable this feature if you want to 
attach more than 48 SATA II disk drives. Only available with SATA II disk 
drives.
Physical Drives Display 
During POST
When enabled, connected disk drives are displayed during system Power 
On Self Test (POST). Displaying the disk drives adds a few seconds to 
the overall POST time. Default is disabled.
DVD/CD-ROM Boot 
Support
When enabled, the system can be booted from a bootable DVD/CD. 
(This setting is not available on all RAID controller models.)
Removable Media 
Devices Boot Support
When enabled, removable media devices, such as CD drives, are 
supported. (This setting is not available on all RAID controller models.)
Alarm Control
When enabled, the alarm sounds. Default is enabled. 
Note—When the alarm is turned off (disabled), it will remain off after a 
reboot.
Default Background 
Task Priority
Sets the default priority for background tasks on the controller (such as 
logical drive creation) to High, Medium, or Low. Default is Medium.
Note—This setting applies to new tasks. It does not affect currently 
running tasks. 
LED Indication Mode
When set to Activity and Fault, the drive activity LEDs blink to indicate
I/O activity (randomly depending on I/O load) and fault (steady 1Hz). 
When set to Fault Only, the drive activity LEDs blink to indicate fault 
state only. For Series 2 and Series 5 controllers, default is Activity and 
Fault. For Series 6/6E controllers, default is Fault Only.