HP NetRAID-4M Installation Guide

A-3
Using the BIOS SCSISelect and Disk Utilities
Exiting SCSISelect
To exit SCSISelect, press Esc until a message prompts you to exit (if
you changed any host adapter settings, you are prompted to save
the changes before you exit). Select Yes to exit and reboot the
system. Any changes you made in SCSISelect take effect after the
server boots.
Using the Controller Configuration Utility
To access the Controller Configuration Utility, select the Controller
Configuration option from the menu that appears after starting
SCSISelect.
The following settings are the controller settings most likely to
require any modification.
■ Drives Write Cache — This option allows you to enable or
disable the write-back cache feature of all SCSI disk drives
connected to the controller. If Disabled, the controller will
disable the write-back cache of all attached drives. If Enabled,
then the controller will enable the write-back cache of all
attached drives. If Drive Default, then the controller will not
change the write-back cache setting of any attached drives. The
default is Disabled.
Caution: Disk drives with write-back cache enabled do
not have the benefit of battery protection and could
lose or corrupt data as a result of unexpected power
loss or drive removal.
Note: Certain controllers may not support drives write
cache. In those cases where drives write cache is not
supported, setting the option to Enabled has no effect.
Note: Drives write cache cannot be enabled on a
controller channel that is attached to a shared SCSI
channel.
!