Specifications

Chapter 9 SCSI Setup and Configurations 113
Note: Set Initiate Wide Negotiation to No if you are using
an 8-bit SCSI device that hangs or exhibits other
performance problems with 16-bit data transfer rate
enabled.
• Enable Disconnection—(Default: Yes) When set to Ye s , allows
the SCSI device to disconnect from the SCSI bus. Leave the set-
ting at Yes if two or more SCSI devices are connected to the SCSI
card. If only one SCSI device is connected, changing the setting to
No results in slightly better performance.
• Send Start Unit Command—(Default: Yes ) When set to Ye s, the
Start Unit Command is sent to the SCSI device at bootup.
The following three options have no effect if the SCSI Card BIOS is
disabled. (The SCSI Card BIOS is normally enabled by default.)
• Enable Write Back Cache—(Default: N/C) Can be used to enable
or disable the write-back cache on SCSI disk drives con-nected to
the host adapter. Leave this option at its default setting of N/C (no
change), which usually allows for optimum drive performance.
• BIOS Multiple LUN Support—(Default: No) Leave this set-ting
at No if the device does not have multiple Logical Unit Numbers
(LUNs). When set to Yes , the SCSI card BIOS provides boot
support for a SCSI device with multiple LUNs (for example, a CD
“juke box” device in which multiple CDs can be accessed simulta-
neously).
• Include in BIOS Scan—(Default: Yes) When set to Ye s, the SCSI
card BIOS includes the device as part of its BIOS scan at bootup.
Advanced Configuration Options
Note: Do not change the Advanced Configuration Options
unless absolutely necessary.
• Reset SCSI Bus at IC Initialization—(Default: Enabled) When
set to Enabled, the SCSI card generates a SCSI bus reset during its
power-on initialization and after a hard reset.