3. CONFIGURING YOUR SCSI CARD
DC-395 Series User’s Manual
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Immediate return on SEEK command: Disabled(default)/Enabled. Enable this option to
bypass the BIOS SEEK command.
Scan all LUN for devices: Disabled(default)/Enabled. Each SCSI ID can have up to eight
Logic Unit Numbers (LUN: 0-7). With this option enabled, all the LUNs for all SCSI IDs on
the SCSI bus will be scanned and recognized as BIOS Devices. If Disabled, only LUN0 of
each SCSI ID will be scanned and recognized as a BIOS device.
Active Negation: Enabled(default)/Disabled. Enable this option to enhance the noise
immunity on the SCSI bus.
Power on RESET SCSI Bus: Enabled(default)/Disabled. When enabled, the SCSI BIOS is
reset upon initialization.
Delay before BIOS scans Device: 3 - 120 seconds. The default is a 3-second delay before
the BIOS starts to scan for SCSI devices during initialization. This amount of time is enough
for most devices to get ready for proper operation. Since some older hard drives may need
more time to spin up, you may need to extend the delay for those devices.
Max number of tagged commands: 2/4/8/16/32 (default). The setting of this option depends
largely on your application software. In general, a larger number of tagged commands results
in better random disk access performance.
Parity Checking: Yes/No. This option defaults to enabled, i.e., Yes. If set to No, the DC-395
won’t perform parity checking. For devices that do not implement the parity function, you
should disable this option.
F2 or F6 Function During Bootup: Disabled/Enabled (default). This setting determines
whether or not the user can access the DC-395’s BIOS via the F2 or F6 keys during system
boot. When disabled, the option to enter the PCU will not be displayed, in which case the
only way to configure the DC-395’s settings will be to run the UTIL.EXE program in the
\DOS directory on the driver diskette. You may want to disable this setting to prevent users
from using potentially damaging functions such as the low-level format.
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