Adaptec 2930U User Guide - Page 59

Advanced Configuration Options

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Configuring the SCSI Card 2930CU with SCSISelect SCSI device, use the maximum value of 20.0. If your device is not Ultra SCSI, select a transfer rate of 10.0. I Enable Disconnection-When set to Yes, allows the SCSI device to disconnect from the SCSI bus. Leave the setting at yes if two or more SCSI devices are connected to the SCSI card. If only one SCSI device is connected, change the setting to No for slightly better performance. I Send Start Unit Command-When set to Yes, sends the Start Unit Command to the SCSI device at bootup. I BIOS Multiple LUN Support-Determines whether booting from a SCSI drive that has multiple LUNs is supported. Enable this option if your boot drive has multiple LUNs. Advanced Configuration Options Note: Do not change the Advanced Configuration Settings unless absolutely necessary. I Plug-and-Play SCAM Support-When set to Enabled, the SCSI card automatically assigns SCSI IDs to SCSI devices that support the SCAM protocol (see page A-2). The default is Disabled, but you can set it to Enabled even if you have a non-SCAM device. I Reset SCSI Bus at IC Initialization-When set to Enabled, the SCSI card generates a SCSI bus reset during its power-on initialization and after a hard reset. I Host Adapter BIOS-Enables or disables the SCSI card BIOS. I Set to Enabled if you boot from a SCSI hard disk drive or a CD-ROM drive connected to the SCSI card. I Set to Disabled if the devices on the SCSI bus (for example, CD-ROM drives) are controlled by software drivers and do not need the BIOS. I Support Removable Disks Under BIOS as Fixed Disks- Determines which removable-media drives are supported by the SCSI card BIOS. I Boot Only-Only the removable-media drive designated as the boot drive is treated as a hard disk drive. B-5

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B-5
Configuring the SCSI Card 2930CU with SCSISelect
SCSI device, use the maximum value of 20.0. If your device is
not Ultra SCSI, select a transfer rate of 10.0.
■
Enable Disconnection
—When set to
Yes
, allows the SCSI
device to disconnect from the SCSI bus. Leave the setting at yes
if two or more SCSI devices are connected to the SCSI card. If
only one SCSI device is connected, change the setting to
No
for
slightly better performance.
■
Send Start Unit Command
—When set to
Yes
, sends the Start
Unit Command to the SCSI device at bootup.
■
BIOS Multiple LUN Support
—Determines whether booting
from a SCSI drive that has multiple LUNs is supported. Enable
this option if your boot drive has multiple LUNs.
Advanced Configuration Options
Note:
Do not
change the Advanced Configuration Settings
unless absolutely necessary.
■
Plug-and-Play SCAM Support
—
When set to
Enabled
, the SCSI
card automatically assigns SCSI IDs to SCSI devices that support
the SCAM protocol (see
page A-2
). The default is
Disabled
, but
you can set it to
Enabled
even if you have a non-SCAM device.
■
Reset SCSI Bus at IC Initialization
—When set to
Enabled
, the
SCSI card generates a SCSI bus reset during its power-on
initialization and after a hard reset.
■
Host Adapter BIOS
—Enables or disables the SCSI card BIOS.
■
Set to
Enabled
if you boot from a SCSI hard disk drive or a
CD-ROM drive connected to the SCSI card.
■
Set to
Disabled
if the devices on the SCSI bus (for example,
CD-ROM drives) are controlled by software drivers and do
not need the BIOS.
■
Support Removable Disks Under BIOS as Fixed Disks
—
Determines which removable-media drives are supported by
the SCSI card BIOS.
■
Boot Only
—Only the removable-media drive designated as
the boot drive is treated as a hard disk drive.