Force Computers PENT/CPCI-721, Installation Manual

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SCSI BIOS Features
PENT/CPCI-721 5 - 3
Features
The SCSI BIOS must be enabled if you want the system to boot from a
SCSI hard disk drive connected to the adapter. If the devices on the SCSI
bus are controlled by device drivers and therefore do not need a BIOS,
you can disable the SCSI BIOS to free about 16 KBytes of memory. This
also shortens the boot time by up to 60 seconds.
The SCSI BIOS provides two functions to support user configuration:
• Listing of the actually used SCSI IDs and correlated LUNs
• Setup options to adapt the CPU board and its SCSI configuration to
the user’s needs. The default configuration is marked within SCSI
BIOS Setup.
The SCSI IDs are listed during boot up when entering SCSISelect. You
can list actually assigned SCSI IDs within the BIOS Setup when you se-
lect the SCSI disk utilities from the initial SCSI BIOS Setup screen.
If you need to know the available LUNs, select the SCSI device you
want to configure. If there are multiple logical units, SCSI BIOS displays
a menu of correlated LUNs.
Some Setup options apply to the host adapter; other options apply indi-
vidually to each device on the SCSI bus. In some cases the allowable val-
ue range depends on the actual SCSI bus width used (8-bit or 16-bit).
Some Setup options list the current device settings for each SCSI ID,
even IDs not assigned to a device.