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This soft copy for use by IBM employees only.
The SCSI-2 Fast and Wide Adapters issue the start unit command to each
drive one at a time. The SCSI-2 Fast/Wide Streaming RAID adapter issues
the start unit command to two drives at a time.
Note
In order to take advantage of this option, verify that the autostart jumpers
have been removed on hard drives. Otherwise, the drives will spin up
twice: once at Power on Reset (POR) time and again when the adapter
sends the start unit command.
5 Include in BIOS SCAN
This option determines whether the host adapter BIOS supports devices
attached to the SCSI bus without the need for device driver software. When
set to Yes, the host adapter BIOS controls the SCSI device. When set to No,
the host adapter BIOS does not search the SCSI ID.
Notes:
1. The Send start unit and Include in BIOS Scan options have no effect if BIOS
is disabled in the Advanced Configuration Options panel (see Figure 10).
2. Disabling the host adapter BIOS frees up 8-10 KB memory address space
and can shorten boot-up time, but you should only disable this option if the
peripherals on the SCSI bus are all controlled by device drivers and do not
need the BIOS (for example, a CD-ROM).
After completing the device configuration, there are a few more parameters that
need to be configured. To do this:
•
Press ESC to quit the SCSI Device Configuration menu.
•
Use the arrow keys to select the Advanced Configuration Options menu.
•
Press Enter.
A panel similar to the one in Figure 10 will appear.
┌───────────────────── Advanced Configuration Options ────────────────────────┐
│ │
│ │
│ Reset SCSI Bus at IC Initialization Enabled │
│ │
│─── Options listed below have NO EFFECT if the BIOS is disabled──────────────│
│ │
│ Host Adapter BIOS (configuration utility reserves BIOS space) Enabled │
│ Support Removable disks under BIOS as Fixed Disks Boot only │
│ Extended BIOS translation for DOS drives > 1 GByte Enabled │
│ Display <Ctrl-A> message during BIOS initialization Enabled │
│ Multiple LUN support Disabled │
│ BIOS support for bootable CD-ROM Enabled │
│ BIOS support for Int13 Extensions Enabled │
│ Support for Ultra SCSI speed Enabled │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
└─────────────────────────────────────────────────────────────────────────────┘
Figure 10. PC Server 320 SCSISelect Utility Program - Advanced Configuration
To modify the settings on this panel:
16 PC Server and Windows NT Integration Guide