Tekram Technology DC-390 Series, Руководство пользователя

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3. CONFIGURING YOUR SCSI CARD
DC-390 Series User’s Manual
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to No, that device must be controlled through device drivers. The two options for More Than
2 Drive Support are as follows:
•
Enabled (default)
Under DOS 5.0 or above, the ability to control up to eight devices, controlled by BIOS INT
13H is provided. Devices controlled could be IDE/ESDI/ST506/SCSI fixed disks, removable
cartridges, and re-writable optical disks (MO).
•
Disabled
When this option is disabled, only the number of drives in your mainboard CMOS setup are
supported without drivers. All other devices such as fixed disks (over two), removable
cartridges, re-writable optical disks (MO), tape streamers, DATs, and CD-ROMs, would
require device drivers. When devices are under the control of BIOS INT 13H, IDE drives
always have higher priorities over SCSI drives. The following is an example describing all
the combinations:
Device Case 0 Case 1 Case 2
IDE HDD 0 none Drive C: Drive C:
IDE HDD 1 none None Drive D:
SCSI Device 0 Drive C: Drive D: (*)
SCSI Device 1 Drive D: (*) (*)
* Number of drives supported by CMOS (2) has been reached. Device driver must be used
for this device.
Case 0:
No IDE drives. Two SCSI drives can be controlled with BIOS INT 13H.
Case 1: One IDE drive is installed as drive C:. One SCSI drive can be controlled
through BIOS INT 13H.
Case 2:
Two IDE drives are installed as C: and D:. Since the maximum number of
drives supported by the CMOS (2) has been reached, no more SCSI device
can be controlled by BIOS INT 13H.
Removable media as BIOS device: Disabled/Boot drive only/All devices.
A BIOS device here is a device that can be controlled via BIOS INT 13H, meaning that it
does not need a device driver and can be bootable. However, when used as a BIOS device,
the full removability of removable media devices is not preserved. The following constraints
apply:
a) The Device can only work as a fixed disk, i.e. media change is not allowed.
b) The Media must be inserted before the system boots-up.
c) Only media with 512 Bytes/sector is supported.