3. CONFIGURING YOUR SCSI CARD
DC-395 Series User’s Manual
15
15
•
Booting from a
removable
SCSI device
:
The above applies. Also, the setting
Removable media as
BIOS device (see page 17)
should be set to “Boot drive
only” *
•
Booting from
a SCSI CD-
ROM
:
The setting
Boot From CD-ROM
(see below) must be
“Enabled” (for
CD-Changer
,
Boot Device LUN
may need
additional configuration). This setting takes precedence
over the boot device setting in the mainboard’s BIOS.
(*) Since removable media with 2048 Byte/sector is not supported by the system BIOS,
this type of media won’t be accepted as a Bootable device by the system.
Boot Device LUN:
LUN 0 (default) - 7. If the SCSI device you wish to boot from has a LUN
number other than 0, this option must be set for the specific LUN number in addition to
setting the
Boot Device ID
for the SCSI ID number.
Boot From CD-ROM:
Disabled/Enabled. When
enabled
, the option will be given to boot
from CD-ROMs detected by the controller as bootable. This setting takes precedence over
any settings in the mainboard BIOS such as “boot from IDE”. The
Boot Device ID
and
Boot
Device LUN
(if LUN is not 0) settings can be adjusted to ensure proper operation. If these
options are left on the default, the bootable CD-ROM with the lowest SCSI ID / LUN number
will boot if there is more than one bootable CD-ROM.
Note
: Don’t confuse these settings with the “Boot From CD-ROM” option in the
mainboard’s BIOS setup, which is relevant only to ATAPI CD-ROMs.
INT13 Extension:
Enabled (default)/Disabled. When
enabled
, the DC-395 will support more
than 1024 cylinders for use with operating systems supporting the INT13 Extension. The
conventional INT 13H disk interface supports a maximum of only 1024 cylinders. For
operating systems such as
Win95 OSR2 or later
, supporting
INT13 Extension
, the DC-395
will support
>1024 cylinders
by using the Command Packet Mechanism instead of the
cylinder/head/sector mechanism and thus work with SCSI disks
greater than 8GB
.
•
For operating systems not supporting the INT13 Extension this option will be ignored.
•
This setting is not to be confused with Greater Than 1GB Support, which simply remaps
the device’s parameters to compensate for the 1024 cylinder limit. Greater Than 1GB
Support can handle drives
up to 8GB
in size due to fact that the maximum
cylinders/heads/sectors is 1024/255/63 = 8GB. INT13 Extension supports
drives
beyond
8GB
in supported operating systems by using the Command Packet Mechanism.
Greater Than 1G Support:
Enabled/Disabled. FAT (File Allocation Table) file system
Operating Systems such as DOS have traditionally imposed a barrier on the number of
cylinders supported (1024). The option "Greater Than 1GB Support" in the Tekram BIOS
should be enabled if any device has more than 1024 cylinders IF you are using a FAT file
system (DOS, Windows 3.X, Windows 95). Some Operating Systems such as OS/2 and
Windows NT can use either FAT or HPFS/NTFS respectively. For these Operating Systems,
