BUILT-IN SYMBIOS SCSI BIOS
BIOS, Driver & Utility Guide
35
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Adapter Setup
: Adapter settings are viewed and changed.
SYM53C860
Adapter Setup
SCAM Support
Off
Parity
On
Host SCSI ID
7
Scan Order
Low to High (0..Max)
Removable Media Support
None
CHS Mapping
SCSI Plug and Play Mapping
Spinup Delay (Secs)
2
Help
Restore Default Setup
Exit this menu
SCAM Support -
SCAM (SCSI Configured AutoMatically) is the SCSI Plug and
Play protocol supported by Symbios BIOS version 4.X.
Parity -
The Symbios host adapters always generate parity, but some SCSI devices
do not. Therefore, you are offered the option of disabling parity checking.
Note
:
When disabling parity checking, it is also necessary to disable disconnect for
all devices, as parity checking for the reselection phase will not be disabled. If
a device does not supporting parity disconnects, the I/O will never complete
because the reselection phase will halt.
Host SCSI ID -
The host adapter SCSI ID should remain on 7 (default), as this
setting gives the adapter the highest priority on the SCSI bus. However, if you
have two adapters on the same SCSI bus, you should give one of them an
unassigned ID to avoid duplication of SCSI IDs.
Scan Order -
This option allows you to tell the host adapter BIOS and your device
drivers to scan the SCSI bus from low to high (0 to max) SCSI IDs, or from
high to low (max to 0) SCSI IDs. If you have more than one device on the
SCSI bus, changing the scan order changes the order in which drive letters are
assigned by the system.
Removable Media Support -
Determine if the removable media will be used as
BIOS device. A BIOS device here is a device that can be controlled via BIOS
INT 13H, i.e. 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.
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