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XVME-956 Manual
August 1994
Partitioning and Formatting
The DOS FDISK program is used to partition drives installed under the BIOS. The DOS FORMAT
program is used to format drives installed under the BIOS. Use the /S option of the format program if
the SCSI drive is to be the boot device. D o not use the AFDISK utility provided with the drivers, this
is for driver usage only.
I f the drive was previously partitioned with a utility other than FDISK, it may be necessary to delete
the partitions with that utility before repartitioning the drive with FDISK. This is true for the driver
utility AFDISK as well. Failure to observe this can prevent a SCSI drive from booting properly, even
though it appears to be configured correctly.
4.4 B O O T I N G FROM A SCSI DRIVE AND INSTALLING DRIVERS ON THAT DEVICE
To create a system which boots from a SCSI drive yet also allows removable media or three drives in
the system, perform the following steps:
1. B o o t from the first SCSI drive following directions in Section 4.3, Bios Operation.
2. Install the software drivers as outlined in Section 4.2, Driver Operation.
3. Ensure that the target number of the SCSI device to be installed under drivers is greater
than 1:0, i.e. with the SCSI drives: the boot SCSI drive should be 0:0 and the drive to be
installed under drivers should b 2:0. This usually requires a jumper configuration on the
second SCSI drive.
4. Ensure SW2 positions 1, 2, and 3 are set to the desired BIOS address.
5. Ensure all driver parameters agree with the switch settings.
4.5 S C S I CABLE INSTALLATION
The SCSI devices communicate through the SCSI bus which is a 50 pin flat cable. There will be
between two and eight devices on the bus.
Pin one needs to be oriented properly on each SCSI device. A 50 pin connector is provided through
the module's front panel. P i n one is located at the top of the connector when the module is mounted
into a VMEbus system. Check the manuals for the proper orientation of pin one on the other SCSI
devices connected to the bus.
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