XVME-976 Adapter Module
3-10
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. Do not use the AFDISK utility provided with the drivers,
this is for driver usage only.
If the drive was previously partitioned with a utility other than FDISK, it
may be necessary to delete the partitions with that utility before repartition-
ing 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.
Booting from a SCSI Drive and Installing Drivers on that
Device
1.
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:
2.
Boot from the first SCSI drive following directions in Section, BIOS Operation.
3.
Install the software drivers as outlined in Section, Driver Operation.
4.
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.
5.
Ensure SW2 positions 1, 2, and 3 are set to the desired BIOS address.
6.
Ensure all driver parameters agree with the switch settings.
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 con-
nector is provided through the module's front panel. Pin 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.
The two SCSI devices at each end of the bus need to have terminating
resistors installed for proper operation. All other SCSI devices must have
their terminators removed. The module provides optional termination, in the
form of three sip sockets, with terminating sip resistors installed at the fac-
tory. These are RN3, 4, and 5. Remove these resistor networks if the mod-
ule is not on an end of the SCSI cable.
Another consideration is that of target number assignment. Each device on
the SCSI bus needs to have a unique target number (ID) assigned.
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