Data General AViiON 4600 Series, Customer Documentation

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Setting Up and Installing a SCSI Bus
014–002091
4-11
Installing Configuration Jumpers
The following steps outline how to assign device identifications and operating
parameters to your SCSI-based devices. Refer to Chapter 7 in this manual for
guidelines on how to handle drives and insert or remove jumpers.
1. Refer to your drive documentation for any stand-alone tape and/or disk drives
on your SCSI bus for instructions, and then set the SCSI ID jumpers according to
your SCSI bus plan. Make certain the drive's jumper and/or switch settings
comply with the operating parameters listed in the previous section,
Configuring Device Operating Parameters."
2. Refer to Chapter 7 in this manual, or the unit manual for any peripheral housing
units (such as the Model 10565 Mass Storage Subsystem), for instructions on
how to remove any drive whose device ID conflicts with your SCSI bus plan.
NOTE: Each SCSI drive or SCSI adapter board located in a mass storage
subsystem must have its own unique ID number.
3. Refer to the device-specific documentation for each drive in the subsystem for
instructions, and then set the SCSI ID jumpers according to your SCSI bus plan.
4. Before you replace a drive in your computer unit or subsystem, make certain its
jumper and/or switch settings comply with the operating parameters listed in the
preceding section, Configuring Device Operating Parameters."
5. Replace each drive according to Chapter 7, or the peripheral housing unit
manual.
6. Modify or attach a label that identifies the SCSI ID numbers assigned to the
drive(s) on the outside of the computer unit and each drive or subsystem.
Indicate each drive's location in the unit. Document your configuration in the
worksheet provided in Figure 4Ć4.
NOTE: Step 6 is important for those who will operate and maintain your
system. Your AViiON system software refers to SCSI drives by
identification number and SCSI controller number.