Quantum FastStor 1 User Manual page 23

procedures for resolving the problem.
Step 6. Setting the SCSI Address
The SCSI address is a unique address that identifies the unit connected to the
SCSI bus. The FastStor 1 uses two SCSI addresses or ID's. One is for the loader
robotics controller, and the other is for the tape drive. The SCSI addresses can be
configured through the operator buttons and the display on the front panel. In most
cases the default addresses can be used. The default SCSI address for the
FastStor 1 robotics is 4, and the tape drive has SCSI address set to 5.
To set the SCSI addresses for the FastStor 1 and the built-in tape drive, refer to
SCSI Setup for more information. You may also wish to reserve a magazine slot for
a cleaning cartridge, and set a security password at this time. After some settings
are changed, the FastStor 1 and the drive may require rebooting.
Step 7. Connecting the SCSI Bus Cable
Guidelines before connecting the SCSI cable:
A) Before the SCSI bus cable is connected to the FastStor 1, turn the FastStor
1 power switch off.
B) Make sure your host system is in a state where a new SCSI device can be
safely connected to the SCSI bus.
C) Do not exceed SCSI bus length restrictions.
1. Add the length of all external and internal SCSI cables on the bus.
2. Add 80 cm (31.5 inch) for the internal cable length in the FastStor 1.
3. The maximum allowed length of an LVD SCSI bus is 12 m (39 ft) if the
number of SCSI devices exceeds two.
4. For an SE SCSI bus, be very careful regarding bus length. The normal
combination has an SE bus transfer speed of 160 Mbytes/s with a
maximum bus length of 3 m (9.8ft) and up to 4 SCSI devices connected.
If your SE system operates with a different transfer speed or has more
than 4 SCSI devices, we refer to the actual SCSI standard for complete
bus length restrictions.
D) Before the FastStor 1 is powered on and the system is restarted, make sure
the SCSI bus is properly terminated. If the FastStor 1 terminates the SCSI
bus, ADIC recommends connecting the terminator from the accessory kit
box on the lower SCSI connector on the back plane. See Figure 3.10.
To connect the SCSI bus cable:
1. On the rear of the FastStor 1, attach the device connector of the SCSI cable
to the upper SCSI connector. See Figure 3.10.
FastStor 1 Installation and User Guide 17