DECstation 5000/260, Руководство оператора, Страница: 184 / 215

11.3 Is It Connected Properly?
Table 11–2 (Cont.) Solutions to Common Problems
Problem Solution
If you have more than one external storage device,
1.
Make sure that all the devices are turned on and the power
outlets they are plugged into are active.
2.
Type cnfg and the number of the slot in which the device is
connected.
If the device does not appear in the configuration display on the
screen, turn off all devices connected to the system unit and then
turn off the system unit. Then check the following:
• Make sure that the SCSI cables are connected to all the
devices in the chain and to the system unit. The SCSI cables
between devices should be 18-inch Digital cables.
• Make sure that a terminator is correctly attached to the
second SCSI connector on the last device in the chain (unless
the device is a TCE, which has an internal SCSI terminator).
• Check the SCSI ID switch settings or SCSI ID display
window on all devices in the chain to make sure that the
SCSI ID of the missing device is unique and within the
range 0 to 6. If not, change the SCSI ID accordingly (see
Chapter 5).
3.
Make sure that you attached no more than three expansion boxes
to a single SCSI connector. If you attached more than this, you
may have exceeded the total allowable cable length for a single
SCSI connector (236 inches or 6 meters) for all SCSI cabling.
(Table 5–1 provides a table with SCSI cable lengths for each
expansion box and explains how to calculate the total cable length
for a group of expansion boxes.)
4.
Turn on the system unit and the devices.
If the problem persists, refer to the manual that came with the
device and to the installation guide for your workstation software.
A red light blinks
rapidly on the front
of your TK50Z tape
drive.
1.
Push the load/unload button four times.
2.
Turn the tape drive off and on once.
(continued on next page)
Troubleshooting 11–13