Technical information

9871 Tenth Edition 3-7
Powering off the Cartridge Subsystem
■ Powering off the Cartridge Subsystem
Note: The 9840/T9940 drive power switch is not accessible because the drive
in located inside a locked cabinet.
4480/4490 Cartridge Subsystem
CAUTION:
LOSS OF DATA. Pressing the EPO switch starts an uncontrolled power
off and might cause a loss of data. USE THE EPO SWITCH ONLY IN AN
EMERGENCY.
To power off a cartridge subsystem in an emergency:
1. Press the
EPO switch on the control unit, as shown in Figure 3-4.
2. Notify Customer Support Services to dispatch a service representative to
restore power to the subsystem as described in Chapter 4, “Obtaining
Support.”
Figure 3-4. Cartridge Subsystem EPO Switch
4480
C
4
0357
EPO
SWITCH