Removing/Replacing A Power Supply (Primary And Redundant); Power Supplies In A Control Module - IBM System Storage TS3310 Setup And Operator Manual

8. Click on the upgrade firmware link provided, then browse to locate the

Removing/Replacing a Power Supply (Primary and Redundant)

Figure 12-19. Power supplies in a control module
Library power is controlled at the individual power supplies and at the front panel
of the library. The switch on the rear of each power supply controls power for the
library (Note: Power supplies remained powered ON.). The button on the front of
the control module controls power for all control module and expansion module
power supplies.
A second (redundant) power supply helps ensure that your library does not lose
power (and become inaccessible) if the primary power supply should happen to
fail. The library automatically switches to the redundant power supply if the
primary power supply fails for any reason.
A redundant power supply should be connected to a different AC circuit from the
primary power supply. Even better, the redundant power supply should be
connected to a separate power distribution source. In the event that the primary
power supply fails or becomes unstable, the redundant power supply will
automatically power the library as long as it is turned ON.
If your library has a redundant power supply, you can replace the primary power
supply without powering OFF the library. If your library does not have a
redundant power supply installed, the empty slot will be covered by a metal plate.
12-24
TS3310 Tape Library Setup and Operator Guide
firmware file. See "Updating Library Firmware" on page 8-12 for detailed
instructions.
1
Primary power supply
1
2
Redundant power supply
2