Turning The Power On After An Emergency Shutdown; Turning The Power Off - Silicon Graphics TP9400 RAID Owner's Manual

3: Controller Enclosure Operation

Turning the Power On After an Emergency Shutdown

Turning the Power Off

34
Use this procedure to regain normal system operation after a power failure or emergency
shutdown.
1. After the emergency situation is over or power is restored to the building, remove
the rear access panel on the rack and check all components and cables for damage.
Warning:
Risk of electrical shock! Never turn on the power to any equipment if
there is evidence of fire, water, or structural damage. If there is evidence of
damage, call the factory or appropriate service organization for assistance.
Depending on the current service agreements, you may or may not need to return
the unit for repair/replacement.
Note: To speed drive spin-up, it is recommended that you start the drive enclosures
before or at the same time as the controller enclosure. If you plan to use the main
breaker to turn on all enclosures at the same time, make sure that the switches on
each drive enclosure and each controller enclosure are on before turning on the main
breaker. For instructions on powering-up the drive enclosures, refer to the drive
enclosure documentation.
2. Turn on the power (Figure 3-2 on page 31).
a. If only the rack power is off, check the circuit breaker in the rack and make
certain it is on.
b. Turn on the power switches on all drive enclosures attached to the controller
enclosure.
c. Turn on both power switches on the rear of the controller enclosure (Figure 3-2).
You must turn on both switches to take advantage of the redundant power
supplies. Then, go to "Checking the Controller Enclosure Indicator Lights" on
page 36.
Use this procedure to turn off the controller enclosure power. The controller enclosure is
designed to run continuously, 24 hours a day. Once you turn on the controller enclosure,
it should remain on except during certain service procedures.
007-4304-003