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Notes:
1. Within 2 minutes after power has been connected to the BladeCenter T unit, the
management module applies power to the I/O modules.
2. If a power failure occurs, the BladeCenter T unit restarts automatically when
power is restored.
3. The blade-server power button turns on or turns off the blade server if local
power control has not been disabled through the management module.
4. The blade-server power button turns on the blade server only if the green power
light on the blade server is flashing slowly. If the light flashes rapidly, the blade
server has not yet synchronized with the management module, and pressing the
power button will have no effect. See “Media tray” on page 11 for more
information about the controls and indicators on the BladeCenter T unit
modules.
See
the Installation and User’s Guide for your blade server on the IBM
Documentation CD that comes with the blade server for the location of the blade
server LEDs.
Shutting down the BladeCenter T unit
You can shut down the BladeCenter T unit by turning off the blade servers and
disconnecting the BladeCenter T unit from the power source.
Complete the following steps to shut down the BladeCenter T unit.
1. See your blade server operating-system documentation for the procedure to
shut down the operating system in the blade servers; then, shut down each
operating system.
2. Press the power-control button on the front of each blade server. Wait until the
solid green power LED on the blade server goes to a slow flash indicating that
the blade server drives have stopped spinning.
Statement 5:
CAUTION:
The power control button on the device and the power switch on the
power supply do not turn off the electrical current supplied to the device.
The device also might have more than one power cord. To remove all
electrical current from the device, ensure that all power cords are
disconnected from the power source.
1 2
Note: The BladeCenter T Type 8720 and 8730 units do not have a power
switch. The units also have more than one connection to power. To
remove all electrical current from the unit, make sure that all connections
to input power are disconnected at the power input terminals or
connectors.
3. If you have a BladeCenter T Type 8720 (dc-power) unit, disconnect the unit
from the input power at the dc power distribution panel by switching the circuit
Chapter 1. General information 21