IBM 71453RU manual Turning on the memory expansion module, Turning off the memory expansion module

Turning on the memory expansion module

The memory expansion module is controlled by the server. Turning on the memory expansion module refers to connecting the memory expansion module power cord to the power source and pressing the power-control button on the host server. The host server must be connected to the memory expansion module and configured to identify the memory expansion module. Normally, when the operating system on the server starts, the server issues a power-on request to the memory expansion module.

Turning off the memory expansion module

The memory expansion module is turned off only if the connected server issues a power-off request and you disconnect the memory expansion module power cord from the power source. You cannot turn off the memory expansion module manually.

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.

You can disconnect the memory expansion module power cords from the power source to shut off all power immediately without damaging the memory expansion module, but it might cause an unrecoverable error and loss of data on the connected server.

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