IBM SAN Volume Controller 2145-CF8, Hardware Installation Manual

Page: 76 / 101

Locator LED
The SAN Volume Controller does not use the locator LED.
Power button
The power button turns main power on or off for the SAN Volume Controller.
To turn on the power, press and release the power button. You must have a
pointed device, such as a pen, to press the button.
To turn off the power, press and release the power button. For more information
about how to turn off the SAN Volume Controller node, see “MAP 5350: Powering
off a SAN Volume Controller node” in the
IBM System Storage SAN Volume
Controller Troubleshooting Guide .
Attention: When the node is operational and you press and immediately release
the power button, the SAN Volume Controller indicates on its front panel that it is
turning off and writes its control data to its internal disk. This can take up to five
minutes. If you press the power button but do not release it, the node turns off
immediately without the SAN Volume Controller control data being written to
disk. Service actions are then required to make the SAN Volume Controller
operational again. Therefore, during a power-off operation, do not press and hold
the power button for more than two seconds.
Note:
The 2145 UPS-1U does not turn off when the SAN Volume Controller is shut
down from the power button.
Power LED
The green power LED indicates the power status of the SAN Volume Controller.
The power LED has the following properties:
Off One or more of the following are true:
v
No power is present at the power supply input.
v The power supply has failed.
v
The LED has failed.
On The SAN Volume Controller node is turned on.
Flashing
The SAN Volume Controller node is turned off, but is still connected to a
power source.
Select button
Use the select button to select an item from a menu.
The select button and navigation buttons help you to navigate and select menu
and boot options, and start a service panel test. The select button is located on the
front panel of the SAN Volume Controller, near the navigation buttons.
Error LED
Critical faults on the service controller are indicated through the amber error LED.
The error LED has the following two states:
OFF The service controller is functioning correctly.
50
IBM System Storage SAN Volume Controller: Model 2145-CF8 Hardware Installation Guide