Powering Off; Restarting; Shutting Down; Power Failure Display - IBM 2145-8F4 Installation Manual

Figure 58. Power failure display

Powering off

The progress bar on the display shows the progress of the power-off operation.
Figure 59 shows that the power button has been pressed and the node is powering
off. Powering off may take several minutes.
Figure 59. Powering-off display
The progress bar moves to the left when the power is removed.

Restarting

The front panel indicates when the software on a node is restarting.
The software is restarting for one of the following reasons:
v An internal error was detected
v A power-off operation ended when the power button was pressed again while
If a power-off operation was ended, the progress bar continues to move to the left
until the node finishes saving its data. After the data is saved, the progress bar
moves to the right during the restart operation.

Shutting down

The front panel indicator tracks shutdown operations.
Figure 60 on page 82 is an example of what the front panel indicator shows when
you issue a shutdown command to a SAN Volume Controller cluster or a SAN
Volume Controller node. The progress bar continues to move to the left until it is
safe to be powered off. When the shutdown operation is complete, all power will
be removed from the node. When power is removed from the last node that is
connected to the uninterruptible power supply (UPS), the UPS also shuts down.
P o w e r F a i l u r e
P o w e r i n g O f f
R e s t a r t i n g
the node was powering off
Chapter 5. Using the front panel of the SAN Volume Controller
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