Note: If your library has -04 level redundant power supplies (see label on top of power supply), it is
normal for the one in “Standby” mode to turn its “Green” LED off. You can test this power supply by
pulling the power connector from the other “Active” power supply. The power supply that was in
“Standby” mode now becomes "Active", and its "Green" LED lights. If it does not, replace it (refer to
“Replacing a power supply” on page 231).
If your library has -05 level redundant power supplies, the "Green" LED is ON for both power
supplies. If both "Green" LEDs are not ON, replace the failed power supply (refer to “Replacing a
power supply” on page 231).
Web User Interface Help pages
Each screen on the Web User Interface has an associated Help page. To access a Help page, click Help in
the upper right corner of the screen. A new web page opens. With the left navigation pane, select the
Help page that you want. To close the Help page, click the red X in the upper right corner of the screen.
Logging out of the Web User Interface
To log out of the Web User Interface, click Logout in the upper right corner of the screen.
Important: If you click the X in the upper right corner of your internet browser window, you do not log
out of the Web User Interface.
Figure 13. 4U library System status screen that is showing a power supply failure
User interfaces 25