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The liquid crystal display, or LCD panel, provides the ability to control theunit without attaching a serial or network cable. The following menus are available on the LCD panel.
Normally, the screens cycle on the LCD panel at a constant rate. However,press the Check button to toggle the LCD panel between Hold and Rotate modes. In Hold mode, a single screen is displayed. The Rotate mode changes the screen displayed on the LCD panel every four seconds.
Pressing theX button puts the LCD panel in Menu mode. The buttons Left Arrow, Right Arrow, Up Arrow, and Down Arrow are functional only when the LCD panel is in Menu mode.
After you put the LCD panel in menu mode, use the Left Arrow, RightArrow, Up Arrow, and Down Arrow buttons to select menu options. There are four menu options:
You can use the Information menu to access help pages about using theLCD panel functionality. You can also find more information on what different LED activity means, and on the failover state of the unit in a redundant system. Table 3.1 shows the options available on the Information menu.
Use the Check button to turn on (checked) or off(cleared) the heartbeat displayed on the LCD screen. This heartbeat displays if the SCCP is running on the system. This heartbeat does not affect the failover mechanism of the system.
This setting controls the brightness of the LCD panelwhen the backlight is off. Use the Left and Right arrow keys to set the brightness of the LCD panel.
Improperly turning off or restarting a BIG-IP 2000 or 4000 series platform using the LCD panel may result in the device remaining in power standby mode.
For example, if you press and hold the red X button on the LCD panel to put the device in power standby mode, and then immediately press the green Check button to turn on the device, the LCD panel will briefly indicate that the system is turning on. Instead, however, the system will revert to power standby mode.
Output of the tmsh list sys db lcd.showmenu command shows the value of the lcd.showmenu database key is set to enable even though the LCD displays Secure Mode.
F5 Product Development has assigned ID 970829 to this issue. F5 has confirmed that this issue exists in the products listed in the Applies to (see versions) box, located in the upper-right corner of this article. For information about releases, point releases, or hotfixes that resolve this issue, refer to the following table.
For iSeries, the power button cannot be disabled on LCD panel, which is by design. The LCD panel can"t be completely disabled as is used for power control.
To prevent the BIG-IP system from running into such a kind of issue in the future, it"s suggested to shutdown the system by using the command line. If the LCD panel must be used, first press Halt, and then press Power Off.
In some cases, you may want to remotely clear LCD warnings and the Alarm LED. Performing this action may prevent onsite personnel from discovering and reporting an old warning, or having to teach the onsite personnel how to clear the LCD. You can use the lcdwarn command line utility to control the LCD and the Alarm LED. To display its usage, run the lcdwarn command without any arguments.
To clear the Alarm LED, you must clear all LCD warnings at all alert levels (on all slots for VIPRION systems). To do so, perform the following single command appropriate for your BIG-IP platform:
If you run this command on a VIPRION system that has unpopulated blade slots, the system logs benign error messages to the/var/log/ltm file that appear similar to the following example:
Note: Running this command on legacy BIG-IP platforms that are not equipped with an LCD (such as the 1000, 2400, 5100, and 5110) only clear the Alarm LED.
When the BIG-IP system attempts to update the system state on the LCD display during a failover event (for example, you see the Unit going activemessage).
The LCD on the BIG-IP system may not display updated system state messages. This issue usually corrects itself eventually, but to allow the LCD display to be updated immediately, perform the suggested workaround.
As a result of this issue, you may encounter one or more of the following symptoms:The LCD on your BIG-IP system may not display the following messages during a failover event:
F5 Product Development has assigned ID 561444 to this issue. F5 has confirmed that this issue exists in the products listed in the Applies to (see versions) box, located in the upper-right corner of this article. For information about releases or hotfixes that resolve this issue, refer to the following table:Type of FixFixes Introduced InRelated Articles
In rare circumstances, the LCD panel on iSeries platforms erroneously displays the "Sensor 0 type 0 event 2 asserted" message and sets the Alarm LED to amber.
F5 Product Development has assigned ID 641246 to this issue. F5 has confirmed that this issue exists in the products listed in the Applies to (see versions) box, located in the upper-right corner of this article. For information about releases, point releases, or hotfixes that resolve this issue, refer to the following table.
Important: After halting the unit from the LCD panel, you must wait at least 60 seconds before shutting down or restarting the unit. Failure to do so may result in unexpected behavior due to improperly shutting down the system.
When you attempt to configure the management IP address of the iSeries platforms, you notice an error message on the LCD display that appears similar to the following example:
F5 Product Development has assigned ID 619397 to this issue. F5 has confirmed that this issue exists in the products listed in the Applies to (see versions) box, located in the upper right corner of this article. For information about releases or hotfixes that resolve this issue, refer to the following table:
To work around this issue, you can wait for one minute before you use the LCD touchscreen panel to make another attempt at configuring the management IP address of the device. The attempt should be successful once the device has been successfully licensed and is running in the active state.
This is the result of a known issue. When repeatedly pressing the left or right keypad button to change the information displayed on the LCD, you may notice the following anomalies:The new screen may include output from the previous screen. The extraneous output may consist of single characters or entire words. For example, the LCD may incorrectly display the word standalone at the bottom of the Memoryscreen.
BIG-IP systems exhibiting this behavior are not defective and do not require an RMA. This issue is software related and is caused by the lcdproc package.
F5 Product Development tracked this issue as ID 341952, and it was fixed in BIG-IP version 10.1.0. For information about upgrading, refer to the BIG-IP LTM, ASM, GTM, PSM, Link Controller, WebAccelerator or WAN Optimization release notes.
The LCD panel displays the desired message, and the alert LED on the front panel of the BIG-IP system is solid yellow, unless a higher priority message is also being displayed.