Description

The VIPRION B2100 blades may randomly report an erroneous high voltage error.

Impact

None. If the errors occur as described in the following Symptoms section, you can safely ignore the errors; they do not indicate hardware failure.

Symptoms

As a result of this issue, you may encounter the following symptoms:

• The /var/log/ltm file may report one or more voltage error messages that appear similar to the following examples:
  
  slot1/hostname crit chmand[<pid>]: 012a0013:2: Blade 1 hardware sensor indicated critical condition
  slot1/hostname emerg system_check[<pid>]: 010d0009:0: Mezzanine 0.75V voltage: voltage (2490) is too high.
  slot1/hostname emerg system_check[<pid>]: 010d0009:0: Mezzanine 1.0V IDT voltage: voltage (1103) is too high.
  slot1/hostname emerg system_check[<pid>]: 010d0009:0: Mezzanine 1.25V voltage: voltage (1806) is too high
  slot1/hostname emerg system_check[<pid>]: 010d0009:0: Blade 0.75V voltage: voltage (839) is too high.
  slot1/hostname emerg system_check[<pid>]: 010d0009:0: Blade 1.5V voltage: voltage (1718) is too high.
  slot1/hostname emerg system_check[<pid>]: 010d0009:0: Blade 1.8V voltage: voltage (2031) is too high.
  
  Note: The reported voltages (####) are in millivolts and may differ slightly from these example messages.
• The error messages appear in close proximity to one another in the ltm log, normally within a one to two minute block, and the messages do not appear elsewhere in the current ltm log history.
• The front panel Alarm LED is red, indicating a critical alarm.

Status

F5 Product Development has assigned ID 408169 to this issue, and has confirmed that this issue exists in the products listed in the Applies To box. For information about releases or hotfixes that resolve this issue, refer to the following table:

Workaround

To work around this issue, you can reset the alarm. To do so, perform one of the following two procedures:

Resetting the alarm using the front LCD panel

Impact of workaround: None.

To clear the alarm, press the check button on the LCD panel, and confirm the action, when prompted.

Remotely resetting the alarm

Impact of workaround: None.

For instructions about resetting the alarm remotely, refer to SOL11094: Clearing the LCD and the Alarm LED remotely.

Supplemental Information

• SOL4918: Overview of the F5 critical issue hotfix policy
• Platform Guide: VIPRION 2400