Data Domain: NVRAM Remote Battery Failure Alert | NVRAM-00202

• Event ID: EVT-NVRAM-00202
  • Alert: NVRAMRemoteBatteryFailure
  • Message: "A hardware fault was detected with an NVRAM remote battery and it may need to be replaced."
• Filesystem is down with NVRAM alerts posted.

Example:

• Alert ID:          EVT-NVRAM-00202
  Severity:         Critical
  Class:             hardwareFailure
  Object:            Slot=%s
  Info:                Cause=%s (see list below)
  
  Message:         A hardware fault was detected with an NVRAM remote battery and it may need to be replaced
  
  Description:     The remote battery for an NVRAM card is not in an usable state. The file system cannot be accessed until the fault is corrected or the NVRAM remote battery is replaced.

APPLIES TO

• All Data Domain systems

This alert is triggered when the system detects that the NVRAM remote battery is unreliable or unusable. The specific cause is detailed in the alert message (Info: Cause=). Possible causes include:

• Unable to retrieve NVRAM battery status
• Battery not detected
• Battery not charging
• Voltage levels critically high:
  • Battery 1 voltage: High Critical
  • Battery 2 voltage: High Critical
  • Battery 3 voltage: High Critical
• Multiple battery failures detected

To resolve the issue:

1. Check iDRAC (System Event Log) - SDPM/VOSS systems only 
   • Confirm the affected battery
   • Check for related alerts and symptom codes and address them accordingly
     • Ref: Data Domain: How to Diagnose and Resolve SDPM | NVRAM Alerts

2. Inspect physical connections:

   • Ensure all cables between the NVRAM card, and the remote battery are securely connected.
   • Verify that the power cable from the system to the remote battery unit is properly seated.
   • If the system was previously powered off for an extended period of time, wait for the batteries to charge >=80%

3. Replace faulty components:

   • If any cables are damaged or defective, replace them.
   • If all connections are intact and the alert persists, replace the remote backup battery unit.