To resolve the issue of warnings not clearing in the Hardware Status tab, you must reset the event log.

• Hardware Status tab of an ESXi host reports warnings that do not clear even after the hardware issue is resolved.
• You see the alert:
  
  Status on the battery, storage and system logs
  The battery on array status Unknown

Important: Before proceeding, ensure to confirm with the hardware vendor that this is not a hardware issue.

1. Clear the BIOS Hardware Logs (IML for HP Servers and DRAC Hardware Logs for Dell Servers).
2. Select the ESXi host that reports the memory warning.
3. Click the Hardware Status tab in the vSphere Client.
4. Select the System event log view from the list.
5. Select Reset event log and click Update.
6. Click Reset sensors.
7. Restart the host.
8. After restarting the host, select the ESXi host and click the Hardware Status tab.
9. Click Update in the Alerts and Warnings view under the triggered warning.

If the warning persists:

1. Connect to the host using an SSH session.
2. Run this command in the command prompt:
   
   /etc/init.d/sfcbd-watchdog restart
    
3. From the vSphere Client, select the ESXi host and click the Hardware Status tab.
4. Click Update in the Alerts and Warnings view under the triggered warning.

Note:

• If the issue persists, place the host in the maintenance mode and then remove and re-add it to the cluster.
• If you see warnings and alerts related to memory and IPMI alert, see "Host IPMI system event log status" alarm in vCenter Server (1033725).