Use the esxcli command to verify the connection status of a particular storage device.


Install ESXCLI. See Getting Started with ESXCLI. For troubleshooting, run esxcli commands in the ESXi Shell.


  1. Run the esxcli storage core device list -d=device_ID command.
  2. Review the connection status in the Status: area.
    • on - Device is connected.
    • dead - Device has entered the APD state. The APD timer starts.
    • dead timeout - The APD timeout has expired.
    • not connected - Device is in the PDL state.