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

In the procedure, --server=server_name specifies the target server. The specified target server prompts you for a user name and password. Other connection options, such as a configuration file or session file, are supported. For a list of connection options, see Getting Started with vSphere Command-Line Interfaces.

Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started with vSphere Command-Line Interfaces. For troubleshooting , run esxcli commands in the ESXi Shell.


Run the esxcli --server=server_name storage core device list -d=device_ID command.


Check the connection status in the Status: field.

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.