Shutting down a system using the CLI

You can use the command-line interface (CLI) to shut down a system.

To power off your system, complete the following steps.

1. Determine which hosts have access to volumes on this system by running the lshostvdiskmap command.
2. Stop input/output (I/O) to the system from each host listed in step 1.
   Note: Failure to stop host I/O can result in failed I/O operations being reported to your host operating systems.
3. Shut down the system using this command:

   stopsystem 

4. Wait for the power light-emitting diodes (LEDs) on all node canisters in all control enclosures to blink at 1 Hz, indicating that the shutdown operation has completed.
   Figure 1. Location of the power LED on a node canister
   
   

   • 1 Power
   • 2 Status
   • 3 Fault
5. Disconnect the power cords from both power supplies in each control enclosure.
6. Disconnect the power cords from both power supplies in each expansion enclosure.