Shutting Down a Clustered Configuration (CLI)

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Use this procedure to shut down a clustered configuration.

Note - For the purpose of this procedure, the clustered controllers are referred to as controller-a and controller-b.

Verify the cluster state of each controller, using the following commands:

In the following example, controller-a is the owner and in the active state. Its peer, controller-b, is the standby controller and in the stripped state.

controller-a:>configuration cluster
controller-a:configuration cluster> show
state = AKCS_OWNER
description = Active (takeover completed)
peer_asn = 365ed33c-3b9d-c533-9349-8014e9da0408
peer_hostname = controller-b
peer_state = AKCS_STRIPPED
peer_description = Ready (waiting for failback)

Use the following table to verify the status of each controller:

controller-a	controller-b	Condition
AKCS_CLUSTERED	AKCS_CLUSTERED	Both controllers are running in a normal clustered condition.
AKCS_OWNER	AKCS_STRIPPED	`controller-a` owns all of the resources and is the active controller. `controller-b`, is in standby mode and has no resources. To limit the number of times a pool is moved, shut down the STRIPPED controller first.
AKCS_OWNER	rebooting	`controller-b` is rebooting and `controller-a` has all resources.
AKCS_OWNER	unknown	`controller-b` is powered off or rebooting, all of its cluster interconnect links are down, or clustering has not yet been configured.

Note - If the status of each controller does not agree, the cluster may be experiencing a problem. Contact Oracle Support before proceeding.

Shut down the controller-b, using the following commands:
```
controller-b:configuration cluster> cd /
controller-b:> maintenance system poweroff
This will turn off power to the appliance. Are you sure? (Y/N)Y
```
Note - If both controllers have a status of AKCS_CLUSTERED, a takeover of the surviving controller begins automatically.

From controller-a, use the show command to verify that controller-b has been powered off and is in state OWNER/unknown.

controller-a:configuration cluster> show
state = AKCS_OWNER
description = Active (takeover completed)
peer_asn = 365ed33c-3b9d-c533-9349-8014e9da0408
peer_hostname = controller-b
peer_state = OWNER/unknown
peer_description =

Shut down controller-a using the following commands:

controller-a:configuration cluster> cd /
controller-a:> maintenance system poweroff
This will turn off power to the appliance. Are you sure? (Y/N) Y

(Optional) To confirm that both controllers are powered off, log into the Oracle ILOM and enter:
```
->show /SYS power_state
```
For information about accessing ILOM, see Logging in to Oracle ILOM Remotely Using a Command Line Interface in Oracle ZFS Storage Appliance Customer Service Manual.
Power off the disk shelves.
1. Place the power supply on/off switches to the "O" off position.
2. Disconnect the power cords from the external power source for the cabinet.
  Note - All power cords must be disconnected to completely remove power from the disk shelf.
  
  For more information, see Powering Off a Disk Shelf in Oracle ZFS Storage Appliance Installation Guide.

Shutting Down a Clustered Configuration (CLI)

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