Emergency Procedures for Oracle Private Cloud Appliance

Emergency Power-off Considerations

If there is an emergency, then power to Oracle Private Cloud Appliance should be halted immediately. The following emergencies might require powering off the system:

Natural disasters such as an earthquake, flood, hurricane, tornado or cyclone
Abnormal noise, smell or smoke coming from the system
Threat to human safety

Note:

If you use the compute instance high availability feature, disable this feature before a system shutdown:

PCA-ADMIN> disableVmHighAvailability

Remember to enable this feature once the system and computes nodes are restarted.

PCA-ADMIN> enableVmHighAvailability

Emergency Power-off Procedure

To perform an emergency power-off procedure for Oracle Private Cloud Appliance, turn off power at the circuit breaker or pull the emergency power-off switch in the computer room.

Emergency Power-off Switch

Emergency power-off (EPO) switches are required in a computer room when computer equipment contains batteries capable of supplying more than 750 volt-amperes for more than five minutes. Systems that have these batteries include internal EPO hardware for connection to a site EPO switch or relay. Use of the EPO switch will remove power from the Oracle Private Cloud Appliance.

Cautions and Warnings

The following cautions and warnings apply to Oracle Private Cloud Appliance:

Do not touch the parts of this product that use high-voltage power. Touching them might result in serious personal injury.
Do not power off Oracle Private Cloud Appliance unless there is an emergency. In that case, follow the Emergency Power-off Procedure.
Keep the front and rear cabinet doors closed. Failure to do so might cause system failure or result in damage to hardware components.
Keep the top, front, and back of cabinets clear to allow proper airflow and prevent overheating of components.
Use only the supplied hardware.

Restart the Appliance After Power Outage

In the case that the data center or Oracle Private Cloud Appliance experiences an unexpected power outage, restart the appliance components in this order, after power has been reapplied to the system power distribution units:

Power on the switches.
The Oracle ZFS Storage Appliance should power on automatically once power is restored to the PDUs.

Wait for the storage appliance to fully boot before continuing.
Power on the management nodes from Oracle ILOM, using the start /SYS command, or by pressing the power button on the front of the node.

Wait until the management nodes are in the ready state, running, and Kubernetes micro services PODs are running on all 3 management nodes before you proceed.
Power on the compute nodes from Oracle ILOM, using the start /SYS command.

Wait until the compute nodes are in the ready state, running, and Kubernetes micro services PODs are running on all compute nodes before you proceed.
If you use the VM High Availability feature, and it was disabled, you must re-enable this feature when restarting your Oracle Private Cloud Appliance.
```
PCA-ADMIN> enableVmHighAvailability
```
Virtual machines on the compute nodes restart on their own, as a result of the VM HA features or the Restore Instance Lifestyle State feature. If an instance stays in the STOPPED state after Power On, restart it using the following command, or perform the task from the GUI.
```
oci compute instance action --instance-id <Instance-ID> --action START
```
For GUI instructions, see the Managing the Lifecycle of an Instance section in Compute Instance Deployment.