A series of tests is completed to check the operation of components and some of the options that have been installed when the units are first turned on. This series of tests is called the power-on self-test (POST).
The power-on self-test is completed before the system code is started. Error reporting through the normal logs is therefore not possible. The node canister LED state should be examined to determine if the POST has detected an issue that prevents the system code from starting.
The power-on self-test is completed before the system code is started. Error reporting through the normal logs is therefore not possible. The node canister LED state should be examined to determine if the POST has detected an issue that prevents the system code from starting.
When the code is loaded, additional testing takes place, which ensures that all of the required hardware and code components are installed and functioning correctly.