This is the policyLevel property of a storage auth key object, a stored authentication credential, such as a CHAP secret, that UCS uses to authenticate itself to an external storage target, reflecting where in the UCS org hierarchy the governing policy for this instance was resolved from. An admin troubleshooting unexpected policy behavior on a storage auth key can use this value to see whether the setting in effect came from the root organization, a sub-organization, or the local object itself. For example, if a storage auth key under a storage target is not behaving as its local settings suggest, checking policyLevel here can reveal that a higher-level org policy is actually the one taking precedence.