Status of non-volatile storage (NVS):
notPresent NVS is not installed.
writeProtected NVS is write-protected.
volumeError Status poll of NVS failed.
nearCapacity Utilization exceeds 85% of NVS capacity.
ok NVS is operational, none of the preceding
conditions apply.
nearConfigCapacity Utilization exceeds the ability to save the
running configuration.