A storage system in non-optimal mode is due to an Invalid System Configuration state. Despite this state, normal I/O access to existing volumes is fully supported; however, System Manager will prohibit some operations.
A storage system might transition to Invalid System Configuration for one of these reasons:
The controller is out of compliance, possibly because it has an incorrect submodel ID (SMID) code or it has exceeded the limit of premium features.
An internal service operation is in progress, such as a drive firmware download.
The controller exceeded the parity error threshold and went into lockdown.
A general lockdown condition occurred.