Concurrent maintenance on EMC CLARiiON systems

Concurrent maintenance is the ability to process I/O operations to a controller while simultaneously doing maintenance on it.

Important: An EMC field engineer must complete all maintenance procedures.

The EMC CLARiiON FC series and the system allow concurrent replacement of the following components:

EMC CLARiiON FC devices require that the I/O is quiesced during code update. Therefore, the system does not support concurrent update of the FC controller code.

The EMC CLARiiON CX series and the system allow concurrent replacement of the following components:

The system and EMC CLARiiON CX devices support concurrent code update of the CX controllers.

Notes:
  • EMC CLARiiON procedures for concurrent update must be followed in all cases.
  • Use the Data In Place Update feature in the CX series to update from one model to another (for example, from the CX200 to the CX600) with no data loss or migration required. This operation is not a concurrent operation.