In January 2011, EMC ultimately sealed the fate of the CX4 with the launch of the VNX line of unified storage devices. This new line combined the capabilities of the CLARiiON SAN line and Celerra NAS line, making both lines redundant. By the first quarter of 2012, both of these lines were discontinued, taking all EMC CX series devices along with them.
As the precursor to the now-current VNX line, the EMC CLARiiON CX4 taught EMC and Dell many valuable lessons that would help form the basis for the full-featured unified storage systems both companies produce today. However, more importantly, the venerable storage array system taught many of its users what they should look for in a SAN.