1. Are the SPS from different EMC models interchangeable. The 3 that I have available from our DL3D and CX are the same part number, however I am not sure if the AX uses this same SPS.  SPS Part Number: 118031985 /078-000-062 (for EUROPE) is used for below product families and specific products:  Product Family Product CX600/700 CX400/500 CX200/300 CX3 Series DL3D-Series   CX600/700 CX400/500 CX200/300 CX3 Series DL3D-Series AX4-5 Chameleon II X1 X1-Lite CX3-10C CX3-20 CX3-40 DL3D4000 Source: Parts Information Guide.  Can you please, share the Part Number which are you are trying to replace?  If you are using the same part number for replacement then it should work provided SPS itself is not faulty.    Provided SPS you have connected is not faulty and compatible and still you are receiving that alert.  Can you please, provide output for navicli getcrus?
We recently decomissioned one of our regional offices that had an EMC AX4 SAN in place. We received this hardware back at our corporate office and fired it up. Originally there was a message that write cache was disabled due to missing standby power supplies. As far as I know there were no standby power supplies with this unit, however we did have SPS availble from our old DL3D and a CX. They all appar to be the same make and model and same connector.   After connecting the 2 SPS to the AX and cabling it up upon logging in I receive the following messages.   1. The storage systems stanby power supplies are not working properly (0x7404) and 2. The write cache is temporarily disabled because the standby power supply battery is testing or charging. When the battery is fully charged the write cache will automatically be enabled. You can change the battery test time for this if required. (0x7210)   Now I guess I have two questions.   1. Are the SPS from different EMC models interchangeable. The 3 that I have available from our DL3D and CX are the same part number, however I am not sure if the AX uses this same SPS.   2. If the SPS are in fact compatible with each other. Is there anything else that I can try in order to get this AX to pick up and recognize the SPS.   Thanks
EMC AX4-5i Standby power supplies faulted