Hi,  Yes 5773 to 5874 SRDF is possible. See Knowledgebase article emc211857 for more information. At your code levels it would be recommended to update.   Steve
Hi,  SRDF possible from VMAX to DMX4 ?  the product details as given below  Product Model                        : DMX4-24 Microcode Version (Number)           : 5773 (168D0000) Microcode Registered Build           : 1 Microcode Patch Level                : 141    Product Model                        : VMAX-1 Microcode Version (Number)           : 5874 (16F20000) Microcode Registered Build           : 32 Microcode Patch Level                : 242   thanks & regards
SRDF (vmax to dmx4)