Hi koppuru,  Your questions are very generic. I strongly suggest to download the documentation set for Solutions Enabler 7.5 from support.emc.com and read the EMC Solutions Enabler Symmetrix SRDF Family CLI pdf  where you will find all the information you need regarding monitor and troubleshoot SRDF/STAR environment.  Regards, Kl.
we have an srdf/star (cascaded) setup in our environment.   How to monitor the srdf/star environment. ?  How to trouble shoot if there is any link failure for a while ?
srdf/star link failure