Creating database service for 2 node 11g R2 RAC using srvctl

 
Hi,

We are trying to create a database service on our 11gR2 RAC 2 node database
we need the service to be available on both the instances, i.e. APPTST1 and APPTST2
here is the criteria

Here is the command we are executing

srvctl add service -d APPTST -s app -a "APPTST1,APPTST2" -P BASIC -y AUTOMATIC -j SHORT -B SERVICE_TIME -e SELECT -m BASIC -z 180 -w 5

we keep getting PRK0-2001 : Invalid command line syntax

can someone please help us with accurate syntax

Also, we have following 2 questions:

1. There is an option "-c" for cardinality with possible values of UNIFORM and SINGLETON. Can someone please explain what is the purpsoe of this switch and how does this differs from "-a" switch which is for availability on instances?