There are two SRDF types: static and dynamic.
Static SRDF is implementing by bin-file creation. Dynamic SRDF you can create any time by you self.
And static SRDF actually is not used at all now, except specific implementatoins (as Celerra).
For dynamic SRDF at first you must enable it at the array level and do some configuration in the bin-file.
Then you must create dynamic srdf group on srdf directors with commands like:
symrdf addgrp -label <GrpLabel> -rdfg <GrpNum>
-sid <SymmID> -dir <Dir> -remote_rdfg <GrpNum>
-remote_sid <SymmID> -remote_dir <Dir>
[-noprompt] [-i <Interval>] [-c <Count>]
[[-fibre] | [-gige] | [-farpoint]]
[-link_domino] [-remote_link_domino]
[-auto_link_recovery] [-remote_auto_link_recovery]
[-link_limbo <Secs>] [-rem_link_limbo <Secs>]
symrdf modifygrp <-add | -remove>
<-rdfg <GrpNum> | -label <GrpLabel>>
-sid <SymmID> [-dir <Dir>] [-remote_dir <Dir>]
[-noprompt] [-i <Interval>] [-c <Count>] [-star]
symrdf removegrp -sid <SymmID>
<-rdfg <GrpNum> | -label <GrpLabel>>
[-noprompt] [-i <Interval>] [-c <Count>] [-star]
Then you can create association between source and target devices by creating device file with this format:
<source_device_1> <target_device_1>
<source_device_2> <target_device_2>
...
<source_device_n> <target_device_n>
and by implemnting of command:
symrdf -file <Filename> -sid <SymmID> -rdfg <GrpNum>
[-bypass] [-noprompt] [-i <Interval>] [-c <Count>]
[-v|-noecho] [-force] [-symforce]
createpair -type <R1|R2>
<-invalidate <R1|R2> [-nowd] | -establish | -restore>
[-rdf_mode <async>]
[-g <NewDg>] [-remote] [-cons_exempt]
Then you can use commands from Sanjit Achary posts.
This is for SRDF/S. SRDF/A is some more complex.
