Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

Creating and establishing concurrent SRDFdevices

1. Use the symdg command to create an R1 device group.

   symdg [-i Interval] [-c Count] [-v] 
   .....
   create DgName -type RDF1
   
   

   symdg create ConcGrp -type RDF1

2. Use the symdg add command to add all concurrent SRDF devices to the device group:

   symdg -g DgName [-i Interval] [-c Count] [-v]
   ....
   add dev SymDevName 
   
   

   symdg add dev 0001 -g ConcGrp -sid 0001

   symdg add dev 0021 -g ConcGrp

   symdg add dev 002A -g ConcGrp

3. Use the symrdf establish command to establish concurrent SRDF pairs that belong to the device group for the first R2 devices:

   symrdf -g DgName [-v | -noecho] 
   ......
   -rdfg GrpNum establish
   
   

   symrdf -g ConcGrp establish -rdfg 1

4. Repeat Step 3 to establish concurrent SRDF pairs that belong to the device group for the second R2 devices:

   symrdf -g ConcGrp establish -rdfg 2
   

   Alternatively, use the -rdfg ALL option to simultaneously establish both mirrors of each SRDF pair in one command:

   symrdf -g concGrp -full establish -rdfg ALL
   

   NOTE:

   Business Continuance Volume (BCV) devices cannot contain concurrent SRDF mirrors.