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May 3rd, 2012 14:00

SRDF -type R1/R2 related question

Hi Folks,

I have a question regarding SRDF.

When we createpair between R1 and R2 using the below command:

symrdf -file -sid -rdfg createpair -type R1/R2 -establish

What does -type R1/R2 signify here. Is R1/R2 similar to RDF1/RDF2? Would changing the order reverse sync from R2 to R1?

Also when synchronizing initially ..if we want to stop the sync and resume it some other point in time which command should be used.

-Thanks in Advance

148 Posts

May 3rd, 2012 20:00

Hi Tech51,

R1/R2 indicate whether the symm and devices are RDF1(source) or RDF2(target).

The Symmetrix ID specified in createpair command  is the R1 side by default and due to that we are using -R1 option.You can specify the -R2 if you are mentioning R2 symm ID but that will not copy from R2 to R1.

Type R1/R2 depends upon which symm ID we mention in the command(source or target)

If you want to stop the sync,you can suspend the RDF pair and use resume option when want to resume the sync

symrdf -file -sid -rdfg -suspend

If you created a DG,use

symrdf -g -suspend

To resume

symrdf -file -sid -rdfg - resume

symrdf -g -resume



31 Posts

May 4th, 2012 08:00

Thanks Anoop. That was very helpful.

Can you also let me know. How when I initially sync R1->R2 can i add the devices to a Device group, so that I can perform any RDF operations such as query/set mode/suspend/resume on the DG.

A command will be helpful. -Thanks again in Advance.

93 Posts

May 4th, 2012 08:00

Hi,

You can create a DG using:

symdg create [‑type REGULAR | RDF1 | RDF2 | RDF21]

To add devices to the DG use:

symld -g add

You can create DG on both local and remote by using the above commands.

For Local: Type would be : RDF1

For Remote: Type would be : RDF2

Thanks

Amita

148 Posts

May 4th, 2012 09:00

Hi,

Please have a look into this document

EMC Solutions Enabler Symmetrix SRDF Family CLI

108 Posts

May 7th, 2012 01:00

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