Unconvert R1 with 2 R2's (Concurrent)

You will need to run a "convert dev xxx to RAID-5". It will convert the R2's to whatever device type they are, minus the R2 attribute. Your RDF pairs will need to be split of course.

An alternative would be to convert dynamic RDF then run a delete pairs.

Good luck...

Scott AFAIK you can't handle static concurrent pairs (at least 'till code 5773). And you can't convert static concurrent pairs to dynamic.

If you have a static concurrent RDF relation and don't have code 5773, you need a binfile. Since 5773 (and S.E. 7.x) you can selectively remove mirrors.
If you have dynamic concurrent RDF relation, you can simply issue a "symrdf deletepair" statement with appropriate rdfg option and pair-file.

Hi Stef , i got your point.

My problem is i have Static SRDF relationship betweeen R1 on Box-A and R2 on Box-B through bin file.

No i am planning to have dynamic RA relationship between Box-A and new Box-c .
So will i be able to run "symrdf create pair " for R1 on box A with R2 Box C ??? (IMP thing is This is same R1 on Box-A which is already in Static RDF pair with Box-B ).

So i will have R1 on Box-A which is having one Static relationship with Box-B and dynamic Relatioship with Box-C..
I think its doable. By enabling synamic on Box A and new box C. Still i need your inputs


Now later i want to unconvert devices after spliting both relationship Static ( A-> B ) and Dynamic ( A-> C ) .
In Dynamic i can do unconvert by symrdf deletepair ..

Only question is will i be able run "unconvert dev XXX" for devices that are in Static RDF relationship because that was done by EMC through BIN Load.
So i need to ask EMC to cleanup or i can do it myself through symconfigure (command line).

Hi Stefano,
are you sure we can use symconfigure to "enable dynamic_rdf " on both the boxes A-B and not require a bin load to convert the devices to dyn_rdf from static ?
It didn't work in our same environment, we were told to do it via Bin Load to convert the devices in static rdf mode.

B/w A-C is fine, once you can convert all devices in A as dyn_rdf.

OnlySandy unfortunatly you can't mix static and dynamic RDF in a concurrent RDF relation.

But you can enable dynamic_rdf in both boxes (using symconfigure), convert existing A-B pairs to dynamic (again using symconfigure), add dyn_rdf flag to devices in box-C (again: symconfigure) and finally create concurrent dynamic pairs from A to C using symrdf. You also need an existing RDF group between A and C.

Since now you are using only dynamic RDF you can "unconvert" (remove RDF pairs) with usual symrdf command

Bhat common reasons requiring a binfile change are:

- static concurrent RDF
- conversion of a processor between RF and FA
- conversion of a RF processor to switched

Bhat .. Straight from S.E. manuals...

You can change the following symmetrix metrix using symconfigure:

concurrent_rdf ¿ Enables access to the concurrent RDF feature - multiple
R2 devices for a single static R1. Possible values are ENABLE or DISABLE.
 
dynamic_rdf ¿ Enables the creation of a set of devices that are RDF-capable,
(can be dynamically assigned as RDF1 or RDF2 devices). Possible values are
ENABLE or DISABLE.
 
dynamic_concurrent_rdf ¿ Enables access to the concurrent RDF feature
(multiple R2 devices for a single R1) for dynamic RDF devices. Possible values
are ENABLE or DISABLE.

Obviously OnlySandy have to enable all of them.

You can use symconfigure to convert a static pair to a dynamic pair without a full establish:

To convert an RDF device or devices from static RDF to dynamic RDF, use the
following command:
convert rdf dev SymDevName[:SymDevName] to dynamic;

You can use symconfigure to add dyn_rdf flag to non-rdf devices:

You can set the device attributes or emulation of a number of devices in a range using
the following command:
set device SymDevName[:SymDevName]
[emulation=EmulationType]
[attribute=[NO] device_attr];
 
attribute ¿ Indicates if a device attribute restricts how a device can be
accessed. Possible values include:
 
¿ dyn_rdf

Unfortunatly I don't know your environment. Thus can't figure out why someone told you to request a binfile change. I bet he/she had good reasons