2 different device group sharing the same RA group

Hi,

I just started as resident engineer at my customer place where I'm trying to figure out the environment.

I'm having a problem where i can see 2 different device group ( ADG & BDG) sharing the same RA group (53).

My question is a s below :

1. Can 2 different DG share the same RA group number ?

2. If can, how to move any of the DG to another RA group ?

* What I'm trying to achieve here is, when I try to split one of the Device Group, it gives me the error message saying that I need to break both the Device Group together.  Please suggest me a way for this issue. Thank you.

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Jasonc1
2 Iron

Re: 2 different device group sharing the same RA group

If it is SRDF/S then different devices in the same RDFG are allowed to be in various states (sync, failed over, suspended etc.) so for easy management, multiple DG's are fine.

If it is SRDF/A. All devices in the same RDFG must be either active in SRDF/A mode or all not. It makes less sense to have multiple DG's that manage devices in a given SRDF/A RDFG.

Since the message in your post seems to indicate SRDF/A, now you know why :-)

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sauravrohilla
3 Argentium

Re: 2 different device group sharing the same RA group

Jason is absolutely right, the error sugges that you have SRDF/A and it does not make sense to manage devices in a RA group through multiple DGs.

Your questions are:

1. Can 2 different DG share the same RA group number ?

Saurabh: Yes, they can but it does not help as you cant run any SRDF/A operation on few bunch of devices.

2. If can, how to move any of the DG to another RA group ?

Saurabh: 1) Create a RA group. 2)You can suspend the existing RA group and use movepair command with cons_exempt 3) or change the mode of existing ra group to ACP_DSK using a device file and then run the symrdf movepair command to move to the new RA group and later change the mode to SRDF/A

regards,

Saurabh

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