SRDF Adaptive Copy: Removing R2 attribute from standard devices

Question

I need to delete the relationship between the R1 and R2 devices, which will remove the R1 and R2 attribute on these devices. I'm running AIX 5.3. Can I remove the R2 attribute from the standard devices without negatively impacting the host/application that is currently using these devices?

majid7861 · Answer

Your question is not clear but I think you want to remove R1/R2 attribute and want to make sure it will not impact on application. It is online change will not impact application.Best regards,Majid

xe2sdc · Answer

As Majid said, removing RDF pairing won't affect device content. AIX may possibily change hdisk names (need to investigate better, have no chances right now) but content won't change at all.

If you have dynamic pairs, a plain and simple "symrdf deletepair" (with appropriate options) will work for you. If you have static pairs, you need a binfile change (or symconfigure).

Are you running concurrent RDF ??

Allen Ward · Answer

As Stefano pointed out the original question isn't entirely clear. Do you want to remove the relationship or the attributes (which allow the relationship) or both?

The deletepair and the removal of the Dynamic RDF attribute can both be done online as long as you are running a somewhat current version of Enginuity and Solutions Enabler.

SKT2 · Answer

looks like he wanted to remove the RDF1_OR_RDF2_Capable flag online from standard device

Host Systems

SRDF Adaptive Copy: Removing R2 attribute from standard devices