Testing

• To force R1's and R2's to be R/W you need to issue a split:   symrdf -g srdf_APPR01 split -force

At this point a clone should be taken of the R2 site to give a point in time copy for recovery purposes.

• This will allow testing to be done on the R2 site while service remains up on the R1 site. When testing has finished we just need to issue an establish to write disable the R2's and copy R1 back to R2.

• If the link has been split for a while set the mode to adaptive copy first while the 2 sides sync up:

   symrdf -g srdf_APPR01 disable
   symrdf -g srdf_APPR01 set mode acp_disk
   symrdf -g srdf_APPR01 establish

• Allow some time for the SRDF group to approach synchronisation if all don't sync but the invalid tracks has reduced considerably the mode can then be returned to async mode and consistency enabled on the group:

   symrdf -g srdf_APPR01 set mode async
   symrdf -g srdf_APPR01 enable