Background: our primary production NetApp cluster is an AFF-A700, and we snapmirror content daily to an offsite FAS8060. Both are currently running OnTAP 9.7P15.
I am looking at potentially upgrading to 9.9.1P5, however I noticed that the 8060s are unable to upgrade beyond 9.8. Based on this, I would prefer to leave the 8060s on 9.7 as the 9.8 System Manager interface has numerous problems.
Main question: how will this affect replication? My understanding is that you can replicate between disparate OnTAP versions as long as the difference is no more than 2 versions. So if the 8060s stay on 9.7, can I upgrade to 9.9.1 and still replicate back to a 9.7 system? Does anyone know if the standards have changed? I wouldn't want to be "stuck" on 9.9.1 in production just because the DR system couldn't be upgraded further. Any thoughts would be helpful! Thanks.