I am in the process of moving our 3.5 cluster to a new 4.1 cluster. I am almost down presenting all our hitachi 9985 storage to the new 4.1 cluster, and I had manually load-balanced the hba's/luns with a Fixed policy. Primary as that was the default plugin that came up.

Then it just dawned on me this round-robin policy. Is this supported for all active/active arrays? or only ones with AULA?

I am assuming our 9985's are true AA and each SP can access the lun with no ping-ponging at all. If that is the case,,,than wouldnt round robin be a far more efficient way for me to balance the hba's and luns on a host?

Thank you.