It seems that if I had a single lun or volume on a single netapp raid group then it would be a no-brainer to enable this feature. (one to one ratio between a vmware lun and set of spindles – no concurrency)
However, we have multiple vmware luns/volumes striped across a given raid group/aggregate along with other non-vmware workloads on those aggregates. For this scenario I’m not sure if enabling SIOC would be a plus or a minus. It also seems that such a setup would be common in netapp-land so I figured I’d see if anyone else has looked into this.
My default action would be to leave it not enabled (default) but I certainly don’t want to leave any storage/vmware benefits sitting unused.