We are in the planning phase for upgrading from xMII 11.5 to 12.0 and are trying to determine the best architecture for deployment.
We currently have 11.5 deployed locally at multiple sites, but have a central SAP ERP Infrastructure. The distrubuted xMII architecture was done to maintain performance and improve reliability.
I see 3 potential architectures with 12.0.
Deploy xMII 12.0 and Netweaver to each site. Obvious drawback is the support of multiple Netweaver instances and integration issues if we want to integrate up to ERP later.
Deploy a single instance of xMII on top of the existing Netweaver infrastructure supporting our global ERP instance. Potential drawbacks are poor perfromance and decreased reliability due to WAN dependency.
Deploy local distributed xMII instances pointing to a single global Netweaver instance. Not sure if this can even be done, and we would still have some dependency on the WAN.
Is anyone else aware of other options? Can you comment on the options that I am considering?