5. Business Continuity
For customers that are humming along on Windows Server 2008, there might be more reasons to let them stay put than to subject your service techs to the many meandering paths of Win-Server Upgradeville. Aside from the time required to migrate the servers, clients, data, printers, VMs and all the services, consider also the labor costs, training, unforeseen problems and potential interruptions to business associated with migrations. "We're not pushing any of our clients to upgrade," said David Hafke, co-founder of Fairdinkum Consulting, a N.Y.-based network and systems engineering firm. "Windows 2008 R2 is working just fine and we don't see any reason our clients should spend the money." A Microsoft partner, Fairdinkum prefers VMware's virtualization capabilities despite strides Microsoft has made there and in its networking stack. "Link aggregation is great, but VMware has been doing that forever. And we don't use Hyper-V, so aside from improvements there, Microsoft didn't do anything except rip apart the interface." Unless Server 2012 provides some functionality that the client must have to run the business, it might be best to leave well enough alone or consider the next slide.