Jeff from the Microsoft Virtualization team posted part III in his continuing series comparing Quick Migration and VMotion. This entry covers planned outages. His point is that most customers plan for downtime anyway, so having some downtime is fine. He also says that in their conversations with existing VMware customers, they still do their maintenance in downtime windows, even though they have VMotion.

I think this is a fair point, but I also think that customers are wanting to get rid of their downtime windows or shrink them. Quick migration helps to shrink it, and VMotion lets you have only uptime - if you want it.

Todd