Mike D has an interesting two part analysis – or compare and contast of MS “Quick Migrate” against VMware VMotion.
“There has been a lot of talk recently about why Quick Migration with Microsoft’s Hyper-V drops connections when it simply uses Microsoft Clustering Services (MSCS) to do the migration and MSCS by itself does not drop network connections. In a nutshell it really has to do with where the network stack is running and what happens during a cluster failover versus a Quick Migration. This two part blog will first cover why Quick Migration drops connections and then what the impact is from actual customers in the field. As always, your constructive comments are appreciated.”