Xen Developer Summit 2015

This slides is both a technical and an end-user talks to introduce live migration at AliCloud. From end-user point of view it introduces what fields live migration benefits AliCloud, and what challenges it met when develop live migration at AliCloud in practice. It also gives an example how AliCould fix h/w issues of ~70 Shuguang X86 servers via live migration. From technical point of view it summarizes what problems it solved in the fields of virtualization, network, and storage to make live migration work at AliCloud. Especially, it demonstrates how live migration performance, reliability, and fault-tolerance were improved at AliCloud, with 20+ enhancement. This slides finally introduces the problems not solved yet (i.e., heterogeneous migration issue), and what future works to-do for AliCloud live migration (i.e., further improvement of performance and fault-tolerance, live migration).