In an earlier blog post, The vMotion Process Under the Hood, we went over the vMotion process internals. Now that we understand how vMotion works, lets go over some of the options we have today to lower migration times even further. When enabled, by default, vMotion works beautifully. However, with high bandwidth networks quickly becoming mainstream, what can we do to fully take advantage of 25, 40 or even 100GbE NICs? This blog post goes into details on vMotion tunables and how they can help to optimize the process.
Streams and Threads
To understand how we can tune vMotion performance and thereby lower live-migration times, we first need to understand the concept of vMotion streams. (more…)