Customer interest in active/active datacenters is through the roof – it’s a compelling idea. We’ve got a little pile of VPLEX/vTeleportation sessions at VMworld – I’m doing PC8051 with Beth Phalen, who is the VP who owns the product (which covers practical questions, how it works, but also shows where we are going). Scott Lowe is doing session TA8101 (which is very focused on do’s, don’ts and best practices in these active/active datacenter use cases. The VMware KB article that covers how EMC VPLEX supports VM HA stretched cluster also went up, you can read it here . I remain convinced that we (VMware and the storage community) have more work to do (specifically around VM HA details discussed in our sessions, as well as partition handling at the VMware and storage layers) before I would personally do this myself. But we decided that people were going to do stretched clusters, so it was more useful to be explicit about how to do it, pitfalls to be aware of. The solution spot that is a rock right now is VMotion between clusters.