VMware and crash consistency
People often ask a question about VMware (ESX) and its consistency of data. Many think that if a host crashes the virtual machine data may be corrupted or worse than crash consistent.
The KB article "Storage IO crash consistency with VMware products" @ http://kb.vmware.com/kb/1008542 gives a great summary.
VMware ESX acknowledges a write or read to a guest operating system only after that write or read is acknowledged by the hardware controller to ESX. Applications running inside virtual machines on ESX are afforded the same crash consistency guarantees as applications running on physical machines or physical disk controllers.Now you know and you have something to cite.