Recording (Synchronous or Asynchronous I/O) Written by on 17 Apr 2015. Posted in Support Forum › Category: General › Recording (Synchronous or Asynchronous I/O) 0 Vote Up Vote Down bbischan asked 9 years ago We are currently looking at some performance enhancements to our storage infrastructure and our hosting provider has asked whether EMS writes files synchronous or asynchronous. Can you provide feedback on how EMS implements I/O? thanks, Bob