Virtual environments are susceptible to server failure with loss of access to applications and data. What happens if the ESX server has a downtime event (planned or unplanned)?
Highly available shared storage is an essential component for mission critical applications. In conjunction with VMotion, administrators are able to build a robust High Availability solution for their ESX environment.
To learn more, visit http://www.stormagic.com/pdf/SvSAN_HA_Overview.pdf and read about StorMagic's SvSAN High Availability approach