UDP can reduce your downtime to as long as it takes to boot a replacement VM. For some, even that is too long. arcserve Continuous Availability uses application aware Real Time Replication with heartbeat monitoring and automated failover to prevent any downtime.
arcserve Continuous Availability
If you do not have the resources to create a replica environment on premise, then you can do so in the cloud. With arcserve Business Continuity Cloud, you can boot your VMs directly in arcserve cloud data centers to create your Disaster Recovery strategy.