Protect or migrate workloads by replicating vApps or virtual machines in the vCloud Availability Portal. From or to on-premises sites you can test a failover, fail over, and reverse failover workloads to or from cloud sites.
Recovery Point Objective - RPO
The RPO is the longest tolerable timeframe of data loss. For example, with one hour RPO the recovered virtual machine can have no more than one hour of data lost. Shorter RPO intervals, ensure less data loss during recovery, at the expense of consuming more network bandwidth to keep the replica up-to-date. For more information on the RPO setting, see How the Recovery Point Objective Affects Replication Scheduling in the vSphere Replication Administration document.
When each virtual machine reaches its RPO target, vCloud Availability Replicator writes about 3800 bytes in the vCenter Server events database. Low RPO values, increase the volume of event data in the database. You can limit the number of days that vCenter Server retains event data, or set a higher RPO value to reduce the volume of event data.
Quiescing
vCloud Availability Replicator guarantees a crash consistency among all disks in a virtual machine. If you use quiescing, you might obtain a higher level of crash consistency among the disks that belong to a virtual machine. The operating system of a virtual machine determines the available quiescing types. Quiescing is available only for virtual machine operating systems that support quiescing. For more information, see Guest OS Quiescing Support.
