Defining a backup strategy for VMs and datastores

Defining a backup strategy before you create your backups provides you with the backups that you require to successfully restore VMs or individual VMDKs. Your service-level agreement (SLA), recovery time objective (RTO), and recovery point objective (RPO) largely determine your backup strategy.

About this task

An SLA defines the level of service that is expected and addresses many service-related issues, including the availability and performance of the service. RTO is the time by which a business process must be restored after a disruption in service. RPO defines the strategy for the age of the files that must be recovered from backup storage for regular operations to resume after a failure. SLA, RTO, and RPO contribute to the data protection strategy.

Perform the following steps for each of VMs and datastores.


  1. Determine when you should back up.
  2. Decide how many backups you require.
  3. Determine for how long you want to retain backup copies on the source storage system and the SnapMirror destination.
  4. Decide whether you want to use NetApp SnapMirror disaster recovery or SnapVault archiving technology in conjunction with SnapCenter Plug-in for VMware vSphere.
  5. Determine which prescripts and postscripts you require.