Alternative to File-level Data Sharing – Snapshots provide a way to present multiple copies of the same virtual disk to multiple hosts.Error Protection – Snapshots provide a way to perform faster and more frequent backups translating to faster recovery from data corruption problems.Fast Data Cloning – Snapshots provide a way to duplicate data quickly without disruption of data availability.Exposure to data corruption and system failure can be minimized by testing against a persistent image of real data before bringing new application changes online. Application Testing – Snapshots provide a way to perform test activities on a consistent and re-usable copy of operational data while the source data remains unaltered.Disaster Protection – Snapshots provide an efficient way to identify and return to specific virtual disk data.Snapshots provide a foundation to solve the following types of problems: Snapshots and CDP rollback volumes will not inherit ownership properties. In the case of a rollback, the image is created regardless of the state. It is possible to create a snapshot at a time when the data is in a known good state and this is the best practice. The difference between the Continuous Data Protection ( CDP) feature and the Snapshot feature is that the snapshot preserves the contents of the virtual disk at a point in time, while a CDP-enabled virtual disk allows the creation of a rollback at any point in time preserved in the history log. At the moment a snapshot is created from a virtual disk, the data contained on the "source" virtual disk is logically or physically copied to another virtual disk, referred to as the "snapshot." Snapshots can be served to hosts. Snapshot is a feature used to create a logical usable image and/or an independent fully usable copy of the data residing on a virtual disk at a specific point in time (snapshot point).
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