• De-Duplication is performed at a global level not on individual containers.
• Rapid Data Access (RDA) is developed by Dell and provides a logical disk interface for use with network storage devices.
• RDS allows for better coordination and integration between DR Series backup, restore, and optimized duplication operations with vRanger Backup.
• The DR Series and vRanger integration is done using the Rapid OFS (ROFS) plug-in developed by Dell.
• The ROFS plug-in allows vRanger control over backup image creation, deletion, and duplication.
• RDS allows de-duplication operations to happen on the client-side so that network traffic can be reduced.
• The RDS protocol allows the supported backup applications to communicate directly with the DR Series and determine whether a specific chunk of data already exists on the system.
• If the data already exists, only the pointers need to be updated on the DR Series, and the duplicate chunk of data does not need to be transferred to the system.
• This process provides two benefits: it improves the overall backup speed, and also reduces the network load.