Use Accelerator (policy attribute)
NetBackup Accelerator increases the speed of full backups. The increase in speed is made possible by change detection techniques on the client. The client uses the change detection techniques and the client's current file system to identify the changes that occurred since the last backup. The client sends the changed data to the media server in a more efficient backup stream. The media server combines the changed data with the rest of the client's data that is stored in previous backups.
If a file or portion of a file is already in storage and has not been changed, the media server uses the copy in storage rather than reading it from the client. The end result is a full NetBackup backup.
Accelerator has the following advantages:
Reduces the I/O and CPU overhead on the client. The result is a faster backup and less load on the client.
Creates a compact backup stream that uses less network bandwidth between client and server.
Creates a full image that contains all data that is needed for restore.
Note:
Accelerator operates differently when used for backup of virtual machines, NDMP, and databases.
For full details on Accelerator for VMware, see the NetBackup for VMware Administrator's Guide.
For full details on Accelerator for NDMP, see the NetBackup for NDMP Administrator's Guide.
For full details on Accelerator for Oracle, SharePoint, Exchange, or SQL Server, see the NetBackup guide for that agent.