About accelerator support
NetBackup accelerator for Cloud object store optimizes the backups. The backup host or scale-out server uses the change detection techniques to determine the current state of the Cloud object store's objects or blobs to identify the changes that occurred since the last backup. The backup host or scale-out server 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 cloud object store data that is stored in previous backups. If a portion of an object or blob is already in storage and has not been changed, the media server uses the copy in storage rather than reading it from the client. Accelerator backup has the following advantages:
Reduces the I/O and CPU overhead on the client. For example, the backup host, during Cloud object store policy execution.
Creates a compact backup stream that uses less network bandwidth between the backup host or scale-out server and media server.
Creates a backup image that contains all data that is needed for restoration.