An Dell Avamar server is integrated with an Dell Data Domain system. A backup has expired on the Avamar server and garbage collection runs. What is the impact to the backup stored on the Data Domain system?

In an integrated environment, Dell Avamar manages the backup catalog, metadata, and retention policies, while the Dell Data Domain system serves as the storage target. When a backup's retention period expires according to Avamar's policy, the Avamar garbage collection process deletes the metadata for that backup. It then sends a corresponding deletion command to the Data Domain system, which removes the pointers to that backup's data. The space is later reclaimed by the Data Domain's own cleaning process.

A. The Data Domain system does not use its own retention policies for Avamar backups; it relies entirely on deletion commands from the Avamar server.
C. An HFS check (Hash File System check) is a maintenance and integrity-checking task, not a process triggered by backup expiration.
D. Replication is a data protection strategy configured separately and is not an automatic consequence of a backup expiring on the primary system.

1. Dell Avamar and Data Domain System Integration Guide (Version 19.4), Page 60, "Garbage collection with Data Domain systems". The guide states, "When Avamar garbage collection runs, it deletes expired backups from the Avamar server and the associated backup data from the Data Domain system."

2. Dell Avamar Administration Guide (Version 19.4), Page 213, "Garbage collection" section. This section explains that garbage collection reclaims space by deleting expired backup data, which in an integrated solution, resides on the Data Domain system.