To ensure more than one copy of NAS backup data, a secondary copy must be created. Within the Veeam NAS backup job configuration, the "Secondary Target" step allows you to create a backup copy to another backup repository or an archive copy to an object storage repository. This process creates a second, independent copy of the backup data, fulfilling the requirement for data redundancy and adhering to best practices like the 3-2-1 rule. This is the direct mechanism provided by Veeam to create an additional copy of NAS backups.

A. Archive repository: This is a specific destination type for a secondary copy intended for long-term retention, not the action of creating the copy itself.
C. Backup repository: This is the primary destination for the first copy of the backup. A second repository is needed for the second copy, but the process is called a secondary copy.
D. Cache repository: This is used to store metadata and checksums to optimize the performance of incremental NAS backups; it does not contain a copy of the actual file data.

1. Veeam Backup & Replication User Guide for VMware vSphere v12

"NAS Backup Job - Secondary Target"

Page 588. This section states: "At the Secondary Target step of the wizard

you can enable creation of a backup copy or an archive copy." This confirms that creating a secondary copy is the method to have more than one copy.

2. Veeam Backup & Replication User Guide for VMware vSphere v12

"Cache Repository"

Page 578. This section explains: "The cache repository is a dedicated repository that stores metadata... It helps reduce the load on the file share and speed up the backup process." This clarifies its role is for metadata

not a data copy.

3. Veeam Backup & Replication User Guide for VMware vSphere v12

"NAS Backup Job - Target"

Page 584. This section details the configuration of the primary backup repository

which holds the first copy of the data.