There are benefits to both approaches Unitrends offers for protecting a NAS. The recommended approach for you depends on your business requirements. Use the following comparison to determine how to protect your NAS:
|
Function |
NDMP |
CIFS and NFS |
|---|---|---|
|
Backup |
Application backups. Protected at the volume level. Captures Access Control Lists (ACL) and other file attributes. Full, Differential, and Incremental backup types. Automatically promotes every 10th incremental to a differential. Shorter backup windows, especially if protecting many small files. |
File-level backups. Protected at the NAS share level.
|
|
Restore |
Restore to NDMP devices of the same vendor. See vendor documentation for additional compatibility limitations. Point-in-time restores of the entire backup group are supported. Individual file restores from a backup selected on the Status page are supported for some filers. |
Restore to the same CIFS/NFS device. Point-in-time restores of the entire backup group or select files within the backup group are supported. Individual file restores from a backup selected on the Status page are supported. |
|
Replication |
Configure volumes on the NDMP device for replication. |
Configure the CIFS/NFS client for replication. Better deduplication and replication performance. Longer retention possible because of smaller backup footprints. |
|
Archive |
Archive at the client-level or by volumes. |
Archive at the client-level. |