OneFS enables you to back up and recover file-system data using the Network Data Management Protocol (NDMP). From a backup server, you can direct backup and recovery processes between a
PowerScale cluster and backup devices such as tape devices, media servers, and virtual tape libraries (VTLs).
Some of the NDMP features are described below:
NDMP supports two-way and three-way backup models.
With certain data management applications, NDMP supports backup restartable extension (BRE). The NDMP BRE allows you to resume a failed backup job from the last checkpoint that was taken before the failure. The failed job is restarted automatically and cannot be scheduled or started manually.
You do not have to activate a SnapshotIQ license on the cluster to perform NDMP backups. If you have activated a SnapshotIQ license on the cluster, you can generate a snapshot through the SnapshotIQ tool, and then back up the same snapshot. If you back up a SnapshotIQ snapshot,
OneFS does not create another snapshot for the backup.
You can back up WORM domains through NDMP.
NOTE:NDMP backups that are created with PowerScale OneFS 9.5.0.0 are compatible only with 9.5.0.0 and later releases: they are not backwards compatible. The data restore path is possible from older OneFS source to a newer version of OneFS only as the target storage.
Example: Restoring content from a backup created with PowerScale OneFS 9.0 to a cluster with PowerScale OneFS 9.5 is supported. However an attempt to restore content that is created from a cluster with OneFS 9.5 to a pre-OneFS 9.5 cluster is not supported.
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