Administrator Guide

Protect NAS Container Data with NDMP
A NAS cluster supports the Network Data Management Protocol (NDMP), which facilitates backup operations for network-attached
storage, including NAS containers.
A NAS cluster includes an NDMP server that performs NAS container backups to an external Data Management Application (DMA)
server running backup software.
After you congure a DMA server for a NAS cluster, the NDMP server listens on the client network for backup requests from the
DMA servers. You can congure up to 10 DMA servers.
The DMA server then accesses, or mounts, the NAS containers that it wants to back up and initiates the backup operations. For
example, to back up NAS container data:
1. The DMA server creates a connection to the NAS cluster IP address.
2. The NDMP server on the NAS cluster creates a temporary snapshot of each NAS container that the DMA server designated
for backup. The snapshot reserve for the NAS container stores the temporary snapshot.
3. The NDMP server copies the NAS container data to the DMA server.
4. After receiving the data, the DMA server moves the data to a storage device, such as a local disk or tape device.
5. When the backup completes, the NDMP server deletes the temporary snapshots.
NOTE: Manually deleting the temporary NDMP snapshot immediately terminates the current backup session. If you
change the NAS cluster IP address, the NDMP service restarts. In addition, if you change the NAS cluster IP address,
you must also make the reciprocal change on the DMA servers.
Congure NDMP for a NAS Cluster
You must have snapshot reserve to use the Network Data Management Protocol (NDMP) to facilitate NAS container backup
operations.
NOTE: Select the Enable data reduction checkbox to activate the Modify policy button. Enabling data reduction
permanently removes the snapshot reserve functionality from the NAS container.
Congure NDMP Settings
1. Click Group, expand Group Conguration, and then select the NAS cluster.
2. Click the Advanced tab.
3. In the NDMP panel, click Modify Settings.
4. In the Modify NDMP settings dialog box, type information in the various elds (user name, password, conrm password, port).
NOTE: NDMP passwords accept up to 31 ASCII characters, spaces, and punctuation (except quotation marks).
5. Click OK.
Congure DMA Servers
1. Click Group, expand Group Conguration, and then select the NAS cluster.
2. Click the Advanced tab.
3. In the NDMP panel, click Congure DMA Servers.
4. In the Congure DMA Servers dialog box, click Add.
5. Type the IP address for a Data Management Application (DMA) server. You can add up to 10 DMA servers.
6. Click OK. The DMA server appears in the list.
7. Click OK to dismiss the Congure DMA Servers dialog box.
About Snapshots
Snapshots enable you to capture volume data at a specic point in time without disrupting access to the volume.
About Backing Up and Protecting Your Data
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