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Version: DPX 4.15

Adding an NDMP Node

Network Data Management Protocol (NDMP) is a protocol originally developed by NetApp, meant to transport data between network attached storage (NAS) devices and backup devices. This removes the need for transporting the data through the backup server itself, thus enhancing speed and removing load from the backup server.

DPX communicates with NDMP compliant nodes, including NetApp storage systems, NetApp OSSV nodes, and other third party storage appliances. Such NAS devices are referred to as NDMP nodes. DPX software is not installed on NDMP nodes; the NDMP service is provided directly by the third party hardware or software. To communicate with an NDMP node, there must be at least one non-NDMP client node licensed to run the NDMP client “proxy” module. This module is included with Windows or Linux DPX client installation, as well as in vStor (provided that vStor is added as a client node). An NDMP node communicates with DPX through the NDMP module on the client node.

Procedure​

  1. Go to the Nodes section in the sidebar.
  2. Click the Add Node button in the upper right corner.
  3. Select NDMP as the node type.

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  1. Complete fields required for nodes: specify the name for the new node, provide a valid resolvable hostname or IP address and select the group for the node.
Note.

The Node Name must be unique throughout the Enterprise, regardless of the Node Group it is saved in.

Tip.

Providing the hostname is recommended over providing an IP address – in case the IP address changes, the hostname can still be resolved to the new IP address, and the connection between the server and the client will remain functional.

  1. Complete the connection fields:

    • Client node

      Any client node within the Enterprise. It serves as a proxy in transmitting data to and from the NDMP node.

      Note.

      n a three-way backup, data from one NDMP appliance is backed up through another NDMP appliance that is locally attached to a storage device. If the two NDMP nodes have different client nodes, the client for the NDMP node connected to the storage device is the controlling node for both NDMP nodes in the three-way backup operation.

    • Port

      The port number default is 10000, which is the standard port number reserved for NDMP. It is strongly recommended to accept the default setting.

    • Username

      The Username determines the files and directories that DPX has access to on the NDMP node. Use an ID that has access to all the data you want to back up.

    • Password

      Enter the password to log into the NDMP node with the Username above.

  2. Upon successful verification of the provided credentials, the possible values for Backup type and Authentication type fields are collected from the NDMP node.

    • Backup Type

      The Dump protocol is generally used when backup of specific (but not all) files, folders, or qtrees are desired and selective file restore is a priority. The SMTape protocol is generally used when a full volume restore is necessary for disaster recovery or for seeding a secondary remote storage system for subsequent SnapMirror synchronization.
      For additional information about Dump and SMTape, see the knowledge base article 42154.

    • Authentication Type

      NDMP_AUTH_TEXTUser and password information is unencrypted.
      NDMP_AUTH_MD5User and password information uses key-to-the-hash encryption.

  3. Optionally, click Test to verify the credentials and confirm connectivity.

  4. Click Save. The NDMP node is now added to your Enterprise.

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