Network Data Management Protocol

NDMP: Network data management is an exposed standard protocol for network-based backup for network-attached storage. It also allows backup and network-attached file servers to focus on investment instead of excessive porting and gives the users an extraordinary level of choice and coincidence.

The protocol aims to help address the problem of backing up networks of various file servers, including devoted file servers with any backup applications.

What is a Network data management protocol? Define

Network Management Protocol discourses a series of tasks to operate a network for best performance. A human network manager generally uses it to judge and troubleshoot the network connection between a host and a client device.

In this article, you will learn:

A Brief History of NDMP

NDMP Architecture

NDMP Backup Topologies

 NetApp Cloud Backup with NDMP

A Brief History of NDMP

NDMP was proposed by NetApp and Intelli-guard in 1995 to address these topics and make it easier to protect data on NAS devices. The protocol agreed that the control route be separate from the data route:

For more than 20 years, NetApp and Intelliguard worked together to solve a frustrating problem for NAS users

Governments would back up NAS storage by connecting a NAS share on the backup server and moving the backup data to a nearby attached tape device or network-attached tape library. This was interesting; It was having trouble dealing with multiple devices and reduced presentation caused by the need to read all the files.

Control traffic

It is moved from the backup application to the NAS stage over the IP system.

Traffic in data

These are shifted from the NAS stage to storage media SCSI or Storage Area Network.

It is defined as an instrument that allows backup applications to pledge and manage backup jobs running on multiple NAS devices. Each NAS device prepares and copies the files directly to a networking device for protection.

Benefits of NDMP:

Offloads backup traffic

It is locally attached to devices or a fiber channel, avoiding data transfer blocks on networks with minimal bandwidth.

Standard agent backup

However, data management vendors no longer needed to create special agents or exclusive device drivers for each explanation a different NAS salesperson offers. These manufacturers can symbol interfaces that fulfill the NDMP average.

Central management data of NDMP

This is a single application that is similar and also manages data for multiple strategies.

NDMP Architecture

It requires functional lines that can be used for mixed facts or numbers. To provide typical edges and complete a style. These edges allow the data to flow from file systems to any backup device.

As a network protocol, it defines communications between servers and backup software.


Thus, the NDMP server enables the software to discover.

Connect to NDMP

It allows the authentication of a client and sets the protocol version


Therefore, it provides control of an SCSI device at a low level


Therefore, it handles the backup data format and specifies how the backup software restores operations. There are several topologies that NDMP supports:

Storage system to local tape NDMP

This is the most basic conformation. This also backs up the data from your primary storage system to a physical attribute tape. A control connection crosses the network boundary, which manages the data linking between the data storage and local video.

Storage system attached to a different design.

This application can back up stored data to a tape library with multiple tape drives connected to another storage system, known as an NDMP three-way configuration.

Storage system to a network-attached tape library

The tape library offers a three-way configuration approachable directly to a TCP/IP network. It lets you connect with your storage system and the internal NDMP server.

Storage system to data server to tape

This helps move the data from your storage system to a tape library attached, a backup application, or a different data server system.

Data server to storage system to tape

It also permits data backup from the server to a tape library attached directly to your storage system.

NDMP Challenges

The capacities of this have increased quickly, but before, the main focus was to separate the storage servers. But today, there is a petabyte level.

Files systems can also increase to a large size, and if backups must be restore, this also requires rebuilding file systems. Therefore, it can take a long time if the file systems have become very large.

It is mainly suitable for filing information for database requests. It is limited to a fixed number of increase backups. This is because NDMP was shape to use and  to restrict. After all, they are also in procedure.

Net App Cloud Backup: A Modern NDMP Alternative

Net App Cloud Backup is a backup and restore service for Net App Cloud Volumes deployments and on-premises ONTAP clusters. Combined with NetApp Cloud Manager, the Cloud Backup is easily enable, automate, scale, and allows you to keep the data safe. The highest level of security, like backup copies, is store in your article storage.


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