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What the ndmpcopy command does

The ndmpcopy command enables you to transfer file system data between storage systems that support NDMP v3 or v4.

The ndmpcopy command functions as a simple NDMP data management application (backup application) that performs data transfers by initiating a backup operation on the source storage system and a recovery operation on the destination storage system. The command establishes control connections to the storage systems and facilitates data connection establishment. After connections are established, it facilitates data transfer. You can use host names or IPv4 addresses of source and destination storage systems in the ndmpcopy command.

Starting with Data ONTAP 7.3.3, the ndmpcopy command supports IPv6 addresses of storage systems also. You can use IPv6 addresses to establish control connections to source and destination storage systems and can request the ndmpcopy command to use an IPv6 address mode to establish the data connection.

Using the ndmpcopy command, you can perform both full and incremental data transfers; however, incremental transfers are limited to a maximum of two levels (one full and up to two incremental backups). You can transfer full or partial volumes, qtrees, directories, or individual files.

You cannot perform a block-level transfer using the ndmpcopy command.