NDMP support

NDMP supports vFiler units as well as physical storage system.

NDMP vFiler unit support is identical to storage system support except in the following areas:

• Local tape backup and restore commands are not supported in the individual vFilers. Commands that access physical tape drive resources must be executed in the default vFiler (vfiler0) context.
• NDMP SAN management commands are not supported in the individual vFiler unit context. These commands must be executed in the default vFiler (vfiler0) context.
• VERITAS NDMP management commands are not supported in the individual vFiler unit context. These commands must be executed on the storage system.
• There is a hard limit of 160 concurrent NDMP sessions per storage system; therefore, an NDMP server running on a vFiler unit could return “All sessions used up” even when there are no active sessions running on the vFiler.

Because each vFiler unit has its own NDMP server, NDMP enables you to back up or restore each vFiler unit independently, and you can set NDMP options on each vFiler unit as well.

• Available NDMP options
  All the NDMP options from the options command are available on the default vFiler unit (vfiler0).
• ndmpcopy support
  You can use the ndmpcopy command to copy data from one location to another using the NDMP protocol.
• NDMP command support
  You can use the ndmpd command to manage and monitor the NDMP service for individual vFiler unit.
• NDMP password support
  When using the NDMP commands on the storage system, use the storage system’s root user’s password in the ndmpcopy command.