About NDMP requirements for OpenStorage direct to tape

If the NDMP requirements are not met, the images are still duplicated. However, the copy operation uses the traditional duplication method of reading the image through the NetBackup media server and writing out to tape.

Table: NDMP requirements for OpenStorage direct to tape

NDMP functionality	Description
NDMP File Service Extension	The OpenStorage disk appliance requires an NDMP server that supports the OpenStorage direct to tape specification. The Veritas OpenStorage Partner Program publishes the specification. The direct to tape feature uses a subset of the NDMP File Service Extension (FSE) commands. The host that provides the NDMP FSE functionality can be one of the following entities: The disk appliance storage server. See About OpenStorage storage servers for backups. An alternative name (that is, interface) for the storage server. A separate host that interacts with the disk appliance. The host must be directly connected to the disk appliance.
NDMP tape server	Direct to tape requires an NDMP tape server for the destination tape library. The NDMP tape server must support NDMP v4 or later. The host that provides the NDMP tape server functionality can be one of the following entities: The same host that provides the NDMP FSE functionality. If one host provides the NDMP FSE and NDMP tape server functionality, the tape library must be attached directly to that host. Data does not travel over the network. See Figure: OpenStorage server provides all NDMP functionality. A host that is embedded in the tape library. Data travels over the network. See Figure: Tape library with embedded NDMP tape server host. A separate host to which the tape server is directly attached. Data travels over the network. See Figure: Separate host provides NDMP tape server functionality.
Credentials	The NDMP FSE server must use the same credentials as the OpenStorage storage server. Note: If the NDMP FSE host is the same host as the storage server, you must configure a DNS alias for the host. Then, use the alias name when you configure the NDMP credentials in NetBackup. The credentials must be the same as the credentials that you used for the storage server. NetBackup does not allow multiple credentials for the same host name. If you use the NDMP FSE server for other purposes, do not configure the credentials differently for that purpose. For example, if you also use the NDMP FSE server as a VTL with NetBackup, use the same credentials when you configure it with NetBackup.

NDMP functionality

Description

NDMP File Service Extension

The OpenStorage disk appliance requires an NDMP server that supports the OpenStorage direct to tape specification. The Veritas OpenStorage Partner Program publishes the specification. The direct to tape feature uses a subset of the NDMP File Service Extension (FSE) commands.

The host that provides the NDMP FSE functionality can be one of the following entities:

The disk appliance storage server.
See About OpenStorage storage servers for backups.
An alternative name (that is, interface) for the storage server.
A separate host that interacts with the disk appliance. The host must be directly connected to the disk appliance.

NDMP tape server

Direct to tape requires an NDMP tape server for the destination tape library. The NDMP tape server must support NDMP v4 or later.

The host that provides the NDMP tape server functionality can be one of the following entities:

The same host that provides the NDMP FSE functionality.
If one host provides the NDMP FSE and NDMP tape server functionality, the tape library must be attached directly to that host. Data does not travel over the network.
See Figure: OpenStorage server provides all NDMP functionality.
A host that is embedded in the tape library. Data travels over the network.
See Figure: Tape library with embedded NDMP tape server host.
A separate host to which the tape server is directly attached. Data travels over the network.
See Figure: Separate host provides NDMP tape server functionality.

Credentials

The NDMP FSE server must use the same credentials as the OpenStorage storage server.

Note:

If the NDMP FSE host is the same host as the storage server, you must configure a DNS alias for the host. Then, use the alias name when you configure the NDMP credentials in NetBackup. The credentials must be the same as the credentials that you used for the storage server. NetBackup does not allow multiple credentials for the same host name.

If you use the NDMP FSE server for other purposes, do not configure the credentials differently for that purpose. For example, if you also use the NDMP FSE server as a VTL with NetBackup, use the same credentials when you configure it with NetBackup.

Figure: OpenStorage server provides all NDMP functionality

Figure: Tape library with embedded NDMP tape server host

Figure: Separate host provides NDMP tape server functionality

About NDMP requirements for OpenStorage direct to tape

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