Data ONTAP provides full support for NDMP versions 2 to 4. Data ONTAP is shipped with the NDMP version set to 4, as both the default version and the maximum version.
The filer and the backup application must agree on a version of NDMP to be used for each NDMP session. When the backup application connects to the filer, the filer sends the default version back. The application can choose to use that default version and continue with the session. However, if the backup application uses an earlier version, it begins version negotiation, asking if each version is supported, to which the filer responds yes or no.
The ndmp version command sets an upper limit (maximum version) as well as a default version for the versions that the filer says, during the negotiation process, that it supports.
Because some backup applications do not support version negotiation, the ndmp version command controls the maximum and default NDMP version allowed. If you know your backup application does not support NDMP version 4 and does not negotiate versions, you can use this command to define the maximum version Data ONTAP supports so that the application can operate correctly.
To see the maximum version of NDMP the filer is currently set to use, complete the following step.
| 1 |
ndmpd version ResultThe maximum version that NDMP currently allows to be used is displayed. |
To specify the NDMP version you want, complete the following step.
| 1 |
ndmpd version n n is the number of the version you want to specify. Options available are 2, 3, and 4. The default maximum version is 4. |
Note
The ndmpd version command is persistent across filer reboots.
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Part No. 210-00546
File: ndmp7.htm
Last updated: 12/02/03 18:26:45