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Start the Backup Job Wizard, and click Create New next to the Selections list. Open the NetVault Backup Server. Select NDMP SnapMirror to Tape, and in the Actions list, click Configure. |
BLI Incremental Backup Can Delete Previous Differential Snapshot |
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Delete All Previous Snapshots Prior to Starting a Full BLI Snapshot |
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Snapshot Backup Selection Cannot be Used with Create Snapshot Option |
If you select the Create New Snapshot check box after selecting a snapshot in the selection tree, the plug-in reports an error and fails the job. When you clear this check box, the plug-in reports an error, but does not fail the job. |
Type the codepage identifier for UTF-8 conversions. Use this setting with the Use UTF-8 Conversions option described in the section Adding a NetApp filer. | |
By default, NetVault Backup removes the subjobs for Phase 2 backups whether the phase completes successfully or fails. You can use the Delete Unsuccessful Jobs On Completion setting to change the default behavior. If you clear this check box, the subjobs generated during Phase 2 backups are removed only if both Phase 1 and Phase 2 backups complete successfully. |
NOTE: To use 256K block size, you require Plug‑in for SnapMirror to Tape 7.2.101 or later. For Data ONTAP requirements, see the Quest NetVault Backup Compatibility Guide. |
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On the filer, set the DATA_BLOCK_SIZE variable. |
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Open the configuration file ndmpsmtversions.cfg in a text editor. You can find this file in <NetVault Backup home>/config. |
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Linux and UNIX: If necessary, increase the amount of shared memory, typically the shmmax setting. |
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Windows: If necessary, increase the MaximumSGList setting for the tape device. For more information, see the relevant operating system and SCSI card documentation. |
This section provides a brief description of the available backup methods and types.
The Plug‑in for SnapMirror to Tape supports the following backup methods:
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Standard Backup: This method can be used to perform Full or Level 0 backups of the selected volumes. The Standard Backup method is the only method available with Data ONTAP versions older than 8.1.1 and Plug‑in for SnapMirror to Tape versions older than 7.6.x. |
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Block Level Incremental (BLI) Backup: This method can be used to perform Full, Incremental, and Differential Backups of the selected volumes. The BLI Backup method uses snapshots to perform backups. A Full Backup initializes a backup context against which the plug-in performs Incremental and Differential Backups of the selected volumes. |
NOTE: The BLI Backups created with Plug‑in for SnapMirror to Tape cannot be consolidated using the NetVault Backup Plug-in for Consolidation (Plug-in for Consolidation). |
The BLI method supports the following backup types:
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Full Backup: A Full Backup provides a backup of the entire volume. These backups serve as the base backups for subsequent Incremental and Differential Backups. |
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Incremental Backup: An Incremental Backup provides a backup of the changes in a volume since the last Full, Differential, or Incremental Backup. Incremental Backups consume minimum storage space and are quicker to perform. However, data recovery can take more time depending on the number of savesets that the plug-in is required to restore. |
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Differential Backup: A Differential Backup provides a backup of the changes in a volume since the last Full Backup. Differential Backups speed up recovery since the plug-in is required to restore only two savesets. However, these backups consume more storage space and take more time to complete than the Incremental Backups. Differential Backups duplicate the data backed up by previous backups of the same type. |
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