About basic disk staging
Basic disk staging is conducted in the following stages.
Table: Basic disk staging
Stage | Description |
|---|---|
Stage I | Clients are backed up by a policy. The Policy storage selection in the policy indicates a storage unit that has a relocation schedule configured. The schedule is configured in the New or Change Storage unit dialog box by clicking Staging Schedule. |
Stage II | Images are copied from the Stage I disk staging storage unit to the Stage II storage unit. The relocation schedule on the disk staging storage unit determines when the images are copied to the final destination. Having the images on the final destination storage unit frees the space on the disk staging storage unit as needed. |
The image continues to exist on both the disk staging storage unit and the final destination storage units until the image expires or until space is needed on the disk staging storage unit.
Figure: Stage I and II of basic disk staging shows the stages in basic disk staging.
When the relocation schedule runs, NetBackup creates a data management job. The job looks for any data that can be copied from the disk staging storage unit to the final destination. The Job Details in the Activity Monitor identify the job as one associated with basic disk staging. The Job Details list displays Disk Staging in the job's Data Movement field.
When NetBackup detects a disk staging storage unit that is full, it pauses the backup. Then, NetBackup finds the oldest images on the storage unit that successfully copied onto the final destination. NetBackup expires the images on the disk staging storage unit to create space.
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