About MSDP lazy delete
MSDP lazy delete lets you retain the uploaded data to the cloud for the failed jobs for a certain period. This allows the retrying jobs to reference the already successfully uploaded data, reducing data duplication, improving efficiency, and lowering storage costs. For example, if 80% of the data was uploaded before a failure, the retried job uses that 80% and uploads only the remaining 20%. This feature is especially useful with the archive tiers like AWS Glacier or Azure Archive, which have minimum retention requirements.
The MSDP lazy delete is enabled by default. It retains the metadata of failed jobs for 2 days by default. You can update it or disable it by using the msdpcldutil lazy-delete command. For more information about the command usage, see the NetBackup Commands Reference Guide.
When MSDP lazy delete is disabled, NetBackup image cleanup removes the fragments of the image uploaded to the cloud. The MSDP does not use the unique data of a deleted image even if the data is still stored in the object storage. When the job is run again, it stores the same data in the cloud again. The duplicate data increases in object storage with each retried job.