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  1. Home
  2. IT Analytics Help
  3. Section XVI. System Administration
  4. Defining NetBackup Estimated Tape Capacity
  5. NetBackup estimated tape capacity overview

NetBackup estimated tape capacity overview

For NetBackup, some enterprise environments freeze or suspend tape media and do not allow their backup tapes to fill to capacity. In this situation, a IT Analytics database table (apt_nbu_tape_capacity_est) can be updated to override the standard estimated capacity calculation. In this table, values for Volume Pool ID, Media Type, and Estimated Capacity will be used to override the estimated capacity calculation.

See Estimated capacity notes.

When values are supplied in this table, the NetBackup estimated capacity calculations will first determine the average size of full tapes--by tape type and volume pool. If this value is less than the value provided in the apt_nbu_tape_capacity_est table, the value in the table will be used for the estimated capacity.

Various IT Analytics backup media reports use an estimated capacity calculation:

  • Tape Media Summary

  • Tape Media Detail

  • Media Availability Forecast

  • Media Consumption Forecast

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