Backup Manager Forecasting Reports > Media Availability Forecast
Version 9.2.01
Media Availability Forecast
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The Media Availability Forecast plots forecasted consumption against forecasted availability. This report is NetBackup-specific.
The system calculates the forecasted consumption by the close of each day, using the following algorithm:
(previous day’s availability + forecasted media expiration - forecasted consumption)
In order to forecast the 7 days of usage, the system averages day-of-the-week consumption data for a historical period specified in the “Historical Data Period” parameter on the Media Forecasting Dashboard scope selector.
When forecasting the number of tapes consumed on each day, the system tallies the GByte consumption for all backups written to tape per media type in each volume group. The system then divides the total GByte consumption for that volume group / media type by the estimated capacity of that media type in that volume group. This process is repeated for each volume group / media type instance within the scope of the report and the aggregated tape consumption results are displayed via the circular line symbols in the bar chart.
The circular line symbol tracks the # of tapes available for each day displayed on the chart.
Place your mouse over each colored portion of a bar to see the following details for the associated time period:
Currently Available Storage Media
Current Consumption
Forecasted Consumption
Forecasted Available
Forecasted Tape Availability (mouse over connected circles at the top of the bars)