About NetBackup database changes
The NetBackup database is converted to a new database solution. As a part of the database conversion, NetBackup attempts to determine the number of records in the NetBackup database, and estimate the time that is required for update. If the estimated upgrade time exceeds 2 hours, you are prompted to confirm that you want to continue.
As a part of internal NetBackup testing, databases that were roughly 55 GB in size with around 100 million records took the approximate time shown based on operating system:
Linux: Approximately 30 minutes.
Windows: Between 30 minutes and 2 hours, depending on hardware.
The times shown here apply only to the database conversion, not to the upgrade itself.
During upgrade, additional disk space is required for the conversion. The space is necessary to create and migrate the new databases. Internal NetBackup testing shows that the upgrade requires approximately twice the space of the current NetBackup database for the conversion.
Run the database precheck tool to identify any potential data issues before you upgrade NetBackup. See https://support.cohesity.com/s/article/article-100055151 for instructions about how to use the precheck tool. You should defragment the NetBackup database before upgrade to improve the overall conversion experience. See the NetBackup Administrator's Guide, Volume I for additional information on the option to defragment the database.