The following list describes how space can be created for more images on a disk storage unit:

• Add new disk space.

• Set the High water mark to a value that best works with the size of backup images in the environment.

To maintain space on basic disk staging storage units, consider the following:

• Increase the frequency of the relocation schedule. Or, add resources so that all images can be copied to a final destination storage unit in a timely manner.

• Upon NetBackup installation or upgrade, the nb_updatedssu script runs. The script deletes the .ds files that were used in previous releases as pointers to relocated data. Relocated data is tracked differently in the current release and the .ds files are no longer necessary. Under some circumstances, a .ds file cannot be deleted upon installation or upgrade. In that case, run the script again:

  install_path\netbackup\bin\goodies\nb_updatedssu

• The potential free space can be determined on a disk staging storage unit.

• The General Server host property Check the capacity of disk storage units property determines how often NetBackup checks 6.0 disk storage units for available capacity. Subsequent releases use internal methods to monitor disk space more frequently.

  See Check the capacity of disk storage units every.