You can generate reports to determine the amount of space used by client nodes and file spaces, storage pools and device classes, or types of data (backup, archive, or space-managed). Generating occupancy reports on a regular basis can help you with capacity planning.
| Task | Required Privilege Class |
|---|---|
| Query the server for information about server storage | Any administrator |
To obtain reports with information broken out by node or file space, issue the QUERY OCCUPANCY command.
The amount of space used for logical files. A logical file is a client file. A logical file is stored either as a single physical file, or in an aggregate with other logical files. The logical space occupied in active-data pools includes the space occupied by inactive logical files. Inactive logical files in active-data pools are removed by reclamation.
The amount of space used for physical files. A physical file is either a single logical file, or an aggregate composed of logical files.
An aggregate might contain empty space that was used by logical files that are now expired or deleted, or that were deactivated in active-data pools. Therefore, the amount of space used by physical files is equal to or greater than the space used by logical files. The difference gives you a measure of how much unused space any aggregates may have. The unused space can be reclaimed in sequential storage pools.
You can also use this report to evaluate the average size of workstation files stored in server storage.