The report for Disk Space by Computer, found at Reports > Discovery and Inventory > Inventory > Cross-platform > Hardware > Physical Drive > Disk Space by Computer, usually fails when loaded. The errors usually explain the following:
An error occurred on the page. Please check the log for more details.
Failure running this Report. Please check the configuration of the query.
Description: Failure running Report 'Disk Space by Computer'. Please check the configuration of the query.
( Exception Details: Altiris.DataSource.Exceptions.DataSourceRunException: An unexpected SQL error occurred when running the RawSqlDataSource. ---> System.Data.SqlClient.SqlException: Arithmetic overflow error converting numeric to data type numeric.
The report is taking a raw value of disk space (such as 1660304752640) representing the amount of bytes on a drive, and tries to convert it to a decimal value to display the number of MB on the disk (e.g. 1583390). The conversion was capped at 9 decimal points, which wasn't enough for TB to display.
There is a fixed version of the report attached to this article. The file can be downloaded and imported into the Physical Drive folder, to overwrite the current version of the report.
This report will be integrated into a future release of Inventory Solution.