The various Locate and Migrate tasks run according to schedules that you define, although there is also the Run Now option for each task so that you can run it immediately, if required.

You can schedule the PST Locator task to run during normal office hours. This probably ensures that it will find the maximum possible number of computers and PST files. When the PST Locator task has completed its search for PST files it does no more work, even if its schedule window is still open. It will not scan each computer again for a minimum of one day, although you can increase this period between scans.

The PST Collector task moves PST files to the PST holding area, ready for them to be migrated. You can restrict the number of files in the holding area so that they can all be processed by the PST Migrator task during its scheduled run. This ensures that the period for which items within PST files are unavailable is as short as possible.

On a dual-processor computer a typical rate of PST file migration is approximately 1.5 GB per hour, although this figure depends on many factors, including the type and complexity of items that are imported. Thus, a holding area with 6 GB of PST files would take approximately four hours to process.