Recreating the problem
Recreate the problem to isolate its cause to a specific sequence of events, if the problem can be easily or consistently recreated.
Many problems occur as a result of a combination of events. For example, expiration running along with nightly scheduled backups for 20 clients. In some cases, by changing the timing or order of implementation of events, you might prevent the problem from reoccurring. One way to change the timing is to run expiration at a time when the nightly scheduled backups for 20 clients is not running.