The Delete Obsolete Client Discovery Data task deletes obsolete client records from the Configuration Manager 2007 site database. A record that is marked obsolete typically was superseded by a newer record for the same client. The newer record becomes the client's current record, and the older record becomes obsolete.

When you enable this task, you should configure the schedule to run at an interval greater than the heartbeat discovery schedule. This allows clients to send Discovery Data Records (DDRs) so that the obsolete bit is set correctly.

Defaults   Deletes obsolete client discovery data older than seven days; runs on Saturday. This task is not enabled by default.

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