Each time Outlook is started, and an archived item is opened via Vault Cache/Virtual Vault an index reconciliation takes place between the DB file and WDS Index. The DB files are used and created by Enterprise Vault for Virtual Vault /Vault Cache. If this is allowed to complete and Outlook is restarted, the same DB is accessed again and the process repeats itself.
Outlook Search Logs will show the below each time the DB is opened.
2011/06/08|14:28:16:374|Marking store for reconciliation: The store was last
opened on a different machine|0|||||||||||OK
Outlook logging can be be enabled using the registry key below. The version number will depend on your version of Outlook being used. (Please ensure you backup your registry before making any changes)
(so Outlook generates log files in %temp%\Outlook logging)
The root cause of the issue is the registry key below. When an item is accessed the corresponding DB file is added to an Outlook temporary profile. This causes the entry in the key below to be reset, and Outlook and WDS to perform reconciliation between all the items in the DB file and the WDS index. If another item is accessed in the same DB file in the same Outlook session nothing else happens. However if Outlook is restarted and an item is accessed again in the same DB file, reconciliation will occur again.
Symantec Corporation has acknowledged that the above-mentioned issue is present in the current version(s) of the product(s) mentioned at the end of this article. Symantec Corporation is committed to product quality and satisfied customers.
Please be sure to refer back to this document periodically as any changes to the status of the issue will be reflected here.