Errors with Event ID 13345 and Event ID 8391 are logged every 5 minutes in the Enterprise Vault event viewer
|Article:TECH163075|||||Created: 2011-06-23|||||Updated: 2012-09-04|||||Article URL http://www.symantec.com/docs/TECH163075|
These errors are logged on Enterprise Vault server every 5 minutes:
The above error could occur in environments where the Vault Cache is enabled for Exchange mailboxes.
Please be sure to refer back to this document periodically as any changes to the status of the issue will be reflected here.
In some circumstances a Vault Cache reset has helped to suppress the errors (refer to the technote http://www.symantec.com/docs/TECH71311 about "How to Reset Vault Cache from an Outlook Client"), however this should be performed only after have consulted someone of the backline team.
Article URL http://www.symantec.com/docs/TECH163075