Site Properties: Archive Settings

Site default Retention Category:

Site default indexing level:

Use this option to specify how detailed an index Enterprise Vault is to create by default. The more detailed the index, the more complex the searches that are possible using that index. However, more detail also makes the indexes larger. Therefore, you have to balance the index size against the amount and type of searching that you expect users to do.

The size of the index increases going from Brief to Medium, and from Medium to Full. It is not possible to give an exact size for the index because the size depends on the data that is indexed.

The different settings probably behave as follows:

If you change this setting, you must stop and restart the Exchange Mailbox Tasks and the Indexing Services to make the change take effect.

Users can delete items from their archives:

Select this option if you want users to be able to delete items from their archives. This option does not affect the items in mailboxes, only the items that are stored in archives. If you change this setting, you must run the Exchange Mailbox Task to make the change take effect. A Report Mode run is sufficient.

Transaction history

This option is used to determine how long to record updates to archives. Updates include adding new items, deleting items and moving items. The update records significantly improve the performance of Vault Cache synchronization by providing records of the changes to an archive since the last Vault Cache synchronization. If a user has not synchronized their Vault Cache within the transaction history period, then Enterprise Vault will process the archive to determine the updates.

Transaction history records are held in the SQL Server, so you need to ensure that the database can accommodate this data.