Vault Cache content strategy

You can specify a strategy for how the content of archived items is stored in Vault Cache. The content strategy controls whether full items or just item headers are stored locally.

The content strategy options are on the Vault Cache tab in the Exchange Desktop policy, and are as follows:

Do not store any items in cache. Item headers are synchronized to Vault Cache, but the content of archived items is not stored in Vault Cache. If a user who is online opens an item in Virtual Vault, or selects an item when the Reading Pane is open, Enterprise Vault immediately retrieves the content from the online archive.
Store all items. This option is the default. Item headers are synchronized to Vault Cache and the content of archived items is stored in Vault Cache.
Store only items that user opens. Item headers are synchronized to Vault Cache. If a user who is online opens an item in Virtual Vault, or selects an item when the Reading Pane is open, Enterprise Vault immediately retrieves the content from the online archive. The content of each item that a user opens in Virtual Vault is stored in Vault Cache.

When the content strategy is Do not store any items in cache or Store only items that user opens, you may want to configure the Vault Cache advanced setting Show content in Reading Pane. This setting can prevent Enterprise Vault from downloading the content to display it in the Reading Pane. Instead, a banner provides a link to open the item.