Description

The EVcache folder is required for day to day operation of Enterprise vault application. The EVCache location folder is used as temporary file storage to increase performance during Vault Cache, PST, Indexing and FSA Enterprise Vault processes. The EVCache location folder must be a dedicated folder. The specified folder must be empty and not be utilized for any other function.

Storage requirements for the Enterprise Vault cache folder
The cache is a folder on the Enterprise Vault server in which Enterprise Vault stores temporary files for the following:
■ Indexing service
■ File System Archiving (FSA), if the target file server is either a NetApp Filer for which you have configured pass-through recall or an EMC Celerra/VNX device
■ Vault Cache clients You must specify a location for the cache if any of these facilities is configured on the Enterprise Vault server. In the Administration Console, you configure the cache location on the Cache tab of the computer properties for the Enterprise Vault server. 

Keep the following in mind when you configure the cache location:
■ To ensure optimum performance, create the cache folder on fast, locally-attached storage.
■ The Vault Service account must have read and write access to the cache folder.
■ The major use for the cache is to provide temporary storage for Vault Cache clients. If only a few Enterprise Vault clients use Vault Cache, a location with a minimum of 20 GB of free space is probably sufficient. If many clients use Vault Cache, specify a location with far more free space.
■ Anti-virus software can potentially change data in the cache, so it is important to exclude the cache location from virus checking.
■ If you have clustered Enterprise Vault with Veritas Cluster Server or Windows Server Failover Clustering, the cache location should be a clustered resource.

Why does Enterprise Vault create a hidden share called EVCache