A small amount of local storage is needed for temporary files. For example, the local temporary area may be used by the Storage service when processing large files. Local storage is also required for MSMQ files and for Windows system files.

We recommend that you reassign the TEMP system variable to a drive other than the C: drive.

Slow local disks can seriously impact the performance of Enterprise Vault. You are recommended to allocate separate disks for MSMQ files. The disks need to be set up for maximum speed; for example using RAID 1+0 rather than RAID 5.

During installation, Enterprise Vault requires 70 MB of disk space to install all the Enterprise Vault components.