Although products like Enterprise Vault offer the idea of 'unlimited' archiving, there are still several limits that an administrator or consultant should consider when it comes to deploying Enterprise Vault. One of the options available in the Enterprise Vault Desktop Policy is the ability to set the OVStoreSize as a percentage. OVStoreSize is the way to set the size limit of Vault Cache.
As can be seen below it can be set in two ways:
Maximum Size
The first way is a specific maximum size. If set to 5 Gb, then the Vault Cache will not grow beyond 5 Gb. Someone with an archive which is bigger than this will get the 'newest' 5 Gb, with things slowly sliding along, newer data pushing out older data.
Percentage Size
The second way is a percentage size. This size is the percentage of free disk space at the time that Vault Cache is setup. Sometimes people think that it is the percentage of the size of the archive - but that's not the case.
Using the percentage mechanism allows more flexibility but at the 'cost' that people don't end up with a standard size of Vault Cache-ness, and it adds another step to the troubleshooting process. Sometimes people have different mechanisms in different desktop policies applied to different groups of users.
Do you set limits in the Vault Cache Size?
