Archiving issues with Pro/Intralink

Does anyone else have issue with the lack of archiving capability
within Pro/Intralink?

As a technical consultancy we have many folders, each allocated to
client projects. Project life varies, and at the end of this it is
important to archive data to keep the vault size down. We also need
to be able to retrieve this data for further future work. We are at
the stage now of having nearly 20Gb of data being backed up daily, and
growing.

As some sort of work-around we were advised to create a new vault and
cluster for archiving. Projects could then be moved to a new folder
based on the archive cluster. Sounds great, but in practise all that
happens is a change to the metadata. You then need to modify every
part before it will move just the most recent version into the archive
vault. This would then need to be followed by purging of all old
releases. This is not archiving!

I can't believe that PTC are so short-sighted as to think this
functionality is not required, especially as this existed within
Pro/PDM.

Does anyone know of a real approach to archiving in Pro/Intralink?