I am looking for some way to archive all files on our network drive. The files that would be retained are on a single volume on a single file server, which is currently about 800 gigs total. I would like to be able to retain a copy of every file even after it is deleted. If a file is modified, I would like to have every version of the file. All of this would preferably be indexed and searchable.
This wouldn't be like a normal "archiving" solution out there in that I don't want old files removed from our main file server. I'd want the file server to remain the same, and have a separate copy stored somewhere else (separate disk, server, etc.). This can be thought of as a solution for legal discovery purposes. Does anyone know if there is anything that exists out there that would do this?
UPDATE: The file server is Windows Server 2008 R2. There's probably about 10 TB free that we could use for this, but we are able to add on additional storage as necessary, and I know storage will have to be worked into whatever option we go with.