Permanent removal

Dear Expert,

Our repository size are increasing on daily basis, we were planed and
removed unused tags in SVN.
But still the size is not increased. And also whatever I have removed
all those files are still persist in earlier version.
Then there is no use of my removal.

Suppose, I would like to do permanent removal in SVN, how can it
possible and how to do permanent removal in SVN?
If I do permanent removal, how I can take those files in case if it is
require for future reference.

Please advise me with good practice.
Your suggestion is more use to me.
Received on 2012-01-12 08:01:59 CET