Unfortunalty it is not that easy,
every PS back up you do will save a version of your project into the Project
Server Archive Database. Lets assume that you have a project which has long
been gone and you dont want to see it in all views. there are 2 ways to deal
with it.
If you dont want anyone to see any information but maybe want to restore it
one day to check data, you can backup the project, which will keep it in the
Archive DB, then you can delete the Project from the draft and publised DB (
can be done in Server Settings under PWA ). This will make the project
disapear, but with the option of restoring it should it ever need to be
restored again.
The second option is to create a new security category. By moving the
project into this category and only giving this category to PM's or relevant
TM you can avoid having someone else look at this information. By using the
security within the category you should be able to restrict the access to the
workspace as well, meaning that the workspace can only be seen by the users
which have been associated to this category.
I hope this helps you define your archive / hidding issues
Let me know if you have any additional questions.
--
Marc Soester [MVP]
State Manager: EPM
http://marcsoester.blogspot.com