What we have
Please see this picture: http://dl.dropbox.com/u/17136439/net/remote_data_access_en_what_we_have.png (unfortunately, Serverfault doesn't allow to place images directly in the messages for the new users, ignoring that I already have the normal reputation in the Stackoverflow).
Is it real to provide permament access to data stored in this external HDD from any computer in the world, including from the home computer?
Only a router and the external HDD should work twenty-four-hourly. This condition is because such system should not create a lot of noise in the home and should use less electricity than a huge server.
What about safety of this solution?
Can this external HDD work permamently? I know that they go “sleep” after some time of not working, but anything can happens, you know
And, of course, how about access control? How to make different people to have different rights with this information?
Don’t say we will need an operation system. Where to install it? We have no computer. We have only router and external HDD. Maybe I don’t really know about all of the features of such routers, but... I really need your help.