We urge individuals to review files and folders to remove old, unused, or temporary work. As a part of this process, you can compress and archive groups of files. See our HOWTO document for this. If space is still needed, contact RCS to request more space.
File transfer programs, including the Mac Finder and Windows Explorer, try to do the best job possible matching permission when files are copies over. But since the operating systems typically are different between the source (your computer) and the destination (the storage on the compute grid), the programs attempt to match as best as possible. Of course, they often don't get it right. Please see our HOWTO document on Changing File Permissions.
Unix systems rely on three set of permission for viewing and writing files. If these are not set correctly, you will see the dreaded 'permission denied' error. Please see our HOWTO document on Changing File Permissions.