Why can't I see my newly mounted Windows file system?

On Windows, a newly mounted file system might not be visible to you if you are currently logged on to a system. This can happen if you have mapped a network share to the same drive letter as GPFS.

Once you start a new session (by logging out and logging back in), the use of the GPFS drive letter supersedes any of your settings for the same drive letter. This is standard behavior for all local file systems on Windows.