Hi Rabi,
Other than Size and % free infor, this doesn't give the name of the directories though. Consequently it wouldn't allow to browse through any directories.
There is a way to create a ZDIR in AL11, but that is again using AL11.
Not sure why but I remember browsing all disks, directories/sub-directories/folders/files @ OS level via SAP GUI...still scratching my head!!!
Thanks,
Shival