Disk Usage Analyzer can scan storage devices which are accessible remotely. To scan the whole file system or any specific folder remotely:
Press the button in the top-right of the main window and select Scan Remote Folder….
Enter the URL into the Server Address field. It will normally have a protocol, followed by a colon and two slashes, that looks different depending on the protocol that you are using.
Click Connect to continue; you may be asked for more details, like a password and username, before the scan will commence.
Scanning over the network may be slower than scanning a local file system.
You can also select a recently used server instead of entering a new URL. If you enter a URL which is not valid, you will not be able to press Continue, but if the URL is valid, but incorrect, the connection will fail without warnings.
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