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Dropbox folder and file names are case-insensitive
(KB # 4297439E)

Applies to: BizNAS (all models)

Dropbox handles file paths in the same manner as Microsoft Windows.  Uppercase and lowercase letters are preserved when creating files and folders, but are ignored when locating a file.  For example: “AAA/file.txt” and “aaA/FILE>TXT” refer to the same file.

Some operating systems (such as Linux) are case-sensitive.  On these systems, it is possible to create files and folders that Dropbox cannot properly handle.

Examples of problems when linking case-sensitive files and folders to Dropbox

  1. File  “Aaa.txt” and file: “aaa.txt” are created in the same folder
    • Only one file will be retained by Dropbox and the BizNAS. 
    • The other file might appear as a “conflicted copy” created by the BizNAS to avoid losing the file.
  2. File “Ccc” and folder “ccc” are created in the same folder
    • Folder will be retained by Dropbox and the BizNAS.
    • File will appear as a “conflicted copy” created by the BizNAS to avoid losing the file content.
  3. Folder “ddd” and folder “DDD” are created in the same folder
    • Files and folders found anywhere below “ddd” and “DDD” may relocate into either folder tree or create copies under both folders.
    • Files and folders located in subfolders below “ddd” and “DDD” may be treated as if they existed in the same folder and encounter problem 1 or 2 above, even though they are actually in separate folders.
  4. Rename a file or folder from “EEE” to “eee”
    • The name of the file or folder will not change on Dropbox.
    • The local name of the file or folder no longer matches Dropbox, but is still associated with the same Dropbox file or folder.

Avoiding the problem

When using case-sensitive systems on BizNAS folders linked to Dropbox, you should avoid using names within a folder that are identical other than the use of uppercase or lowercase letters.

The link between BizNAS and Dropbox synchronizes both upload and download, so changes made on a case-sensitive system can cause these problems to appear on case-insensitive systems.



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