CopyDoubler's Fast Replace Fails on SFM Volumes with Error -48

• Microsoft Windows NT Server version 3.5 and 3.51
• Microsoft Windows NT Server version 4.0

SYMPTOMS

If you use CopyDoubler to copy a folder from a SuperDoubler Macintosh computer to a Services for Macintosh (SFM) volume on a Windows NT Server, then try to re-copy the folder to the same volume by choosing Fast Replace when prompted, you get this error:

   Error -48 (dupFNErr) Duplicate filename (rename)

CAUSE

For a Fast Replace of an existing folder (which means that no changes have been made to the folder) CopyDoubler requires directory enumerations to return entries in alphabetical order. If they are not returned this way, CopyDoubler tries to create the first directory (alphabetically) on the server. This causes an Object Exists error on the server, so CopyDoubler issues error -48 (DuplicateFileName).

WORKAROUND

Instead of the Fast Replace option, use Normal Replace with CopyDoubler.

STATUS

This is a design incompatibility. Services for Macintosh and the AFP spec do not require that filenames be returned in alphabetical order from a directory enumerate.

NOTE: CopyDoubler is part of a package called SuperDoubler which is sold by Symantec Corporation but was written by Fifth Generation Systems, Inc. You can reach Fifth Generation at:

   Fifth Generation Systems, Inc.
   10049 N. Reiger Road
   Baton Rouge, LA 70809
   (504) 291-7221
   (800) 766-7283 Tech Support