Xsan, Lion Server: Issues saving a file to an Xsan volume; "GSLibraryErrorDomain error 1" appears

In OS X Lion and Lion Server v10.7 through v10.7.2, if a file on a locally mounted Xsan volume has been edited by multiple users on different systems, you may see the following alert message when trying to save the file: "The operation couldn’t be completed. (GSLibraryErrorDomain error 1.)"

Resolution

Update to OS X Lion or Lion Server v10.7.3 or later.