Explanation
- The base file cannot be opened for reading
- The file being backed up cannot be opened for reading
- The delta file cannot be opened for writing
- The file being backed up has grown to a size larger than 2 GB
- A memory file mapping of the file cannot be created
System action
A full backup of the file is made, and a new version of the reference file is stored in the subfile cache.
User response
If the message indicates return code 4504, check the delta subfile cache
directory for any residual delta files. The delta subfile cache directory is
specified by the client option SUBFILECACHEPATH. Search the directory for
files named \".dXXXXXXXX\" where \"XXXXXXXX"\ is an eight-digit number. If
there are no backup operations in progress, there should not be any files in
the SUBFILECACHEPATH with this name. If there are no backup operations in
progress and these files exist, they can safely be removed.
If you continue to receive this message but there are no residual delta files
in the subfile cache directory and the file has not grown to a size larger
than 2 GB, then contact IBM technical support for further assistance.