The items listed in this topic are DDM architecture-related restrictions.
Therefore, application programs that use these items might have to be changed
and recompiled before they can access remote files.
- The DDM architecture does not support iSeries™ multi-format
logical files. However, because multi-format logical files are supported as
an System/38™ extension to the
DDM architecture, they can be used with DDM, but only if the source and target
servers are iSeries servers or System/38s.
- Externally described data (using data description specifications [DDS]
on an iSeries server) is not supported
by the DDM architecture. However, DDS can still be used, especially if both
systems are iSeries servers or System/38s. If the target server is an iSeries server or a System/38,
most of the DDS support can be used as though the remote file is a local file.
- To access folder management services objects, the source server must support
Level 2.0 or Level 3.0 of the DDM architecture for stream files and the stream
access method. The following restrictions for the byte stream model apply:
- WAIT time is not supported by the folder management services on the Lock
Data Stream (LCKSTR) command. The user must handle the waiting function
on the source server.
- The Copy File (CPYFIL) command used to copy a document
on an iSeries server is supported
with the restrictions.
Only the header information is copied; no data is copied.
- The DELDRCOP (DRCALL) parameter is not supported on the Delete
Directory (DELDRC) command.
- Personal computer generic names are not allowed when performing operations
on data management objects such as files, libraries, or members. However,
generic names are allowed when performing operations on folder management
services objects such as documents and folders. Generic names are supported
where the personal computer supports the operation and in the manner that
the personal computer supports the operation. For example, generic names are
not supported for folders using the rename and delete commands because the
personal computer does not support them.