Access files with DDM

These topics describe the types of files supported by an iSeries™ server, when the DDM file and remote file must exist, and how to specify the names of remote files. Also included are examples and considerations for iSeries-to-iSeries and iSeries-to-System/36™ file accessing.

• Types of files supported by i5/OS DDM
  i5/OS™ DDM supports all iSeries file types when the target server is another iSeries server.
• Existence of DDM file and remote file
  A file on a target server cannot be accessed for any type of operation (such as open, read, write, or display) unless a DDM file associated with the remote file already exists on the source server.
• Rules for specifying target server file names for DDM
  The rules for specifying the name of a DDM file (on the local iSeries server) are the same as for any other file type on an iSeries server. The rules, however, for specifying the name of a remote file depend on the type of target server.
• Examples: Access iSeries DDM remote files (iSeries-to-iSeries)
  The examples show how access to a DDM file becomes an indirect reference (by using DDM) to the actual file on some other server. These examples are iSeries-to-iSeries examples.
• Example: Access System/36 DDM remote files (iSeries-to-System/36)
  Of the command examples given in the previous topic (showing iSeries-to-iSeries examples), all except the first example can be coded the same way for accessing a file on a System/36.