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UNIX

Single hierarchical file system.

Windows

Single hierarchical file system.

z/OS

Three file systems (or file access methods) under UDM:

  1. DSN (data set name, the default when UDM is running under z/OS)
  2. DD (ddname defined by a JCL DD statement)
  3. HFS (hierarchical file system supported by USS)
     
    (See UDM - zOS File Systems for detailed information on z/OS file systems.)

IBM i

Two file systems under UDM:

  1. LIB (default file system)
  2. HFS (hierarchical file system limited to the root and QOpenSys file systems under IFS)
     
    (See UDM - IBM i File Systems for detailed information on IBM i file systems.)

 


UDM behavior is based on a #Common a Common File System (CFS) model model, which is biased towards the hierarchical file systems on UNIX and Windows, and the HFS (hierarchical file systems) on z/OS and IBM i.

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To change the current file system on a server, execute the filesys command, which has the following format:

html-bobswift
Panel


<pre> 
filesys logical_name[={dd|dsn|hfs|lib}]
</pre>

In this format, logical_name refers to the logical name of the transfer server to send the filesys command.

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