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      <title>The File Management Section (FMS)</title>
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      <div class="title_topic3" id="xps10_pagetitle">The File Management Section (FMS) </div>
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      <p class="para_topic">The File Management Section (FMS) is primarily intended for the attachment and initialization of Database sets (DBsets) and FORTRAN files.  The initialization of DBsets includes specification of their maximum size, member names, and physical filenames.  The initialization of FORTRAN files includes the specification of their filenames, FORTRAN unit numbers, and FORTRAN attributes. </p>
      <p class="para_topic">In most classes of problems that use NX Nastran solution sequences (SOL), no File Management statements are required because a default File Management Section is executed at the beginning of every run. If a restart is desired, then the RESTART statement is required in SOLs 4 and 101 through 200.  All other solutions may not be restarted.  If the problem is large in terms of requiring significant amounts of memory or disk space, then the INIT, ASSIGN, and EXPAND statements may be required.  If any FORTRAN files are required, then the ASSIGN statement is required; for example, the OUTPUT2 DMAP module.  The ASSIGN statement is also required to assign databases for DBLOCATE, DBLOAD, and DBUNLOAD.  Special database operations are performed by the DBLOCATE, DBLOAD, DBUNLOAD, DBLCLEAN, ACQUIRE, DBDIR, DBDICT, DBFIX, DBSETDEL, DBUPDATE, and PROJECT statements. </p>
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