CPI0999

Even though wrksyssts shows:
Auxiliary storage:
  System ASP . . . . . . :    77.30 G
  % system ASP used  . . :    32.1884
  Total  . . . . . . . . :    77.30 G
  Current unprotect used :     1940 M
  Maximum unprotect  . . :    54820 M
I am getting the following message (cpi0999). I'm IPL'ing this weekend which
may fix the problem, but otherwise what could be
causing this?

Storage directory threshold reached.
 Message ID . . . . . . :   CPI0999       Severity . . . . . . . :   80

 Message type . . . . . :   Information

 Date sent  . . . . . . :   08/31/01      Time sent  . . . . . . :
06:06:31


 Message . . . . :   Storage directory threshold reached.

 Cause . . . . . :   The storage directory is nearing capacity.  This is a

   potentially serious system condition.  This message will be repeated
until
   an IPL has been performed.

 Recovery  . . . :   The amount of storage used on the system must be
reduced.
   To reduce the amount of storaged used, do the following:

     -- Delete objects from the system that are not needed.

     -- Save objects that are not needed online by specifying STG(*FREE) on
the
   Save Object (SAVOBJ) command.