DEFINE VERB FAVOID
   IMAGE JFCTL.EXE
     parameter p1,prompt="JFAn:",value(required,type=$device),label=UNIT
     parameter p2,label=FNAM,prompt="Disk",value(type=$infile)
	qualifier DEASSIGN
	qualifier ALDEFONLY
	qualifier FRACTION,value(type=$number)
	qualifier MINIMUM,value(type=$number)
	qualifier MAXIMUM,value(type=$number)
	qualifier CBT,value(type=$number)
! Usage: FAVOID/switches JFAn: disk:
! Where JFAn: is a unit of JF: that is not otherwise in use and
! disk: is some disk to fragmentation-avoid on.
!
! switches:
! /CBT:n	do contig best try alloc every nth file open. Default=1
!			n=1 to 1000 legal
! /FRACTION:n   Extend file by 1/n of current filesize (but subject to
!			other constraints). Default n=4, 1 to 1000 legal.
! /MINIMUM:n    Extend file at least n blocks. 1 to 1000 legal.
! /MAXIMUM:n	Extend file at most n blocks. 0 to 1000000 legal. If
!			n=0 it means use 1/32 of disk size or 2000 blks
!			whichever is greater
! /DEASSIGN	Turns off fragmentation avoider.
!
! /ALDEFONLY causes extend to be modified only if the "ALDEF" bit is set
!  		so that the program has said to use the vol default
!		extend. Generally do NOT use this; it's a waste.