FRG - Disk Fragmentation Report Utility
		=======================================

			   User's Guide
			   ============

     FRG  is  a  small task aimed to give the user some information on
     how  fragmented  his  disks are. For any given FILES-11 device it
     will list out a frequency count of contiguous free blocks (holes)
     falling  within  each  of several ranges, and the total number of
     free blocks for the device.
     Note  that  the  program  usually  operates  faster than a PIP/FR
     command.

     Currently the ranges that FRG considers are:-

                     1 -    5 blocks
                     6 -   15   "
                    16 -   30   "
                    31 -   50   "
                    51 -   75   "
                    76 -  100  "
                   101 -  200  "
                   201 -  300  "
                   301 -  600  "
                   601 - 1000  "
                  1001 - 2000 "
                       > 2000 "

     FRG may be invoked either by:-

          FRG DDn:
     or
          RUN $FRG
          FRG> DDn:

     where:

     DD represents the 2-character ASCII device mnemonic

     n  is  a  legal  unit  number  between  0  and  7  which  must be
     specified

     The colon (:) and unit number are optional.

     Assuming  that DDn: is a valid, mounted, Files-11 device then FRG
     will print out the relevant statistics and exit.
     The output appears on LUN 2 which may be redirected to a printer.

     FRG may produce one of the following error messages:

     1.   FRG - FALURE ON READING BITMAP.SYS

          An  error occurred trying to read the file BITMAP.SYS on the
          device specified. Most probably the device is not mounted.

     2.   FRG - ILLEGAL DEVICE

          The device specified does not exist on the system, or is not
          a valid Files-11 disk.

     3.   FRG - NO COMMAND LINE

          The  program tried to prompt for input (after being run from
          disk) but the QIO failed.

		FRG - Disk Fragmentation Report Utility
		=======================================

			   System Guide
			   ============

     The  task  consists of one simple module. This first gets the MCR
     command  line  -  prompting  the  user  for  input if one was not
     specified  - and parses it to determine the device to be checked.
     It  then  assigns  a  LUN(1)  to this device, checks that it is a
     valid,    mountable,    Files-11    disk    and  opens  the  file
     [0,0]BITMAP.SYS  on  it.  It then reads through the file checking
     each  bit  and calculating the size of each hole. Having done so,
     it increments the count for that range and proceeds with the next
     hole. When the file is finished it outputs the statistics report.

     The program is built by means of the command file FRG.CMD.  It is
     a  non-privileged  task  that  uses 3 units and has a taskname of
     ...FRG.