P-2360 When attempting to run a program the system stays at the main menu.

PRODUCT:  CHARTS
TYPE:     Software
MODULE:   RS6000
PROGRAM:  OS
AUTHOR:   BW/HZ 
DATE:     May 22, 1995
DOC ID:   f:\WPDOC\SWP#157

SYMPTOM:

     While attempting to run a program in CHARTS the system stays 
     at the main menu.

ISSUE/PROBLEM:

     A file system has run out of room.


SOLUTION:


     I.   First, what is a file system?

     In Unix, certain areas on the physical storage disks are set up to 
     contain various data. For example all CHARTS data is in a file 
     system called /home. A file system is set up with a certain
     amount of room reserved on the physical volumes (disks).


     II.  What does it mean if my file system is full?

     It means that the amount of reserved space set up on your disk for 
     a file system is completely used up. If the reserved space is used, 
     data cannot up added to the file system. This is true even if 
     there is additional disk space available on the system.


     III. How can I be sure that a file system is out of room?

     Do the following:

          1) Logon with root
          2) Type df ENTER
          3) A listing will appear as outlined below

                                                      %
 Filesystem     Total KB  Free   %Used    Iused     Iused     Mounted on
 /dev/hd4       12288     7344   40%      828       26%       /
 /dev/hd3       434176    0      100%     5028      4%        /home

          4) If a file system is displayed with 0 space free then that 
             file system is out of room. In our example /home has 
             no free space available. Note that if a Filesystem is a 
             cd device (ie. /dev/cd0), then that device will always 
             be shown as having 0 free space available and should
             be ignored.



     IV.  How can I increase the free space on my file system?

     You have two choices:

     1.   You can delete files from your file system. For example 
          if /home is full then by deleting files from that file system 
          you are freeing up additional space. CAUTION must be used
          when deleting files. It should generally not be done without 
          RHS supervision.

     2.   You can increase the space allocated to your file system. 
          This will work only if physical disk space is available. 
          To increase the space allocated to a file system do the
          following:

          a)   Loagon using root
          b)   Type smit jfs (this stands for journaled file system) 
               and press ENTER.
          c)   Tab down to Change/Show Characteristics of a Journaled 
               File System and press ENTER.
          d)   Tab down to the file system that has run out of room 
               (e.g., /home) and press ENTER.
          e)   Tab down to Size of File System where a number 
               indicating the size of the file system is displayed, 
               add appox. 10% to the number being displayed (for 
               example if 10000 is displayed change the number to 
               11000) and press ENTER.
          f)   When the message appears File System Size Changed 
               appears press PF '10 to exit.