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STACKER NOTE                                                  STACKER NOTE
Title:  SDEFRAG Error #04
STAC FAX Index #3701 - 1/19/93                           
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Background

When  you  run  SDEFRAG in Stacker 3.0, you may see an error  #04 message,  
followed by an instruction to run the command CHECK  to find and correct 
this error. The condition that causes error  #04 is  harmless and has no 
effect on data integrity. In fact, it  is so minor that CHECK doesn't 
normally even notice it.

In  the past, some users have added the /=D switch to CHECK. This 
undocumented switch is intended for internal development purposes only. 
It causes CHECK to report on many conditions that are  part of  Stacker's 
normal operating mode. If you use the command CHECK /=D  /F,  CHECK may offer 
to fix transient conditions by deleting areas  on  your disk. If you use /=D, 
answer NO if it  offers  to delete anything. You should not ever have to use 
/=D.

Error  #04  does  not  harm  data and no  response  from  you  is required.   
In the normal course of events, Stacker corrects  the condition 
automatically.

Result

Stac  has modified SDEFRAG so that it automatically corrects  the condition  
that  resulted in error #04, so  you  won't  see  this message  again.  
You can download the new version (dated  01/06/93) from  the Stac Forum on 
CompuServe (GO STACKER) or from the  Stac BBS,  or  ask Stac Technical 
Support to send it to you. The new file is contained in a self-extracting Zip
file called STACUD.EXE. After you download the file, run it to extract the 
files it contains. One of these files is a text file that you can view with
any text editor. Follow the instructions in this file to update the files on 
your drive. If the files in your STACKER directory are dated 
01/06/93 or later, you already have a modified version of SDEFRAG on your 
disk.

When you run the modified version of SDEFRAG, you won't get error #04. Do not 
use the /=D switch on the CHECK command because it is for internal 
development use only.









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Copyright 1993, Stac Electronics