In this disk first aid error message, 
is 86989 the physical end of file or the logical end of file?... 

     ATA Bus O Dev O, 
     (Startup Disk) 
     
     Checking disk "Macintosh HD" 
     ... 
     Problem: Invalid PEOF,86989,26 
     Test done. Problems were found, but Disk 
     First Aid cannot repair them. 



2. 
How do you interpret top to bottom and left to right in the diagram at 
http://docs.info.apple.com/article.html?artnum=16231 



3. 
Where do the labels file, data, ok refer to on the diagram?... 

Which of the broken lines in the diagram at 
http://docs.info.apple.com/article.html?artnum=16231 
do each of the labels refer to exactly?... 
     FILE 
     DATA 
     OK


The context here is regarding the 333 MHz 96MB RAM cd tray iMac OS 8.6