Different max size of jfs filesyst. on AIX 3.2.5 ver. 4.1

ITEM: RTA000079000

I believe there will be no problem exporting a non root VG created on           
a 3.2.5 system and then import it on an AIX 4.1 system. I think this            
will be the way to do it when our customers start their migration               
to AIX 4.1. But can you EXPAND a jfs filesystem CREATED on AIX 3.2.5            
to a size BEYOND 2BG which is the limit on 3.2.5??                              
                                                                                
                                                                                
ANSWER                                                                          
I found that one can expand a jfs filesystem created on AIX 3.2.5 to a          
size beyond 2GB when you import them to an AIX 4.1 system.  Today, I            
unmounted, and transfered two 670MB hard drives from an AIX 3.2.5 system        
to a AIX 4.1 system which already contained a 1GB hard drive.  This made        
a total of 2.34GB of hard drive space.  Thereafter, I used the importvg         
command to import the volume group.  Next, I varied the volume group            
using the varyonvg command.  I then mounted the filesystem.                    
Finally, I allocated another 1.1GB for the filesystem to make a total           
of 2.2GB for the filesystem.  It was successful.                                
                                                                                
Therefore, you can expand a jfs filesystem created on AIX 3.2.5 to a            
size beyond 2GB when you import it to an AIX 4.1 system.                        
                                                                                
S e a r c h - k e y w o r d s:                                                  
AIX 4.1 FILESYSTEMS                                                             
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                               



WWQA: ITEM: RTA000079000 ITEM: RTA000079000

Dated: 10/1995 Category: ITSAI6000GE

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