Hi,

We have a recurring problem with HFS under R7 only which is for the
moment stumping the good folks in DFSMS and Media Manager Level 2.

We initially saw SVC dumps 

Title=COMPID=DF185,CSECT=GFUZRDWR+3832,DATE=01/31/06,MAINTID=UA24063    
,ABND=0F4,RC=00000024,RSN=5BC20108    

02AUG 06:47:45 CONSOLE DUMPID=001 REQUESTED BY JOB (OMVS )              
02AUG 06:47:45 CONSOLE DUMP                                             
TITLE=COMPID=DF185,CSECT=GFUZIOER+0988,DATE=04/09/05,MAINT              
02AUG 06:47:45 CONSOLE ID=NONE ,ABND=0F4,RC=00000024,RSN=5BC50104       

HFS files corrupted several times and the symptom that makes it visible
quickly failed pipe connections in CICS

WED 8/02 during an IPL to upgrade to z/OS R7 we had the following msg   
and the HFS became corrupt:                                             
                                                                        
IGW027E HFS OMVS.PT01.CICS31.HFS                                        
 SYNC I/O ERROR. RC=00000024 RSN=5B260104                               
                                                                        
We recovered the file and the CICS folks re-established their pipes. The
file experienced the same SYNC error on Thurs 8/03.                     
We recovered the HFS again and this time set the MOUNT SYNC(0) PARM. At 
this time the file has NOT become corrupt again....HOWEVER....the CICS  
folks are having lots of issues establishing their pipe connections.
They
recv the following msg:                                                 
                                                                        
DFHPI0705 E 08/02/2006 06:51:45 CICSD5AV TRNCICS PIPELINE EXPIPE01      
encountered an error writing                                            
                                                                        
the configuration to the derived shelf                                  
/usr/lpp/cics31/CICSD5AV/PIPELINE/EXPIPE01/.                            
                                                                        
The response code from the HFS write was X'0000007A' and the reason code
was 'X'5B4B000C'                                                        
                                                                        
DFHPI0709 E 08/02/2006 06:51:45 CICSD5AV TRNCICS PIPELINE EXPIPE01      
resolution failed because the                                           
                                                                        
XML configuration file cannot be copied to the derived shelf.           
                                                                        
DFHPI0705 E 08/02/2006 06:51:45 CICSD5AV TRNCICS PIPELINE EXPIPE02      
encountered an error writing                                            
the configuration to the derived shelf                                  
/usr/lpp/cics31/CICSD5AV/PIPELINE/EXPIPE02/.                            
The response code from the HFS write was X'0000007A' and the reason code
was 'X'5B4B000C'                                                        
DFHPI0709 E 08/02/2006 06:51:45 CICSD5AV TRNCICS PIPELINE EXPIPE02      
resolution failed because the                                           
XML configuration file cannot be copied to the derived shelf.           
                                                                        
                                                                

The current diagnosis is unexpected I/O error from Media Manager with no
explanation.  They are working on that.

The best recommendation so far is convert all HFS files to ZFS before or
during the upgrade to R7.

Anyone seen anything remotely like this recently?   Maybe you didn't
report it to IBM because you thought it was a one-off or a procedural
error on your part. 

        Best Regards, 

                Sam Knutson, GEICO 
                Performance and Availability Management 
                mailto:[EMAIL PROTECTED] 
                (office)  301.986.3574 

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