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Message Posted: Sat, 18 Aug 2007 @ 08:36:40 GMT


     
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Subj:   Re: Recover VSN from header tape with ASF2
 
From:   Geoffrey Rommel

  I wonder if someone know how to read the header of the tape to extract the correct VSN of the tape?  


Is this on MVS (z/OS)? If so, you can read the header by telling JES that this is an unlabeled tape. It will then read the labels as if they were the first data set on the tape. Sample JCL below. Of course, the operator has to know which tape to mount.

If it's on Unix, I'm not sure. Try running dd on the raw device.

     //* SAMPLE JCL -- FROM MEMORY -- PROBABLY NOT CORRECT!
     //GENER    EXEC PGM=IEBGENER
     //SYSPRINT DD SYSOUT=*
     //SYSUT1   DD DSN=ANY.NAME.AT.ALL,
     //            UNIT=TAPE,LABEL=(1,NL),      'UNLABELED' TAPE
     //            VOL=????,    TELL OPERATOR WHICH TAPE TO MOUNT
     //            DISP=SHR,
     //            DCB=(RECFM=F,LRECL=80)
     //SYSUT2   DD SYSOUT=*
     //SYSIN    DD DUMMY
     //*


     
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