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PDSFAST VERIFY - What does it really do ?


 
IBM Mainframe Forums -> JCL & VSAM
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shetttigarvivek

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Joined: 15 Aug 2012
Posts: 1
Location: Singapore

PostPosted: Tue Nov 29, 2016 9:21 am
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I have come across PDSFAST and cant really find any documentation explaining the supported sysin cards on the internet.

Code:
//VERIFY   EXEC PGM=PDSFAST,                                           
//            REGION=4096K                                             
//SYSPRINT DD SYSOUT=*
//PDS      DD DSN=&NAME, DISP=SHR                                           
//SYSUT3   DD UNIT=SYSDA,  SPACE=(CYL,(5,5))                                             
//SYSUT4   DD UNIT=SYSDA,  SPACE=(CYL,(5,5))                                               
//SYSIN    DD *
 VERIFY INDD=PDS,LIST=NO     
/*


I have to migrate this onto Linux. So i was wondering what the VERIFY really does.
I found a link that says
Its checking for I/O errors. What does this really mean for a PDS ?

Thanks !
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steve-myers

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Joined: 30 Nov 2013
Posts: 862
Location: The Universe

PostPosted: Tue Nov 29, 2016 11:16 am
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These are things I think it should be looking for
  • All PDS data sets -
    • Wrong length records and true I/O errors
    • First record address in a directory does not point to a true first record
    • Directory problems
      • Unkeyed records
      • Missing EOF entry
      • Other format problems

  • Load modules
    • First text record address in directory does not point to a valid text record
    • Number of control or control/rld records for the first text record on the directory entry is wrong
    • Conflict between first record data in directory entry and similar data in the control record for the first text record
    • Multiple format issues in control and control/rld records.
    • Count of control and control/rld records in control or control/rld record for a text record are wrong

I'm sure there are things I missed, but this would get you started.
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