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Unrecognized I/O error during write


IBM Mainframe Forums -> CLIST & REXX
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Pedro

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Joined: 01 Sep 2006
Posts: 2547
Location: Silicon Valley

PostPosted: Mon Dec 20, 2010 11:12 pm
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I agree with Enrico that you should not mix EXECIO with LMMPUT on the same dataset. If you need the ISPF statistics, then do all with LMMPUT instead of EXECIO.

You are missing an END statement, likely belongs after QUEUE.

Your last member data will probably not get written.
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Pedro

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PostPosted: Mon Dec 20, 2010 11:22 pm
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Quote:
Use PROFILE MSGID
and show us any messages you get. Also look in syslog for messages.

Sandy, you never showed us the actual messages that you are getting.
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sandy257

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Joined: 03 Feb 2010
Posts: 19
Location: Pune

PostPosted: Mon Dec 20, 2010 11:47 pm
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If I use the code to populate the PDS with members and write just a blank line in each member my routine runs fine.
This way I created 57 members in the PDS.

I got the messgae "Unrecognised I/O error during Write" when trying to write data into each member.
LMPUT error statement was also provided
(I will try to type the detailed error statement tomorrow from Office - can't copy paste)

When I tried with an Input dataset with records meant for 4 members (approximately 100 records) this code worked fine as well.

For this reason I am more inclined to believe that I faced some kind of space abend.

Another information is I am trying to execute this code from ISPF by typing "EX" against the REXX member within the PDS where the REXX routine is stored. Is it possible that I am running out of virtual memory while executing in this way?
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Pedro

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PostPosted: Tue Dec 21, 2010 5:00 am
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It is not clear what you are claiming is working correctly. I think this:
Code:
     "LMPUT DATAID("D") MODE(INVAR) DATALOC(DATAVAR) DATALEN(80)"
     "LMMADD DATAID("D") MEMBER("COPYBKNM") STATS(NO)"
Will create members that have only a single 80 byte line.

And this:
Code:
part1:
      DO
         ADDRESS TSO
         LINES = QUEUED()
         "EXECIO " LINES " DISKW COPYF"K
         "EXECIO 0 DISKW COPYF"K" (FINIS"
         DELSTACK
         K = K + 1
       END
part2:
     ADDRESS ISPEXEC
     "LMPUT DATAID("D") MODE(INVAR) DATALOC(DATAVAR) DATALEN(80)"
     "LMMADD DATAID("D") MEMBER("COPYBKNM") STATS(NO)"
has two parts:
part 1: writes a member with some unknown number of records
part 2: replaces all of the lines from part 1 with a single line.

Oh, and DATAVAR does not seem to be set, so you probably are not going to get any of the data that you want.
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sandy257

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Joined: 03 Feb 2010
Posts: 19
Location: Pune

PostPosted: Tue Dec 21, 2010 11:37 am
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Hi All.. thanks a lot for your time and patience. The problem has been resolved.

Special thanks to Enrico and Pedro to keep LM functions out and stick only to EXECIO. The code worked after I removed the LM functions.

Thanks a lot Pedro for pointing out that the last member will never get populated. I have modified my code accordingly.
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Marso

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Joined: 13 Mar 2006
Posts: 1353
Location: Israel

PostPosted: Tue Dec 21, 2010 8:43 pm
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And for good measure, I would add a
Code:
"FREE  FI(COPYF"K")"

for each
Code:
"ALLOC FI(COPYF"K")"

just in case...
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sandy257

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Posts: 19
Location: Pune

PostPosted: Tue Dec 21, 2010 10:37 pm
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Point taken Marso!!!
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