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Dataset got deleted

 
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Escapa

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Posts: 1399
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PostPosted: Wed Dec 12, 2012 6:01 am    Post subject: Dataset got deleted
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Systems programmers are checking about this issue but I thought i would post here too.

We have a job for which STEP140 creates dataset and is used in STEP145
Step 145 runs quickjob program and creates an output dataset. Below is snipet of jcl
Code:

28 XXSTEP140 EXEC PGM=SORT
29 XXSORTIN01 DD  DSN=A.B.C.D1(0),
   XX             DISP=OLD
30 XXSORTIN02 DD  DSN=A.B.C.D2,
   XX             DISP=(OLD,DELETE,KEEP)
31 XXSORTIN03 DD  DSN=A.B.C.D3(0),
   XX             DISP=OLD
32 XXSORTIN04 DD  DSN=A.B.C.D4(0),
   XX             DISP=OLD
33 XXSORTOUT  DD  DSN=A.B.C.D5,LABEL=EXPDT=99000,
   XX             DISP=(,CATLG,DELETE),
   XX             UNIT=CART,
   XX             VOL=(,RETAIN,,35),
   XX             RECFM=FB,LRECL=168,DSORG=PS
34 XXSYSIN    DD  DSN=HLQ.PARMLIB(XYZ),
   XX             DISP=SHR
35 XXSYSOUT   DD  RECFM=VBA,
   XX             LRECL=125,SYSOUT=V
36 XXSYSUDUMP DD  SYSOUT=D
   XX*___________________________________________________
37 XXSTEP145 EXEC PGM=QUIKJOB
38 XXSYSUT1   DD  DSN=A.B.C.D5,
   XX             DISP=(OLD,DELETE,KEEP)
39 XXSYSUT2   DD  DSN=A.B.C.D6,LABEL=EXPDT=99000,
   XX             DISP=(,CATLG,DELETE),
   XX             UNIT=CART,
   XX             VOL=(,RETAIN,,35),
   XX             RECFM=FB,LRECL=168,DSORG=PS
40 XXERRORRPT DD  SYSOUT=(W,ERPT),
   XX             RECFM=FBA,LRECL=166
41 XXSUMRPT   DD  SYSOUT=O,                 
   XX             RECFM=FBA,LRECL=133
42 XXSYSIN    DD  DSN=HLQ.VISION(ABC),
   XX             DISP=SHR
43 XXSYSOUT   DD  SYSOUT=V
44 XXSYSPRINT DD  RECFM=FBA,
   XX             LRECL=133,SYSOUT=V
45 XXSYSUDUMP DD  SYSOUT=D


Now when A.B.C.D6 is in catalogue and if I restart the job,
I am not understanding why A.B.C.D5 is getting uncatalogued\deleted.

Code:

this is from step 140
.IGD108I A.B.C.D5                          CATALOGED, DDNAME=SORTOUT
.        VOLUME SERIAL NUMBERS =
.        917840


Code:

IEF236I ALLOC. FOR PCMPSD STEP145 PCMPSD
IGD100I 06A9 ALLOCATED TO DDNAME SYSUT1
IGD100I 06BA ALLOCATED TO DDNAME SYSUT2
        STORCLAS (VTSREG) MGMTCLAS (VTSBOTH) DATACLAS (VTS4GB)
IEF237I JES3 ALLOCATED TO ERRORRPT
IEF237I JES3 ALLOCATED TO SUMRPT
IGD103I SMS ALLOCATED TO DDNAME SYSIN
IEF237I JES3 ALLOCATED TO SYSOUT
IEF237I JES3 ALLOCATED TO SYSPRINT
IEF237I JES3 ALLOCATED TO SYSUDUMP
IEC205I SYSUT2,PCMPSD,STEP145,FILESEQ=1, COMPLETE VOLUME LIST,
DSN=A.B.C.D6,VOLS=918408,TOTALBLOCKS=177334
IEF142I PCMPSD STEP145 PCMPSD - STEP WAS EXECUTED - COND CODE 0000
IEF285I   A.B.C.D5                          UNCATALOGED
IEF285I   VOL SER NOS= 917840.
IEF285I   A.B.C.D5                          DELETED
IEF285I   VOL SER NOS= 917840.
IGD17101I DATA SET A.B.C.D6
NOT DEFINED BECAUSE DUPLICATE NAME EXISTS IN CATALOG
RETURN CODE IS 8 REASON CODE IS 38 IGG0CLEH
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Robert Sample

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PostPosted: Wed Dec 12, 2012 6:28 am    Post subject:
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Because A.B.C.D5 has DISP=(OLD,DELETE,KEEP) and the step ran to zero completion code, so it is deleted. The presence of A.B.C.D6 in the catalog does NOT cause an abend hence the KEEP will not occur.
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Escapa

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Joined: 16 Feb 2007
Posts: 1399
Location: IL, USA

PostPosted: Wed Dec 12, 2012 7:37 am    Post subject:
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But shouldn't step not execute as output dataset is present in catalogue?

Whats the way out in such case?

Today, we had this case where input A.B.C.D5 got deleted and output A.B.C.D6 did not get created as duplicate name was present.

We were lucky that A.B.C.D5 was tape dataset and wasnt scratched yet so we could re-catalogue to rerun the job.
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gcicchet

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PostPosted: Wed Dec 12, 2012 11:44 am    Post subject:
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Hi,

that seems to only apply to disk datasets ie. step would have not executed and failed with JCL error.

The only suggestion I have is to change to a GDG.


Gerry
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Nic Clouston

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PostPosted: Wed Dec 12, 2012 1:58 pm    Post subject:
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or insert a clean-up step before step 145
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David Robinson

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PostPosted: Wed Dec 12, 2012 2:00 pm    Post subject:
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Shouldn't this result in a NOT CATLGD 2 ?

I seem to recall an option somewere that then determines whether these cause the job to fail with a JCL error or not.
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Robert Sample

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PostPosted: Wed Dec 12, 2012 5:25 pm    Post subject:
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Quote:
But shouldn't step not execute as output dataset is present in catalogue?

Whats the way out in such case?
Why would the presence of an output data set in the catalog keep the step from running? If this were the case, system programmers would have a harder time since it is not uncommon for a system programmer to create a data set on a disk volume EVEN THOUGH THAT DATA SET IS CATALOGED ON ANOTHER DISK VOLUME so the system programmer can then uncatalog the data set and catalog the data set just created.

There actually is not much of a way out in this case, since your system is working precisely as IBM designed it. A system may have MANY data sets with the exact same name -- only one of them can be in the catalog but there is no limit on how many can be created -- so your expectation that the job will not run if an output data set is cataloged is, quite simply, totally unrealistic.
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dick scherrer

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PostPosted: Wed Dec 12, 2012 9:06 pm    Post subject:
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Hello,

Suggest some invest the time to review / revise the process so this "out of sync" condition cannot occur. . .
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gcicchet

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PostPosted: Thu Dec 13, 2012 2:56 am    Post subject:
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Hi,

by the way DISP=(OLD,DELETE,KEEP) will delete the dataset regardless of what the completion code is.



Gerry
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Gary McDowell

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PostPosted: Thu Dec 13, 2012 4:02 am    Post subject:
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Possibly change DISP of A.B.C.D5 in STEP145 to OLD
and then delete A.B.C.D5 as the last step of your job.
A.B.C.D5 will still be CATLGed for any restarts.
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Escapa

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PostPosted: Thu Dec 13, 2012 6:23 am    Post subject:
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Disp of A.B.C.D5 is changed to OLD,KEEP,KEEP AND IEFBR14 at end to DELETE it.
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Nic Clouston

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PostPosted: Thu Dec 13, 2012 2:47 pm    Post subject:
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Quote:
Disp of A.B.C.D5 is changed to OLD,KEEP,KEEP
does not change its disposition - it still remains catalogued.
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dick scherrer

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PostPosted: Thu Dec 13, 2012 8:03 pm    Post subject:
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Hello,

Until the IEFBR14 at the end to delete it?
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Gary McDowell

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PostPosted: Thu Dec 13, 2012 8:55 pm    Post subject:
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dick scherrer wrote:
Hello,

Until the IEFBR14 at the end to delete it?

Yes, dataset A.B.C.D5 will remain CATLG-ed from STEP145 and then deleted in last step.
I like this non-GDG setup/technique in case any restarts are needed.
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Anuj Dhawan

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PostPosted: Mon Dec 31, 2012 6:59 pm    Post subject:
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With SMS, KEEP is equivalent to CATLG - the data set will be kept on the volume when the step ends normally. And KEEP is the only valid termination disposition for a VSAM data set.VSAM files shouldn't be cataloged, uncataloged, passed, or deleted - and I hope you are at an SMS shop.(no - icon_eek.gif)
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