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Rajkannan
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Joined: 02 Jun 2004
Posts: 64
Topics: 31
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 Posted: Mon Nov 12, 2007 9:40 am Post subject: PSB |
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Hi,
I am working on Impact analysis for a IMS Application , The total no of PGM is 100 , while No of PSB are 200. From my knowledge I understand
each PGM will have a PSB , The client says there no obselete PSB. Can someone explain me why there are 200 PSB's? |
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Rajkannan
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Joined: 02 Jun 2004
Posts: 64
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| Posted: Mon Nov 12, 2007 10:10 am Post subject: PSB |
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Can this be a reason ,
Same program accessing different PSB for different run. |
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Rajkannan
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Joined: 02 Jun 2004
Posts: 64
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| Posted: Mon Nov 12, 2007 2:43 pm Post subject: PSB |
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Same program accessing different PSB with different run.
PGM1 accessing PSB1 having PCB to read database1
PGM1 accessing PSB2 having PCB to update database1
PGM1 accessing PSB3 having PCB to delete in database1
PGM1 accessing PSB4 having PCB to insert in database1
or
PGM1 running under DL/I mode using PSB1 for Database1
PGM1 running under BMP mode using PSB2 for Database1 |
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Rajkannan
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Joined: 02 Jun 2004
Posts: 64
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| Posted: Mon Nov 12, 2007 2:47 pm Post subject: PSB |
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| Can someone confirm the above |
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rajat_gupta
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Joined: 30 May 2007
Posts: 13
Topics: 5
Location: India
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| Posted: Tue Nov 13, 2007 7:45 am Post subject: |
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Hi Rajkannan,
One PSB can have multiple PCB's to read/update the database.For different run a different PCB might be used but normally the PSB remains same.
| Quote: |
PGM1 running under DL/I mode using PSB1 for Database1
PGM1 running under BMP mode using PSB2 for Database1
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We use same PSB for DLI/BMP call.
_________________
Rajat Gupta
when depressing thoughts seem to get you down
Put a smile on your face and thank God you're alive and still around. |
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kolusu
Site Admin
Joined: 26 Nov 2002
Posts: 12378
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Location: San Jose
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| Posted: Tue Nov 13, 2007 12:54 pm Post subject: |
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| Quote: |
Can someone explain me why there are 200 PSB's?
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Rajkannan,
If plan to run the same pgm simultaneously then you need 2 PSB's.
_________________
Kolusu
www.linkedin.com/in/kolusu |
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ash_sudp
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Joined: 17 May 2006
Posts: 12
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| Posted: Sun Nov 18, 2007 4:16 am Post subject: |
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| Check if these are programs that are only batch or both batch and online. |
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Pradeep25
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Joined: 04 Dec 2007
Posts: 2
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Location: Salt Lake City
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| Posted: Wed Dec 05, 2007 2:29 am Post subject: |
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| kolusu wrote: | | Quote: |
Can someone explain me why there are 200 PSB's?
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Rajkannan,
If plan to run the same pgm simultaneously then you need 2 PSB's. |
I agree with above. In order to avoid contention, if multiple jobs are executing same program then we usually keep separate PSBs for each job. |
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