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What is the of this Control CARD consisting in IMS-DB JCL?

 
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ramu_mohan21
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Joined: 29 Jun 2004
Posts: 106
Topics: 41
Location: Bangalore, INDIA
PostPosted: Sat Nov 13, 2004 9:53 pm    Post subject: What is the of this Control CARD consisting in IMS-DB JCL? Reply with quote
Hi Board,
I found in the IMS-Database accessing JCL. I found below Control Card

Quote:

//DFSVSAMP DD DSN=TEST.PROD.CARDS.STG(DFSVSAMP),DISP=SHR


I saw in the related PDS regarding DFSVSAMP. The below information is available in that meber.
Quote:

VSRBF=32768,15
VSRBF=16384,15
VSRBF=8192,15
VSRBF=4096,15
VSRBF=2048,15
VSRBF=1024,15
IOBF=(1024,15,N,N)
IOBF=(2048,15,N,N)
IOBF=(4096,15,N,N)
IOBF=(8192,15,N,N)
IOBF=(16384,15,N,N)
IOBF=(32768,15,N,N)
OLDSDEF OLDS=(00,01,02,03,04,05,99),BUFNO=005,MODE=DUAL
WADSDEF WADS=(0,1,2)


Anyone can explain me regarding above shown information.
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Rammohan Pabba
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kolusu
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Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose
PostPosted: Sun Nov 14, 2004 7:18 pm    Post subject: Reply with quote
Ramu_mohan21,

DFSVSAMP DD is used to define the following:

  • Size and number of buffers in a subpool

  • Number and use of local shared resource pools

  • Whether sequential buffering is to be used

  • Various performance and trace options

  • DASD logging data set requirements

  • Whether dynamic allocation for IMS batch is to be used

  • Coupling facility structure names for sysplex data sharing

  • Caching option for the OSAM subpools.


The DFSVSAMP DD statement performs the same function in an IMS batch system that the DFSVSMxx DD statement performs in an online system. In a batch system, the control statements defining the preceding options are in a data set with the ddname of DFSVSAMP; in an online system, the control statements are in a member of the IMS.PROCLIB data set with the member name of DFSVSMxx.


Check this link for a detailed explanation of Member DFSVSMxx

http://publib.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/DFSI20E1/7.2.17?DT=20010412140454

Hope this helps...

Cheers

kolusu
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ramu_mohan21
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Joined: 29 Jun 2004
Posts: 106
Topics: 41
Location: Bangalore, INDIA
PostPosted: Tue Nov 16, 2004 11:31 am    Post subject: Reply with quote
Hi Kolusu,
Thank you very much for he detailed explanation.
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Rammohan Pabba
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