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Jai
Beginner
Joined: 06 Jun 2003
Posts: 57
Topics: 20
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 Posted: Fri Jun 06, 2003 9:30 pm Post subject: DYNAMNBR &Copying GDGs |
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Hi,
We usually give DYNAMNBR=20 in our JCL's.
Please let me know more details about DYNAMNBR and the actual use of it.
Also please let me know for copying all the contents of all the generations of one GDG to other GDG through File-Aid.
Thanks in advance.
_________________
Have a Great Day.
Thanks & Regards,
Jai |
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dalaly
Beginner
Joined: 29 Nov 2002
Posts: 56
Topics: 23
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| Posted: Sat Jun 07, 2003 6:20 pm Post subject: |
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Hi Jai,
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We usually give DYNAMNBR=20 in our JCL's.
Please let me know more details about DYNAMNBR and the actual use of it.
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Dynamic allocation allows a job to acquire resources as they are needed and release them immediately after use. The resources are a ddname-data set combination with its volumes and devices.
One reason to use dynamic allocation is that you may not know all of the device requirements for a job before execution. Another reason is that it allows the system to use resources more efficiently; that is, the system can acquire resources just before their use and release them immediately after use.
The system uses the sum of this number, in your case 20, and the number of DD statements in the step to establish a control limit for tracking resources that it is holding in anticipation of reuse.
| Quote: |
Also please let me know for copying all the contents of all the generations of one GDG to other GDG through File-Aid.
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In FILEAID goto the utilities option ==> copy option ==> in the FROM section you can put the GDG base and in the TO section put your new gdg.
FYI - We have many reference manuals on our homepage which have lot's of useful information.
Best regards,
-dalaly |
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Jai
Beginner
Joined: 06 Jun 2003
Posts: 57
Topics: 20
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| Posted: Wed Jun 11, 2003 10:53 am Post subject: |
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Hi,
Thanks a lot! for you answer.
Can we create the GDG base itself, if not exists, while copying as we do it in PS Copy in 3.3 ISPF Menu.
Please let me know.
_________________
Have a Great Day.
Thanks & Regards,
Jai |
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Ranjish
Beginner
Joined: 22 Dec 2002
Posts: 64
Topics: 28
Location: Chennai
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| Posted: Wed Jun 11, 2003 12:41 pm Post subject: |
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Jai,
We cannot create a GDG base using 3.3. You have to use fileaid or some IDCAMS utility to create a GDG.
cheers
Ranjish |
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Premkumar
Moderator
Joined: 28 Nov 2002
Posts: 77
Topics: 7
Location: Chennai, India
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| Posted: Fri Jun 13, 2003 1:47 am Post subject: |
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| or use 3.2 |
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