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yogeshwar_ade
Active User
Joined: 31 Aug 2006
Posts: 103
Location: INDIA
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Hi All,
I want to know whats the Use of REPLICATE/IMBED keyword in IDCAMS utility...
Also If anybody can tell me what will be affection on JCL, if I remove these keyword. |
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murmohk1
Senior Member
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Joined: 29 Jun 2006
Posts: 1436
Location: Bangalore,India
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Yogeshwar,
| Quote: |
| I want to know whats the Use of REPLICATE/IMBED keyword in IDCAMS utility... |
Please refer manaul. Its clearly mentioned in that.
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| Also If anybody can tell me what will be affection on JCL, if I remove these keyword. |
JCL is NOT IN LOVE (affection) with these words. You can gladly remove these. |
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yogeshwar_ade
Active User
Joined: 31 Aug 2006
Posts: 103
Location: INDIA
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| I want to know, If i Remove these keyword and submit the JOB , which kind of error it will give |
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murmohk1
Senior Member
Joined: 29 Jun 2006
Posts: 1436
Location: Bangalore,India
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Yogeshwar,
| Quote: |
| I want to know, If i Remove these keyword and submit the JOB , which kind of error it will give |
As suggested, if you really had gone thru the manual, Im sure you wouldn't be asking this question. |
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enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
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| Quote: |
| I want to know, If i Remove these keyword and submit the JOB |
/rudeness on :-)
why don't You try it and post the results ???
/rudeness off
Anyway
replicate and imbed are leftovers from the old times when the
DASD subsystems were slow and there were no cached control units.
"IMBED" means that the sequence set for a VSAM KSDS cluster was positioned on the first track of a cylinder
in order to avoid a seek for the real data transfer
"REPLICATE" means replicate in the index component the index block as many times it would fit on a track,
in order to avoid any rotational delay
For the current technology
"IMBED" might be irrelevant
"REPLICATE" might yield a slight performance penalization
- duplicating into the cache useless copuies of the same info
regards
e.s |
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expat
Global Moderator
Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
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As Enrico has said, these parms are for the benfit of "Classic DASD".
In later releases of z/OS these are no longer supported. |
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