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| VSAM ESDS or KSDS |
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| chandana06 |
 Posted: Wed Feb 22, 2006 10:30 am Post subject: VSAM ESDS or KSDS |
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Apprentice
Joined: 26 Jan 2006
Posts: 32
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Hi,
I have a requirement:
A VSAM file is required. This will always contain only one record of length 20.
This record will be read by a program once every 1 minute.
Taking performance also into consideration.
which access method is better ESDS or KSDS
_________________
Regards,
Chandana |
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| rtsujimoto |
| Posted: Wed Feb 22, 2006 11:01 am Post subject: |
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Centurion
Joined: 16 Jun 2004
Posts: 119
Location: Lake Success, NY
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| IIRC, if you assign the KSDS to a low use LSRPOOL, there's a good chance the CIs will remain in storage and any reference to the record will result in accessing memory vs. disk. |
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| chandana06 |
| Posted: Wed Feb 22, 2006 11:05 am Post subject: |
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Apprentice
Joined: 26 Jan 2006
Posts: 32
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ThankQ for the reply, rtsujimoto
So you mean to say that if i set these parameters defining file as KSDS would be better compared to Defining it as ESDS
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Regards,
Chandana |
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| rtsujimoto |
| Posted: Fri Feb 24, 2006 12:22 pm Post subject: |
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Centurion
Joined: 16 Jun 2004
Posts: 119
Location: Lake Success, NY
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| Given that it's only 1 record and the access is (for the most part) memory vs. disk, I don't think it makes a difference. |
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