Pete Wilson
Active Member
Joined: 31 Dec 2009
Posts: 582
Location: London
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May be worth looking at some of the IAM tuning options that can be modified through the //IAMOVRID DD * when you define the VSAM file, and also check that the Global Options are set to optimal values.
Add the //IAMINFO DD SYSOUT=* which will produce a report with useful information about the file and how it is used.
Innovation also recommend defining IAM files are Large Format by coding DSNTYPE=LARGE in a Create Override.
Contacting Innovation may be worthwhile as well. |
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