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Max & min size of CI & CA in VSAM

 
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vijaykorde
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PostPosted: Thu Jan 25, 2007 1:02 pm    Post subject: Max & min size of CI & CA in VSAM
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Hi,

Can anyone tell me the exact Min. & Max. size of CI & CA
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pravena

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PostPosted: Wed Feb 07, 2007 1:39 pm    Post subject:
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Control Interval is analogous to a physical block for QSAM
files. It is the unit of I/O. Must be between 512 bytes to
32 k.
Usually either 2K or 4K. A larger control interval
increases performance for sequential processing while the
reverse is true for random access. Under CICS when a record
is locked, the entire CI gets locked.

Control Area is a group of control intervals. CA is used
during allocation. CA size is calculated based on the

allocation type (cyl, tracks or records) and can be max of 1
cylinder
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vijaykorde
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PostPosted: Wed Feb 07, 2007 5:38 pm    Post subject: Re: Max & min size of CI & CA in VSAM
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Thank Yoy Very Much pravena
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