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What is the difference between CI( Control Interval)and CA
(Control Area)?

Question Posted / guest

Answers were Sorted based on User's Feedback



What is the difference between CI( Control Interval)and CA (Control Area)?..

Answer / kalyan rakesh

VSAM groups logical records into blocks called control
interval.
control intervals are inturn grouped into control areas.

A control interval consists of 1)data records
2)free space
3)unused space
4)control information of
a)RDF
b)CIDF
collection of adjacent CI s is CA.

Is This Answer Correct ?    15 Yes 0 No

What is the difference between CI( Control Interval)and CA (Control Area)?..

Answer / rameez akhtar

In vsam data sets data is stored in CIs & CAs, CI is small
unit and CA is big unit, a ca contain more then one CIs, CI
have four components
Data
CISF
RDF
Free space
CA also have free space in between records, that space is
used when new records added to the data set can not fit in
the free space of CIs.

Is This Answer Correct ?    2 Yes 0 No

What is the difference between CI( Control Interval)and CA (Control Area)?..

Answer / rohan

Area occupied by the vsam cluster is divided into contiguous area called as control interval.
Area occupied by the control interval is known as control area.

Is This Answer Correct ?    2 Yes 0 No

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