What is Control Interval, Control Area?
- 1 Answers
- 4350 Views
- I also Faced
- E-Mail Answers
Answer / guest
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
| Is This Answer Correct ? | 1 Yes | 0 No |
Is it slower if you access a record through alt index as compared to primary index?
what is vsam catalog ?
What is a sequence set?
Can you delete vsam files with the delete option of the disposition parameter of jcl?
What is a cluster?
can i see how many records does a vsam file have without browsing or without using file-aid? and same for ps file?
What are the access method services used in vsam?
what are the additional information you should give in the dd statement while defining the next generation of a gdg?
explain the differences between vsam and non-vsam files
what do you mean by define model parameter?
what do you mean by a shareoptions parameter (shr) in define cluster command?
In the COBOL SELECT statement for a KSDS what are the three possibilities for ACCESS?
COBOL 
