In a JCL job, you have a dataset with a BLKSIZE of 4096, and each record is 80 bytes. How many records can fit in one block, and what impact does this have on I/O performance?
- 128 records
- 32 records
- 50 records
- 64 records
BLKSIZE/Record Length = Number of records per block. Smaller blocks can lead to higher I/O overhead, while larger blocks may result in inefficient space utilization. Choosing an optimal size is crucial for I/O.
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