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Navigation: Installation > z/OS Installation > Product Installation using JCL

Step 4. Allocate the CNTL (JCL) Library

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Allocate a z/OS partitioned dataset, SQDATA.V4nnnn.CNTL to store the JCL using the following attributes. We recommend naming installation libraries with the full ver/rel/build, i.e. V40031. Production libraries are often named with only the ver/rel, ie V400 to minimize the impact of upgrades on existing JCL, Procs, Parms, etc.

 

Attributes

Value

Organization

PO

Directory Blocks

50

Record Format

FB

Record Length

80

Block Size

21200

1st Extent Blocks

100

2nd Extent Blocks

50