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Grouping Related Control Blocks in a Paging Environment z/OS DFSMS Using Data Sets SC23-6855-00 |
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Code related control blocks (the DCB and DECB) and data areas (buffers and key areas) so they reside in the same area of your program. This reduces the number of paging operations required to read from and write to your data set. Rule: DCB and DECBs must reside below 16 MB, but their central storage addresses can be above the 2 GB bar. |
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