z/OS MVS Initialization and Tuning Guide
z/OS MVS Initialization and Tuning Guide
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Example 2: Sizing the PLPA page data set, size of the PLPA and extended PLPA known z/OS MVS Initialization and Tuning Guide SA23-1379-02 |
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Assume the PLPA size is known to be 10 megabytes. Define the PLPA page data set to hold 10 megabytes plus 5%, or 10.5 megabytes. (The extra 5% allows for loss of space as a result of permanent I/O errors.) Therefore: From the tables, 18 cylinders on a 3380 are needed for the 10.5-megabyte PLPA page data set. For the 3390, 15 cylinders are needed for the 10.5-megabyte PLPA page data set. Note: This example provides no warm start
capability. If installed, SCM can provide warm start capability.
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