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Determining the size of the XCF note pad catalog structure z/OS MVS Setting Up a Sysplex SA23-1399-00 |
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XCF maintains an entry in the note pad catalog structure for each note pad defined in the sysplex. The size of the note pad catalog structure is proportional to the number of note pads that can be defined in the sysplex. The following table shows sample catalog structure sizes for different note pad counts, assuming the coupling facility is at CFLEVEL 18.
The CF Structure Sizer (CFSizer) can also be used to simplify the task of calculating the size of the note pad catalog structure. The IBM® CF Structure Sizer (CFSizer) can be accessed at http://www.ibm.com/systems/support/z/cfsizer/. To size the catalog structure, click on the OEM link and input the catalog structure attributes. When determining the size of the note pad catalog structure, consider the following required structure attributes:
After determining the estimated structure size, if you need to change the coupling facility structure size later, you can do so using either of the following two methods:
Note: No new note pads can be created in the sysplex if there is not
enough space in the note pad catalog structure, and this condition
might cause certain applications to fail.
The following references contain more information:
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