LOCAL PAGE DATA SET Policy Item
With the automation of local page data sets, SA z/OS prevents auxiliary storage shortage outages, by dynamically allocating spare local page data sets when needed.
When you select the LOCAL PAGE DATA SET policy item the Local Page Data Set Recovery panel is displayed, as shown in Figure 1.
COMMANDS HELP
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AOFGLCLP Local Page Data Set Recovery Row 1 to 6 of 20
Command ===> SCROLL===> PAGE
Entry Type : Group PolicyDB Name : USER_PDB
Entry Name : SYSPLEX_GROUP_01 Enterprise Name : USER_ENTERPRISE
Page Data Set HLQ . . . . . SPARE.PAGE
Data set HLQ (max. 23 chars)
Number of Cylinders . . . . 400 100-999
Page Data Set Volumes . .
SP1Z61 SP1Z62 SP1Z63
Spare Page Data Sets
SPARE.PAGE.&SYSPLEX..LOCAL.DS1
SPARE.PAGE.&SYSPLEX..LOCAL.DS2
Fill in the following fields:
- Page Data Set HLQ
- Defines a high level qualifier that is used to assemble a data set name for creating and allocating a page data. The qualifier can consist of up to 23 characters and must follow the naming conventions of MVS data sets (hlq.hlq2.hlq3). The high level qualifier must point to the master catalog and must not be SMS managed.
- Number of Cylinders
- Defines the maximum number of cylinders (100 to 999) used for the dynamic allocation of a local page data set. The default value is 400. Note that on a 3390 DASD, 100 cylinders is adequate to 70 MB and the formatting process takes approximately 20 seconds for this amount of space.
- Page Data Set Volumes
- Defines a list of volume IDs which are eligible when the automation is creating and allocating a new page data set. The volumes must be shared by all systems in the sysplex. You can specify a list of 8 volume IDs, separated by commas or blanks.
- Spare Page Data Sets
- Defines the pre-formatted spare page data set to be used in the
recovery situation. Specify the names without quotes. You can include
system symbols and system automation symbols (see Assigning System Automation Symbols (AOCCLONE)).
The data sets must be allocated on a volume shared by all systems
in the sysplex and must be catalogued in the master catalog. In case
the systems in the sysplex do not share the master catalog, the page
data set must be re-catalogued on each system except the one which
created the data set using the following IDCAMS statement:
DEF PAGESPACE(NAME(lpdsn) VOLUME(volume) RECATALOG)