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Chapter 5. Installation Considerations
This chapter describes the following changes of interest to the system programmer
installing OS/390 Release 4 Security Server (RACF):
Virtual storage considerations
Templates
RACF Storage Considerations
This section discusses storage considerations for RACF.
Using the RACF DB2 external security module increases the number of profiles in
the RACF database. Therefore, if you plan to use the RACF DB2 external security
module, recalculate the amount of storage that is needed. If there is not enough
storage, you should increase the size of the RACF database.
Virtual Storage
Figure 11 estimates RACF virtual storage usage for planning purposes.
Figure 11 (Page 1 of 3). RACF Estimated Storage Usage
Storage
Subpool Usage How to Estimate Size
FLPA RACF service routines, if IMS or CICS
is using RACF for authorization
checking
47 000
RACROUTE REQUEST=FASTAUTH
and ICHRTX00 exits
Measure using AMBLIST
PLPA RACF installation exits that are
AMODE(24) or AMODE(ANY)
Measure using AMBLIST
RACF RMODE(24) code 750
RACF service routines, if IMS or CICS
is not using RACF for authorization
checking, unless explicitly removed
from SYS1.LPALIB and placed
elsewhere for use in FLPA
47 000
RACROUTE REQUEST=FASTAUTH
and ICHRTX00 exits
Measure using AMBLIST
RACF range table 4 + (number_of_ranges × 45)
EPLPA RACF installation exits that are
AMODE(31)
Measure using AMBLIST
RACF resident modules above 16MB 875 000
SQA RACF communications vector table and
extension
2800
Class descriptor table (CNST) and
RACF router table
7500 + 58 × number_of_customer_defined_classes
Copyright IBM Corp. 1994, 1997 25