IBM GC28-1920-01 manual RACF Storage Considerations, Virtual Storage, Size

RACF Storage Considerations

This section discusses storage considerations for RACF.

Virtual Storage

Figure 21 estimates RACF virtual storage usage, for planning purposes.

Figure 21

(Page

1

of

2).

RACF Estimated Storage Usage

Storage Subpool

Usage

How

to

Estimate

Size

FLPA

RACF

service

routines,

if

IMS

or

CICS

is47using000

RACF

for

authorization

checking

RACROUTE

REQUEST=FASTAUTH

and

Measure

using

AMBLIST

ICHRTX00

exits

PLPA

RACF

installation

exits

that

are

AMODE(24)

Measureor

using

AMBLIST

AMODE(ANY)

RACF

RMODE(24)

code

750

RACF

service

routines,

if

IMS

or

CICS

is47not000

using

RACF for authorization checking, unless

explicitly

removed from SYS1.LPALIB and placed

elsewhere for use in FLPA

RACROUTE

REQUEST=FASTAUTH

and

Measure

using

AMBLIST

ICHRTX00

exits

RACF

range

table

4 + (number_of_ranges× 45)

EPLPA

RACF

installation

exits

that

are

AMODE(31)

Measure

using

AMBLIST

RACF

above-the-line resident modules

875

000

SQA

RACF

communications

vector

table

and

extension2800

Class descriptor table (CNST) and

RACF

router7500 +

58 ×

table

number_of_customer_defined_classes

ESQA

RACF

data

sharing

control

area

300 (when enabled for sysplex communication)

Class descriptor

table

(CNSX)

(number_of_IBM-defined_classes× 28) +

(number_of_IBM-defined_entries_in_router× _table

30)

+

(number_of_customer_defined×_classes

58)

+

26

For

Security

Server

(RACF)

Release

2,

there

are

43 IBM-defined classes and 165 IBM-defined

entries

in

the

router

table,

so

the

size

of

the

is

6180

+ (number_of_customer_defined_classes

× 58). If you

install

a

PTF that adds

entries,

you

will

need

to

recalculate

this

number.

LSQA

ACEE

and

related

storage

400 + installation_data_length +

Notes:

terminal_installation_data_length

+

application_installation_data +

(52

for

every

78

1. Applications

can

place

this

storage

in

different

subpool.

temporary datasets, rounded up to the next

multiple

of

52)

2. Applications

can

create

multiple

ACEEs

in

this

and

other

storage

subpools.

If the address space has been dubbed an

OpenEdition process, then add: 52 +

(number_of_connected_groups_with× GIDs4)

Add 112 bytes if the user

has

CLAUTH for

a

clas

with

a

POSIT

value

over

127.

Formula for average_profile_size:

average_profile_size = 51 + average_installation_data + (average_number× 9)_of+_access_entries (average_number_of_categories× 2) + (average_number_of_conditional_access× 17)_entries

32 OS/390 V1R2.0 Security Server (RACF) Planning: Installation and Migration