L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIST

 

request .

 

The

issuing

of

the

RACROUTE

macroNetView

 

segment

 

 

.

The

portion of a RACF profile

 

 

with

REQUEST=LIST

specified.

A

LIST

request

buildscontaining

 

NetView

logon information.

 

 

 

 

 

 

 

 

 

in-storage profiles for RACF-defined

resources.

 

The

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIST

request

replaces

the

RACLIST

function.

 

node .

 

See

RRSF

node.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

local

 

logical

unit

(LU) .

 

Local

 

LUs

are

 

LUs

defined

to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the MVS system; partner LUs are defined toO

remote

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

systems.

It

is

a

 

matter

of

point

of

view.

OVM

From

 

the

point

 

portion

of

a

RACF

profile

 

 

 

 

of

 

view

of

a

remote

system,

LUs

defined

 

 

segment

 

 

 

.

 

 

The

 

 

 

 

 

to

 

that

 

 

system

 

 

information.

 

 

 

 

 

 

 

 

 

 

 

 

are

local

LUs,

and

 

those

on

MVS are

the

 

 

containing

 

OVM

 

logon

 

 

 

 

 

 

 

 

 

 

 

 

 

partner

 

LUs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

partner

LU

might

 

or

 

might

not

be

 

on

the

 

same

 

system

user

or

group

who

creates

a

profile or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

owner .

 

 

The

as

 

the

local

LU.

When

both

LUs

are

on

the

 

same

 

 

 

 

owner

of

a

profile.

The

owner

can

modify,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

named

 

the

system,

the

LU

 

through

which

communication

is

 

initiated

 

 

 

 

the

profile.

 

 

 

 

 

 

 

 

 

 

 

is the local LU, and the LU through which

 

list,

 

or

 

 

delete

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communication

is

received

 

is

the

partner

LU.P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

local

 

node .

 

The

RRSF

 

node

 

from

whose

point

of

 

view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

you

are

talking.

For

example,

if

MVSA

and

 

 

partner

 

logical unit (partner LU)

.

Partner

LUs

are

 

 

 

 

MVSB

 

are

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

two

RRSF

nodes

that

are

 

logically

connected,

 

LUs

 

defined

 

to remote

systems;

 

LUs

defined

to

the

 

 

from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MVSA's

point

of

 

view

 

MVSA

is

the

local

node,

 

MVS

 

system

are

 

local

LUs.

It

is

a matter

of

a

poi

 

 

and

from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MVSB's

point

 

of

view

 

MVSB

 

is

the

local

node.

 

view.

 

From

the

 

point

of

 

view

of

 

the

remote

system,

 

 

 

 

See

 

also

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

remote node.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

defined

 

 

to

that

system

are

local

LUs,

and

the

ones

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MVS are the partner LUs.

 

 

 

 

 

 

 

 

 

 

 

 

 

logical

unit .

 

A

port

 

providing formatting, stateA partner LU

 

might or

might

not

be

on

the

 

same

sys

synchronization,

and

 

other

 

high-level

services

 

through

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

which

an

end

user

 

communicates

with

 

another

 

as

 

the local LU. When both LUs are on the same

 

 

 

end

 

user

 

 

LU

through

which

communication

is

initiate

over

an

SNA

 

network.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

system,

 

 

the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is the local LU, and the LU through which

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LU .

 

Seelogical

unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communication

is

 

received

is

the

 

partner

LU.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PassTicket

 

 

.

An

 

alternative

to

the

 

RACF

password

that

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

permits

 

workstations

and

client

 

machines

 

to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communicate

with

the

host. It allows a user to gain

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

main

 

system .

 

The

system

 

on

a

multisystem

RRSF access

 

 

to

the

host

system without sending the RACF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

password

 

 

across

the

network.

 

 

 

 

 

 

 

 

 

 

 

 

node that is designated to receive most of the RRSF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communications

sent

to

the

 

node.

 

 

 

 

 

 

 

password .

 

In

 

computer

security, a string of charac

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

member

system

 

.

 

Any

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

known

 

to

 

the

computer

system

and

 

a

user

who

must

 

 

 

 

one of the MVS system images

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in

a

multisystem

 

RRSF

node.

 

 

 

 

 

 

 

 

 

specify

 

 

it

to

 

gain

full

or

limited

access

 

to

a

sys

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to

 

the

data stored within it. In RACF, the password

multisystem

node

 

.

 

Seemultisystem

RRSF

node

 

 

 

used

 

to

 

 

verify

the

identity

of

the

 

user.

 

 

 

multisystem

RRSF

node

 

.

 

An

 

RRSF node

consisting

 

password

 

synchronization

 

 

.

An

option

 

which

 

can

be

 

 

of

 

multiple

 

MVS

system

images

that

share

the

specified

when

a

peer

user

 

ID

association

is

def

 

 

 

same

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RACF

database.

One

of

the

systems

 

is

 

 

 

between

 

 

two

 

user

IDs.

 

If

password

synchronization

 

designated

 

to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

specified

for

 

a

user

ID

association,

then

whenever

be the main system, and it receives most of the RRSF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communications

sent

to

the

 

node.

 

 

 

 

 

 

 

password

 

 

for

 

one

of

the associated user IDs is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

changed,

 

 

the

 

password

for

the

other

 

user

 

ID is

MVS

 

.

Multiple

virtual

storage.

Implies

MVS/370,automatically

changed

to

 

the

newly

defined

password.

MVS/XA,

and

MVS/ESA.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See alsoautomatic password direction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

permission

bits .

 

 

In OpenEdition MVS, part of security

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

controls for directories and files stored in the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

hierarchical file system (HFS). Used to grant read,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

search

 

(just

 

directory),

or

execute

 

(just

file)

ac

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

owner,

 

owner's

group,

or

all

others.

 

 

 

 

 

 

 

 

42 OS/390 V2R4.0 Security Server (RACF) Planning: Installation and Migration

Page 62
Image 62
IBM OS/390 manual Request, Node, Unit, Owner, System, Password, Bits

OS/390 specifications

IBM OS/390, a versatile operating system, was a cornerstone in enterprise environments and played a pivotal role in mainframe computing. Released in the mid-1990s, OS/390 combined the strengths of IBM's MVS (Multiple Virtual Storage) with new features and enhancements, targeting scalability, reliability, and performance in demanding business applications.

One of the key features of OS/390 was its robust support for multiple users and processes. The system allowed thousands of concurrent users to access applications and data, ensuring high availability and minimizing downtime—a critical requirement for many large organizations. This scalability was supported through various enhancements in memory management and processor scheduling, enabling optimal resource allocation across diverse workloads.

OS/390 was known for its superior workload management capabilities. The Workload Manager (WLM) component allowed administrators to define service policies, specifying how system resources would be allocated according to the priority of tasks. This ensured that critical business processes received the necessary resources while less critical tasks were managed more flexibly.

Another significant characteristic of OS/390 was its commitment to security. The operating system provided comprehensive security features, including user authentication, data encryption, and auditing capabilities. This focus on security was vital for organizations handling sensitive data, ensuring compliance with regulations and safeguarding against unauthorized access.

OS/390 also supported advanced technologies that facilitated integration and development. The system included features like the IBM CICS (Customer Information Control System) for transaction processing and IMS (Information Management System) for database management. These technologies allowed organizations to build robust, high-performance applications tailored to specific business needs.

The ease of network integration was another strength of OS/390. With the advent of the Internet and global connectivity, OS/390 systems could easily interface with various network protocols, enabling businesses to operate in a connected world. This inclusion paved the way for many organizations to expand their capabilities and offer new services, driving digital transformation.

In conclusion, IBM OS/390 represented a significant advancement in mainframe technology, combining scalability, security, and robust workload management. Its rich feature set and support for critical enterprise applications solidified its role as a vital component of many organizations' IT infrastructures, ensuring they could meet their operational challenges head-on while supporting future growth. As technology continues to evolve, the legacy of OS/390 remains influential in the realm of computing.