Table 27 (Page 2 of 2). Network Management Commands

Function

POWER

JES2

 

 

 

Display Network

I ALL

$DCONNECT, $DPATH

Connections

 

 

 

 

 

Display Nodal Attributes

I NODE = node

$DNODE

 

 

 

Alter Nodal Attributes

PLOAD PNET,ndt

$TNODE

 

 

 

Alter Route Tables

PLOAD PNET,ndt

$TNODE,SUBNET=,

 

 

$TCONNECT

 

 

 

Define Nodes

DEFINE node

$ADD NODE

 

 

 

Trace Line Problems

S PNET,node,,,, TRACE

$TR,ON,ID= + 4 + 5

 

 

 

N/A = No available operator command

File Control

The following table shows the various operator commands that control jobs (SYSIN or SYSOUT, ²files² to RSCS) on the various systems. Note that there are also global ($G..) commands for JES2 which can be used to control jobs on other nodes.

Table 28. File Control Commands

Function

POWER

JES2

 

 

 

Display Network Queues

PDISPLAY XMT

$ DQ,Q=XMT [node ]

 

 

$ D Q , R =

 

 

 

Reorder network Queues

A XMT,job,PRI=

$ TJnnn,P= $ TOJnnn,P=

 

 

 

Display Job Routing

D RDR,job D LST,job

$DJnnn $TOJnnn

 

 

 

Re-Route Jobs

A XMT,job,NODE=

$ RXEQ,D=

 

 

 

Re-Route Output

A XMT,job,NODE =

$ RALL,D=node

 

 

$ TOJnn,D=

 

 

 

Hold Jobs and Output

H XMT [,job ]

$HJnnn

 

 

 

Release Jobs and Output

CH splid NOHOLD

$AJnnn

 

 

 

Cancel Jobs and Output

C XMIT [,job ]

$CJnnn, $PJnnn

 

 

 

Sending Commands and Messages

The following commands are available to system operators to send commands and messages to other nodes.

Table 29. Sending Commands and Messages

Function

POWER

JES2

 

 

 

Send Message to Another

B node,msg

$DMNn,msg

Node

 

 

 

 

 

Send Message to

B node,user,msg

N/A

Interactive User

 

 

 

 

 

Send Command to

X node,cmd

$Nnnn;cmd

Another System

 

 

 

 

 

234VSE to OS/390 Migration Workbook

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IBM OS/390 manual Sending Commands and Messages, 2 of 2. Network Management Commands, File Control Commands

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.