Draft Document for Review April 7, 2004 6:15 pm

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￿The Send and Receive push buttons have been removed.

￿There is now a check box for indicating that the command typed is a reply to a “Priority Message”.

SNA Operations Management for Operations Automation

With the industry move to TCP/IP networks, Systems Network Architecture (SNA) Operations Management commands will no longer be supported on z990 servers. These commands were previously used by the System Automation for OS/390 product, as well as NetView®. The recommendation is to now use the Simple Network Management Protocol (SNMP) Application Programming Interfaces (APIs) for automation needs.

￿If the System Automation for OS/390 product is used, it must now be at Version 2.2 or later. This will allow you to define an automation policy for SNMP APIs, rather than a policy for SNA Operations Management commands.

￿If the SNA Operations Management commands on NetView are used directly, now an SNMP agent and the SNMP APIs for systems automation management should be used.

For detailed information on the SNMP APIs commands and environment requirements, see zSeries Application Programming Interfaces, SB10-7030. For more information on the SNA Operations Management command support that is not offered on z990, see Managing Your Processors, GC38-0452. Both publications are available on IBM Resource Link.

Appendix A. Hardware Management Console (HMC) 245

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IBM 990 manual SNA Operations Management for Operations Automation
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990 specifications

The IBM 990 series, often referred to in the context of IBM's pioneering efforts in the realm of mainframe computing, represents a unique chapter in the history of information technology. Introduced in the late 1960s, the IBM 990 series was designed as a powerful tool for enterprise-level data processing and scientific calculations, showcasing the company's commitment to advancing computing capabilities.

One of the main features of the IBM 990 was its architecture, which was built to support a wide range of applications, from business processing to complex scientific computations. The system employed a 32-bit word length, which was advanced for its time, allowing for more flexible and efficient data handling. CPUs in the IBM 990 series supported multiple instructions per cycle, which contributed significantly to the overall efficiency and processing power of the machines.

The technology behind the IBM 990 was also notable for its use of solid-state technology. This provided a shift away from vacuum tube systems that were prevalent in earlier computing systems, enhancing the reliability and longevity of the hardware. The IBM 990 series utilized core memory, which was faster and more reliable than the magnetic drum memory systems that had been standard up to that point.

Another defining characteristic of the IBM 990 was its extensibility. Organizations could configure the machine to suit their specific needs by adding memory, storage, and peripheral devices as required. This modular approach facilitated the growth of systems alongside the technological and operational demands of the business environments they served.

In terms of software, the IBM 990 series was compatible with a variety of operating systems and programming environments, including FORTRAN and COBOL, enabling users to access a broader array of applications. This versatility was a significant advantage, making the IBM 990 an appealing choice for educational institutions, research facilities, and enterprises alike.

Moreover, the IBM 990 was engineered to support multiprocessing, which allowed multiple processes to run simultaneously, further increasing its effectiveness in tackling complex computing tasks.

In summary, the IBM 990 series represents a significant advancement in computing technology during the late 20th century. With a robust architecture, versatile configuration options, and a focus on solid-state technology, the IBM 990 facilitated substantial improvements in data processing capabilities, making it a cornerstone for many businesses and academic institutions of its time. Its impact can still be seen today in the continued evolution of mainframe computing.
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