Changes to the Documentation Set

Documentation

The Cisco IOS for S/390 Planning and Operations Guide and Cisco IOS for S/390 Installation Guide of previous releases have been reorganized as described below:

•Cisco IOS for S/390 Planning Guide

This guide provides information to help you plan your installation of Cisco IOS for S/390. It will ship prior to shipment of the product.

•Cisco IOS for S/390 System Management Guide

This guide provides information about Cisco IOS for S/390 operation and system commands. It will ship with the product.

•Cisco IOS for S/390 release 2.0 Release Notes (this document)

The release notes now contain installation information. They will ship with the product.

Cisco IOS for S/390 User's Guide

A correction is required for Chapter 9, “Remote Executor,” of the Cisco IOS for S/390 User's Guide. On page 9-2, in the section “What is the Remote Executor?” the following statement is incorrect:

This product uses version 5.5 of SAS C.

You must use SAS/C Release 6.00.

Cisco IOS for S/390 Planning Guide

The information in this section should be added to the Cisco IOS for S/390 Planning Guide.

SERVICE Startup Statement

Keywords IBUF(aaa bbb) and OBUF(aaa bbb) have been added to the SERVICE startup statement to allow default override:

IBUF(aaa bbb)	If the service name is TELNET, you can use IBUF to specify the number of
	input buffers as aaa, and their size as bbb. The lower limits are (2 256);
	defaults are (1 1460).
OBUF(aaa bbb)	If the service name is TELNET, you can use OBUF to specify the number of
	output buffers as aaa, and their size as bbb. The lower limits are (2 256); the
	defaults are (4 1460).

The minimum value for IBUF and OBUF is 512; it is the product of multiplying the buffer size times the number of buffers. The buffer size cannot be less than 256, and the number of buffers cannot be 0, so the lower limit would be (2 256) or (1 512).

Enhancements to the Global Exit Facility

The following enhancements have been made to the Global Exit Facility.

10Cisco IOS for S/390 Release 2.0 Release Notes

S/390 specifications

Cisco Systems S/390, also known as IBM's S/390 architecture, is a revolutionary mainframe computing solution that has significantly impacted enterprise computing since its introduction. Though primarily associated with IBM, its integration with Cisco Systems technologies has fostered enhanced networking capabilities, creating a robust platform for organizations to leverage.

One of the most notable features of the S/390 architecture is its scalability. The system is designed to manage workloads efficiently, enabling organizations to scale their operations seamlessly as their requirements grow. This architecture supports an extensive range of applications, from transaction processing to complex data analysis, making it suitable for diverse industries.

The S/390 systems are known for their reliability and resilience. With advanced error detection and correction mechanisms, the architecture minimizes downtime, ensuring that mission-critical applications remain operational. The mainframe's design accommodates redundancy and fault tolerance, reinforcing its reputation as a dependable computing solution.

Moreover, security is a core characteristic of the S/390 infrastructure. It incorporates various security features, such as encryption and robust access control mechanisms, to safeguard sensitive data against unauthorized access and cyber threats. This level of security is particularly critical for industries such as finance, healthcare, and government, where data protection is paramount.

The integration of Cisco networking technologies with the S/390 architecture brings enhanced connectivity and streamlined communication capabilities. Cisco’s advanced routing, switching, and security solutions bolster the mainframe's communication prowess, enabling organizations to create seamless, high-performance networks. This ensures that data flows efficiently between the mainframe and other networked devices.

Additionally, S/390 supports an array of middleware solutions, facilitating better interoperability with modern applications and cloud services. Organizations can take advantage of this flexibility to leverage existing investments in technology while embracing innovative solutions.

In summary, Cisco Systems S/390 embodies a potent combination of scalability, reliability, security, and advanced networking features. Its architecture serves as a cornerstone for enterprise computing, allowing organizations to meet their evolving business needs while maintaining high-performance standards. As businesses increasingly rely on data-driven decision-making, S/390 remains a critical asset for organizations striving for efficiency and innovation in their operations.

Cisco Systems manual Changes to the Documentation Set, Cisco IOS for S/390 Users Guide

Models: S/390