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

6947ch01.fm

These cryptographic functions are implemented in every PU; the affinity problem of pre-z990 systems is eliminated. The Crypto Assist Architecture includes DES and T-DES data en/decryption, MAC message authentication, and SHA-1 secure hashing. These functions are directly available to application programs (zSeries Architecture instructions). SHA-1 is always enabled, but other cryptographic functions are available only when the Crypto enablement feature (FC 3863) is installed.

PCI Cryptographic Accelerator feature (PCICA)

The Peripheral Component Interconnect Cryptographic Accelerator (PCICA) feature has two accelerator cards per feature and is an optional addition, along with the Peripheral Component Interconnect X Cryptographic Coprocessor (PCIXCC) FC0868. The PCICA is a very fast cryptographic processor designed to provide leading-edge performance of the complex RSA cryptographic operations used with the Secure Sockets layer (SSL) protocol supporting e-business. The PCICA feature is designed specifically for maximum speed SSL acceleration.

Each zSeries PCI Cryptographic Accelerator feature (PCICA) contains two accelerator cards and can support up to 2100 SSL handshakes per second.

Note: To enable the function of the PCICA feature, the CP Assist feature (feature code 3863) must be installed.

PCI X-Cryptographic Coprocessor (PCIXCC) feature

The Peripheral Component Interconnect X Cryptographic Coprocessor (PCIXCC) feature has one coprocessor and is an optional addition, containing support to satisfy high-end server security requirements by providing full checking and fully programmable functions and User Defined Extension (UDX) support.

The PCIXCC adapter is intended for applications demanding high security. The PCIXCC feature is designed for the FIPS 140-2 Level 4 compliance rating for secure cryptographic hardware.

Note: To enable the function of the PCIXCC feature, the CP Assist feature (feature code 3863) must be installed.

1.3.9 Parallel Sysplex support

ISC-3

A 4-port ISC-3 card structure is provided on the z900 family of processors. It consists of a mother card with two daughter cards that have two ports each. Each daughter card is capable of operating at 1 gigabit/sec in compatibility mode (HiPerLink) or 2 gigabits/sec in peer mode up to 10 km. The mode is selected for each port via CHPID type in the IOCDS.

InterSystem Coupling Facility-3 (ISC-3) channels provide the connectivity required for data sharing between the Coupling Facility and the CPCs directly attached to it. ISC-3 channels are point-to-point connections that require a unique channel definition at each end of the channel. ISC-3 channels operating in peer mode provide connection between z990, z890, and z900 general purpose models and z900-based Coupling Facility images. ISC-3 channels operating in compatibility mode provide connection between z990 models and ISC HiperLink channels on 9672 G5/G6 models.

Chapter 1. IBM zSeries 990 overview 13

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IBM 990 manual Parallel Sysplex support, PCI Cryptographic Accelerator feature Pcica

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.