Sysplex


Also found in: Acronyms.

Sysplex

(operating system)
An IBM term for communicating MVS systems. See also "Parallel Sysplex".

Sysplex

(SYStem comPLEX) The multiprocessing capability in IBM mainframes. Introduced with MVS/ESA 4.3 in 1991, Sysplex links multiple system images within multiple machines and treats them all as a single image. Sysplex added the external Sysplex Timer to synchronize internal clocks, because if a failure occurs in a multiprocessor complex, precise transaction time stamps are required for accurate rollback and recovery. It also added XCF (Cross-system Communications Facility), which is software that manages the interconnections between machines.

The addition of one or more Coupling Facilities creates a Parallel Sysplex system that provides high-level clustering that includes data sharing with guaranteed integrity and extensive resource sharing between the systems. See Coupling Facility and Parallel Sysplex.
References in periodicals archive ?
The zSeries 800 cannot be acquired as a standalone machine in this deal, only as part of a Parallel Sysplex cluster.
The full suite of Candle Command Center solutions for the OS/390 platform including Candle Command Center for Sysplex, CICS, DB2plex, IMSplex, and OS/390 UNIX System Services.
When FILIADATA discussed the need to connect IBM mainframes in a Parallel Sysplex over more than 10 kilometers, there was only one clear option.
GDPS uses PPRC synchronous remote copy to minimize or eliminate data loss and uses Parallel Sysplex cluster functions along with system automation to minimize the duration of the recovery window.
S/390 systems are already very good at sharing data among themselves through the IBM's Parallel Sysplex Coupling Facility.
The first was parallel sysplex capacity pricing, which offered discounts to customers with clustered or single S/390 or compatible mainframes with 1,000 or more total MIPS.
13 / JES3 - Systems in Parallel Sysplex configurationsIn essence, the following services are provided - Planning, development and implementation of measures to regulate the use of FTP and design a security solution- Develop a new job class concept for the z / OS batch mode,- Use and safety concept for systemically important files cataloged procedures,- Software adaptation to the environment of the Bundesbank - Z / OS,- UNIX System Services,- File Transfer products XFB, FTP, SQS DTE- Communication software and hardware TCP / IP, VTAM, PCOMM, OSA,- User support and problem analysis for all of these software products.
The following are either trademarks or registered trademarks of International Business Machines Corporation in the United States or other countries or both: IBM, the IBM e-business logo, zSeries, z900, z/OS, S/390, S/390 G5 Parallel Enterprise Server, OS/390, Parallel Sysplex, AIX, CICS, DB2, DBCTL, DB2plex, IMS and IMSplex.
Activity is traced and integrated from all mainframe nodes within a Sysplex and exposed graphically via the Shadow Studio.
To the risk of failure to keep the conversion costs and training costs minimal, the new server system 100% must be compatible with the existing infrastructure (especially in the Parallel Sysplex with IBM z196, EMC DCX4-S SAN Directors, Cisco Catalysts 6500, RAS system from , etc.
Kiser states that these choices, along with Parallel Sysplex and data-sharing support, provide Candle and IBM customers greater scalability and the means to manage and integrate multiple, diverse workloads in a highly secure environment.
The servers are clustered using IBM Parallel Sysplex technology enabling Garanti Bank to safeguard and recover critical information and reduce possible downtime in the case of a systems failure.