What is the maximum number of z OS images in a Parallel Sysplex environment?
What is a Parallel Sysplex? With IBM’s Parallel Sysplex technology, you can harness the power of up to 32 z/OS systems, yet make these systems behave like a single, logical computing facility.
How many systems can a coupling facility cluster?
32 systems
Parallel Sysplex allows a cluster of up to 32 systems to share workloads for high performance, high availability, and disaster recovery (DR).
What is the primary role of Geographically Dispersed Parallel Sysplex GDPS?
Geographically Dispersed Parallel Sysplex™ (GDPS®) is the primary disaster recovery and continuous availability solution for a mainframe-based multi-site enterprise. GDPS automatically mirrors critical data and efficiently balances workload between the sites.
What are the differences between Gdps and Gdps Xrc?
GDPS Metro Global – GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. GDPS Metro Global – XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery.
What is Sysplex in mainframe?
Mainframe concepts A sysplex is a collection of z/OS® systems that cooperate, using certain hardware and software products, to process work. It is a clustering technology that can provide near-continuous availability.
What is the function of a Parallel Sysplex?
Parallel Sysplex is a clustering technology which allows you to operate multiple copies of a z/OS as a single system image. Images can be added or removed to the cluster as needed, while applications continue to run.
What is a coupling facility related to Parallel Sysplex?
Cross system coupling facility (XCF) services allow authorized programs on one system to communicate with programs on the same system or on other systems. If a system fails, XCF services also provide the capability for batch jobs and started tasks to be restarted on another eligible system in the sysplex.
What is a Sysplex environment?
A sysplex is IBM’s systems complex (the word sysplex comes from the first part of the word system and the last part of the word complex), introduced in 1990 as a platform for the MVS/ESA operating system for IBM mainframe servers. The sysplex consists of the multiple computers (the systems) that make up the complex.
What are primary roles of Sysplex and Parallel Sysplex?
A sysplex can be either basic or parallel. A basic sysplex can communicate using channel to channel (CTC) connections between LPARs. Parallel Sysplex uses something called a Coupling Facility (CF). It is capable of managing data structures on behalf of applications requiring inter-LPAR communication.
What is Sysplex Timer?
The IBM Sysplex (TM) Timer is a table-top unit that. synchronizes the time-of-day (TOD) clocks in up to 16 supported. processors or processor sides. Attachment permits events initiated. by different processors to be time-stamped in sequence.
What are the two types of Sysplex?
There are two types of sysplex: base and parallel.
- A base sysplex is a sysplex implementation without a coupling facility.
- A parallel sysplex is a sysplex implementation with a coupling facility.
What is base Sysplex?
A base sysplex is a sysplex implementation without a coupling facility. A parallel sysplex is a sysplex implementation with a coupling facility.
What kind of coupling facility does Parallel Sysplex use?
Parallel Sysplex uses something called a Coupling Facility (CF). Note: The Parallel Sysplex Coupling Facility can run either as a separate LPAR or within a dedicated hardware device. It is capable of managing data structures on behalf of applications requiring inter-LPAR communication.
What’s the maximum distance between a fire sprinkler system?
Excluding heads in combustible concealed spaces, all sprinklers in this category have 15 feet (4.6 meters) of maximum allowable spacing between them. Ordinary Hazard (15 ft). All sprinklers in these environments have a 15-foot (4.6-meter) maximum. Extra Hazard (12-15 ft).
What do you mean by Sysplex in z / OS?
A sysplex refers to a tightly-coupled cluster of independent instances of the z/OS operating system. It is beyond of the scope of this information to go into details on how the sysplex functions. Instead, this section will help you understand the aspects of a sysplex as it applies to TCP/IP. A sysplex can be either basic or parallel.
Who are the authors of Parallel Sysplex Volume 1?
Pierre Cassier, Keith George Frank Kyne, Bruno Lahousse Sylvie Lemariey, Christian Matthys Masaya Nakagawa, Jean-Jacques Noguera Dominique Richard, Philippe Richard Pascal Tillard, Steve Wall An update of the Parallel Sysplex Configuration Volume 1 High-level design concepts for Parallel Sysplex The workloads in Parallel Sysplex