Fact Sheet: IBM Continues to Extend Performance of Parallel Sysplex Clustering Technology
IBM S/390 Parallel Sysplex is the industry leader in clustering technology, featuring the outst & ing capacity, flexibility & availability required to h & le the growing – 07 May 1998: Parallel Sysplex Clustering Technology
N/A (May 07, 1998) – Up to 32 individual S/390 servers, each with up to 10 processors, can be linked to form a Parallel Sysplex cluster. Parallel Sysplex clustering technology, introduced by IBM in 1994, delivers leading-edge application availability and industry-leading scalability and performance.
A Parallel Sysplex cluster can provide enough computing power to support many workloads and hundreds of thousands of users at one time. Parallel Sysplex technology also offers near-limitless server capacity to handle the increasingly unpredictable flow of today’s business transactions.
The IBM S/390 Parallel Sysplex architecture features a unique “shared data” data-sharing environment. Unlike some clustering technologies that partition their databases, all data is available to all servers in a Parallel Sysplex cluster. In the unlikely event of a server failure, this “shared data” design allows the workload to be distributed across the entire Parallel Sysplex and resumed without interrupting applications or operations.
S/390’s unique Workload Manager (WLM) function can optimize a single system or Parallel Sysplex configuration by dynamically adjusting workload priorities based on customer-defined priorities and available resources. The ability to manage workloads based on system and resource availability is called “dynamic workload balancing.”
Implementation rates of Parallel Sysplex technology configurations continue in line with IBM’s projected targets. Customers have indicated that Parallel Sysplex clustering technology is the long-term solution for their large-system computing needs. By the end of March 1998, there were 757 customers with Parallel Sysplex systems in production; this is an increase of 65 percent over March 1997. Of these, more than 330 were doing full data-sharing, for an 183 percent increase over March 1997.
Source: IBM