zIIP

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IBM System z Integrated Information Processor ( zIIP ) is a specialized processor for the IBM - mainframe computer models of the system for family.

zIIPs are able to outsource certain work from the regular processors so that the other processors are relieved. The proportion of the work to be outsourced depends on the system component or middleware that makes use of this technology. First, zIIPs were exploited by DB2. A growing number of applications can now run on zIIPs.

The zIIP is not specially optimized. Rather, it is a "normal" z / Series CPU which, due to microcode changes, is no longer able to carry out other than the relevant work. zIIPs are not included in the calculation of machine performance (the so-called MSU rate), which can reduce software costs.

Likewise, zIIPs always run at maximum speed, while the other CPUs may be "throttled" depending on the computer performance ordered.

Uses for DB2

As of DB2 z / OS Version 8, the zIIP can be used to perform certain processing on this processor.

  • DRDA requirements
  • Star schema table access
  • Processing of utilities such as B. LOAD, REORG and REBUILD
  • Coordination of the parallel execution of individual SQL statements
  • XML processing
  • Network encryption ( IPSec )

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