zIIP

The zIIP parameter specifies whether High-speed Apply Engine attempts to use IBM System z Integrated Information Processors (zIIPs).

Attributes

This parameter has the following attributes:

Attribute

Value

Section

[StartUp]

Abbreviation

None

Required?

No

Valid values

ENABLED or DISABLED

Default value

ENABLED

Related topic

StartUp-parameters

Usage

High-speed Apply Engine can use enclave service request blocks (SRBs) to enable zIIP processing automatically while running jobs. Using zIIP processing can reduce the overall CPU time for High-speed Apply Engine jobs. To enable and use zIIP processing with High-speed Apply Engine, you must meet the following requirements:

  • Have an installed and authorized version of the EXTENDED BUFFER MANAGER (XBM) product or the SNAPSHOT UPGRADE FEATURE (SUF) technology.
  • Start and maintain an XBM subsystem in your environment.
  • Have a zIIP available in your environment.

For more information about the XBM component that enables the use of zIIPs, see the SNAPSHOT UPGRADE FEATURE for DB2 documentation.

  • ENABLED—If a zIIP is available, High-speed Apply Engine attempts to offload eligible processing to the zIIP. If the zIIP is busy or not available, normal processing continues on a general-purpose processor. ENABLED is the default value.
  • DISABLED—High-speed Apply Engine will not attempt to use zIIP processing.

 

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