zIIP
For IBM z/OS, 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 |
DBMS | Db2 |
Required? | No |
Valid values | ENABLED or DISABLED |
Default value | ENABLED |
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 EXTENDED BUFFER MANAGER 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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