Chapter 7. Software support 277
A primary objective of IWQ is to provide improved performance for business-critical
interactive workloads by reducing contention that is created by other types of workloads. The
following types of z/OS workloads are identified and assigned to unique input queues:
z/OS Sysplex Distributor traffic: Network traffic that is associated with a distributed virtual
Internet Protocol address (VIPA) is assigned to a unique input queue. This configuration
allows the Sysplex Distributor traffic to be immediately distributed to the target host.
z/OS bulk data traffic: Network traffic that is dynamically associated with a streaming (bulk
data) TCP connection is assigned to a unique input queue. This configuration allows the
bulk data processing to be assigned the appropriate resources and isolated from critical
interactive workloads.
IWQ is exclusive to OSA-Express5S and OSA-Express4S CHPID types OSD and OSX, and
the z/OS operating system. This limitation applies to z13, z13s, zEC12, zBC12, z196, z114,
and System z10 servers. The minimum support requirements are listed in Table 7-47.
Table 7-47 Minimum support requirements for IWQ
7.3.56 Inbound workload queuing for Enterprise Extender
IWQ for the OSA-Express features is enhanced to differentiate and separate inbound
Enterprise Extender traffic to a dedicated input queue.
IWQ for Enterprise Extender is exclusive to OSA-Express5S and OSA-Express4S, CHPID
types OSD and OSX, and the z/OS operating system. This limitation applies to z13, z13s,
zEC12, zBC12, z196, and z114 servers. The minimum support requirements are listed in
Table 7-48.
Table 7-48 Minimum support requirements for IWQ
7.3.57 Querying and displaying an OSA configuration
OSA-Express3 introduced the capability for the operating system to query and directly display
the current OSA configuration information (similar to OSA/SF). z/OS uses this OSA capability
by introducing a TCP/IP operator command called display OSAINFO.
Using display OSAINFO allows the operator to monitor and verify the current OSA
configuration. Doing so helps improve the overall management, serviceability, and usability of
OSA-Express5S and OSA-Express4S.
The display OSAINFO command is exclusive to z/OS, and applies to CHPID types OSD, OSM,
and OSX.
Operating system Support requirements
z/OS z/OS V1R12
z/VM z/VM V6R2 for guest use only, service required
Operating system Support requirements
z/OS z/OS V1R13
z/VM z/VM V6R2 for guest use only, service required
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