IBM System z Application Assist Processor (zAAP)
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The IBM System z Integrated Information Processor (zIIP) is available on all System z10 and System z9 server. It is designed to help free-up general computing capacity and lower overall total cost of computing for select data and transaction processing workloads for business intelligence (BI), ERP and CRM, and select network encryption workloads on the mainframe.
Eligible workloads include portions of the following:
DB2 for z/OS V8 and DB2 9 for z/OS exploit the zIIP capability for portions of eligible data serving and utility workloads.
Some DB2 for z/OS utilities - A portion of DB2 for z/OS V8 utility functions used to maintain index maintenance structures (LOAD, REORG, and REBUILD INDEX) that typically run during batch, can be redirected to the zIIP. A portion of DB2 for z/OS V8 and DB2 9 DB2 utilities for sorting fixed-length records using IBM's memory object sorting technique can be eligible for the zIIP.
z/OS Communications Server exploits the zIIP for eligible IPSec network encryption workloads.
z/OS XML System Services is enabled to take additional advantage of the zIIP for eligible XML workloads.
z/OS Global Mirror (zGM, formerly XRC Extended Remote Copy) enables DFSMS SDM (System Data Mover) processing associated with zGM/XRC to be eligible for the zIIP
z/OS Global Mirror (zGM, formerly XRC Extended Remote Copy) is enhanced to allow most z/OS DFSMS SDM (System Data Mover) processing associated with zGM/XRC to be eligible to run on the zIIP. zIIP assisted z/OS Global Mirror can help provide better price performance and improved utilization of resources or can create server "white space" to be used for other projects at the mirrored site. This capability is available with: z/OS V1.10 (when available), or z/OS V1.9 with PTF UA39510 or z/OS V1.8 with PTF UA39509; IBM System Storage DS8000, or any storage controller, supporting z/OS Global Mirror; and IBM System z9 or System z10 server with zIIP(s).
z/OS Communications Server exploits the zIIP for select HiperSockets large message traffic
Please Note : zIIPs are very similar in concept to System z Application Assist Processors (zAAPs). Like the zAAPs; but unlike standard CPs, ICFs, and IFLs; the zIIP can do nothing on its own. They cannot execute an Initial Program Load and can only assist the general purpose Central Processor (CP) for the execution of eligible work.
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