IBM System z10 EC Reference Manual

Also see for System z10 EC: Reference guide

Contents

12The z10 EC has been designed to offer high performanceand efficient I/O structure. All z10 EC models ship withtwo frames: an A-Frame and a Z-Frame, which togethersupport the installation of up to three I/O cages. The z10EC will continue to use the Cargo cage for its I/O, support-ing up to 960 ESCON® and 256 FICON® channels on theModel E12 (64 I/O features) and up to 1,024 ESCON and336 FICON channels (84 I/O features) on the Models E26,E40, E56 and E64.To increase the I/O device addressing capability, the I/Osubsystem provides support for multiple subchannelssets (MSS), which are designed to allow improved deviceconnectivity for Parallel Access Volumes (PAVs). To sup-port the highly scalable multi-book system design, the z10EC I/O subsystem uses the Logical Channel Subsystem(LCSS) which provides the capability to install up to 1024CHPIDs across three I/O cages (256 per operating systemimage). The Parallel Sysplex Coupling Link architectureand technology continues to support high speed links pro-viding efficient transmission between the Coupling Facilityand z/OS systems. HiperSockets provides high-speedcapability to communicate among virtual servers and logi-cal partitions. HiperSockets is now improved with the IPversion 6 (IPv6) support; this is based on high-speed TCP/IP memory speed transfers and provides value in allowingapplications running in one partition to communicate withapplications running in another without dependency onan external network. Industry standard and openness aredesign objectives for I/O in System z10 EC.The z10 EC has five models offering between 1 to 64 pro-cessor units (PUs), which can be configured to providea highly scalable solution designed to meet the needsof both high transaction processing applications and OnDemand Business. Four models (E12, E26, E40 and E56)have 17 PUs per book, and the high capacity z10 ECModel E64 has one 17 PU book and three 20 PU books.The PUs can be characterized as either CPs, IFLs, ICFs,zAAPs or zIIPs. An easy-to-enable ability to “turn off” CPsor IFLs is available on z10 EC, allowing you to purchasecapacity for future use with minimal or no impact onsoftware billing. An MES feature will enable the “turnedoff” CPs or IFLs for use where you require the increasedcapacity. There are a wide range of upgrade options avail-able in getting to and within the z10 EC.z10 EC ModelsE64E56E40E26E12Concurrent Upgradez990z10 ECz9 EC