z/Architecture

• 64-bit Architecture
• Intelligent Resource Director
• Capacity Upgrade on Demand
• Integrated Facility for Linux
• Capacity BackUp
• QDIO
• HiperSockets
• Customer Initiated Upgrades

Cluster systems

• Parallel Sysplex clustering technology
• InterSystem Coupling Links
• Internal Coupling Channel
• Integrated Cluster Bus-3
• Geographically Dispersed Parallel Sysplex™
• Internal Coupling Facility (ICF)
• Shared ICFs and CPs
• Dynamic ICF Expansion
• Transparent ICF Sparing
• Dynamic CF Dispatching
• z/VM Virtual Parallel Sysplex
• System-Managed CF Structure Duplexing

Availability

• Transparent CP Sparing
• Enhanced Application Preservation
• Dynamic memory sparing
• CICS® subspace group facility
• CICS subsystem storage protect
• Dynamic Channel Path Management
• Remote operations support
• Alternate service element
• Concurrent power and thermal maintenance
• N+1 power supply technology
• N+1 cooling
• Dynamic I/O Reconfiguration
• Concurrent channel, OSA-E, and Link upgrade and maintenance
• Concurrent HMC and Support Element maintenance
• Concurrent Licensed Internal Code (LIC) maintenance for CP, SAP, SE, LPAR, channels, HMC
• Dynamic System Assist Processor Reassignment and Sparing

Management

• Cancel I/O requests
• ESCON Sparing
• z/OS managed infrastructure
• Intelligent Resource Director

PR/SM

• Up to 15 LPARs each with 64-bit central memory addressability management
• Enhanced Dynamic Reconfiguration management

Performance

• IEEE binary floating point support for advanced Domino® and Java™ performance
• Up to 32GB central memory
• Hipersorting
• Hiperbatch™
• Compare-and-move extended
• Hardware-assisted data compression
• Performed Locked Operations for enhanced IP performance
• DB2 sort assist

Storage connectivity

• ESCON half duplex data transfer
• Multiple Image Facility (MIF)
• ESCON CTC native and basic mode
• FICON full duplex data transfer
• FICON CTC
• FICON Bridge
• Full fabric FCP support
• FCP support for Linux SCI devices by Linux

Networking

• OSA-Express (Gigabit Ethernet, fast Ethernet, 155 ATM, Token-Ring)
• HiperSockets

Security

• Open Architecture Distributed Transaction Element
• AES Encrytion support
• Tamper-proof Cryptographic support (FIPS 140-1 Level 4 certified)
• Cyrpto SSL for Linux