IBM Z10 EC manual Transparent Sparing, Plan Ahead Memory

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and provide the clock signal to the system transparently, with no system outage. Previously, in the event of a failure of the active oscillator, a system outage would occur, the subsequent system Power On Reset (POR) would select the backup, and the system would resume operation. Dynamic Oscillator Switchover is exclusive to System z10 EC and System z9.

Transparent Sparing

The z10 EC offers two PUs reserved as spares per server. In the case of processor failure, these spares are used for transparent sparing. On z10 EC sparing happens on a core granularity rather than chip granularity as on z990 and System z9 (for which “chip” equaled “2 cores”).

Concurrent Maintenance

Concurrent Service for I/O features: All the features that plug into the I/O Cage are able to be added and replaced concurrent with system operation. This virtually eliminates any need to schedule outage for service to upgrade the I/O subsystem on this cage.

Upgrade for Coupling Links: z10 EC has concurrent maintenance for the ISC-3 daughter card. Also, Coupling Links can be added concurrently. This eliminates a need for scheduled downtime in the demanding sysplex envi- ronment.

Cryptographic feature: The Crypto Express2 feature plugs in the I/O cage and can be added or replaced con- currently with system operation.

Redundant Cage Controllers: The Power and Service Control Network features redundant Cage Controllers for Logic and Power control. This design enables non-disrup- tive service to the controllers and virtually eliminates cus- tomer scheduled outage.

Auto-Switchover for Support Element (SE): The z10 EC has two Support Elements. In the event of failure on the Primary SE, the switchover to the backup is handled automatically. There is no need for any intervention by the Customer or Service Representative.

Concurrent Memory Upgrade

This function allows adding memory concurrently, up to the maximum amount physically installed. In addition, the Enhanced Book Availability function also enables a memory upgrade to an installed z10 EC book in a multi- book server.

Plan Ahead Memory

Future memory upgrades can now be preplanned to be non-disruptive. The preplanned memory feature will add the necessary physical memory required to support target memory sizes. The granularity of physical memory in the System z10 design is more closely associated with the granularity of logical, entitled memory, leaving little room for growth. If you anticipate an increase in memory require- ments, a “target” logical memory size can now be speci-

fied in the confi guration tool along with a “starting” logical memory size. The confi guration tool will then calculate the physical memory required to satisfy this target memory.

Should additional physical memory be required, it will be fulfi lled with the currently available preplanned memory features.

The preplanned memory feature is offered in 16 gigabyte (GB) increments. The quantity assigned by the confi gu- ration tool is the number of 16 GB blocks necessary to increase the physical memory from that required for the “starting” logical memory to the physical memory required for the “target” logical confi guration. Activation of any pre- planned memory requires the purchase of a preplanned

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Contents IBM System z10 Enterprise Class z10 EC Reference Guide Table of Contents IBM System z10 Enterprise Class z10 EC Overview Just-in-time deployment of IT resources Specialty engines offer an attractive alternativeOrder of introduction Numerical computing on the chipEvolving for your business ArchitectureLiberating your assets with System z Z10 EC ArchitecturePage Commitment to system integrity Page TPF VSELinux on System z Z10 EC Operating System ESA/390Page Page Z10 EC Design and Technology Z10 EC Model Z10 EC model upgrades Z10 EC Base and Sub-capacity OfferingsLarge System Performance Reference Z10 EC PerformanceCPU Measurement Facility Z10 EC I/O Subsystem System I/O Configuration AnalyzerZ10 EC Channels and I/O Connectivity Support of Spanned Channels and Logical Partitions Concurrent UpdateFicon Express4 and Ficon Express2 Performance Modes of OperationFCP Channels Ficon Support for Cascaded DirectorsFCP increased performance for small block sizes Ficon and FCP for connectivity to disk, tape, and printers Scsi IPL now a base functionFCP Full fabric connectivity Platform and name server registration in Ficon channelIt will register NPort ID Virtualization Program Directed re-IPLOSA-Express3 Ethernet features Summary of benefits Feature Infrastructure Ports perPort density or granularity Purpose/Traffic FeaturesOSA-Express2 availability TypeOSA-Express3 Gigabit Ethernet SX OSA-Express3 10 Gigabit Ethernet SROSA-Express3 Gigabit Ethernet LX Four-port exploitation on OSA-Express3 GbE SX and LXNetwork Traffic Analyzer Dynamic LAN idle for z/OSLink aggregation for z/VM in Layer 2 mode Layer 2 transport mode When would it be used?Hardware data router Direct Memory Access DMAOSA Layer 3 Virtual MAC for z/OS IBM Communication Controller for Linux CCLRemove L2/L3 LPAR-to-LPAR Restriction OSA Integrated Console ControllerOSA/SF Virtual MAC and Vlan id Display Capability HiperSockets HiperSockets Enhancement for zIIP Exploitation Can Do IT securely Security CryptographyCP Assist for Cryptographic Function Cpacf Configurable Crypto Express2 Dynamically add crypto to a logical partition Secure Key AESTKE additional smart cards TKE 5.3 workstation and support for Smart Card ReaderEnhancement with TKE 5.3 LIC System z10 EC cryptographic migrationRemote Key Loading Benefits Remote Loading of Initial ATM KeysImproved Key Exchange With Non-CCA Cryptographic Systems On Demand Capabilities Capacity on Demand Temporary CapacityAmendment for CBU Tests Capacity Provisioning OS Capacity provisioning allows you to set up rules System z9 System z10Reliability, Availability, and Serviceability RAS RAS Design FocusHardware System Area HSA Availability FunctionsEnhanced Book Availability Concurrent Defective Book Replacement Concurrent Physical Memory UpgradeConcurrent Physical Memory Replacement Enhanced Driver MaintenanceTransparent Sparing Plan Ahead MemoryPower Estimation Tool Service EnhancementsPower Monitoring Environmental EnhancementsParallel Sysplex Cluster Technology IBM Systems Director Active Energy ManagerImproved service time with Coupling Facility Duplex Coupling Facility Control Code Cfcc LevelSystem-Managed CF Structure Duplexing Coupling Facility Configuration AlternativesParallel Sysplex Coupling Connectivity Introducing long reach InfiniBand coupling links Coupling Connectivity for Parallel SysplexZ10 Coupling Link Options Z10 EC MaxServer Time Protocol STP Time synchronization and time accuracy on z10 ECPreview Improved STP System Management with Enhanced Network Time Protocol NTP client support Continuous availability of NTP servers used as ExterNTP server on Hardware Management Console HMC Enhanced STP recovery when Internal Battery FeatureApplication Programming Interface API to automate Internal Battery Feature Recommendation Internet Protocol, Version 6 IPv6 HMC System SupportFamily Machine Type HMC/SE Console MessengerHMC z/VM Tower systems management enhancements Implementation Services for Parallel Sysplex GdpsFiber Quick Connect for Ficon LX Environments Z10 EC Environmentals Model O Cage Z10 EC Physical Characteristics Z10 EC Configuration DetailZ10 EC Dimensions Z9 EC Number of Frames 2 Frame Model O CageCPs IFLs Processor Unit Features ModelOSA-Express3 and OSA-Express2 Features Min Max ICFsGeneral Information Coupling Facility CF Level of Support Z9 BCStatement of Direction Following Redbook publications are available now PublicationsResource Link ZSO03018-USEN-02
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