IBM Z10 EC manual Availability Functions, Hardware System Area HSA, Enhanced Book Availability

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Availability Functions

With the z10 EC, signifi cant steps have been taken in the area of server availability with a focus on reducing pre- planning requirements. Pre-planning requirements are min- imized by delivering and reserving 16 GB for HSA so the maximum confi guration capabilities can be exploited. And with the introduction of the ability to seamlessly include such events as creation of LPARs, inclusion of logical subsystems, changing logical processor defi nitions in an LPAR, and the introduction of cryptography into an LPAR. Features that carry forward from previous generation pro- cessors include the ability to dynamically enable I/O, and the dynamic swapping of processor types.

Hardware System Area (HSA)

Fixed HSA of 16 GB is provided as standard with the z10 EC. The HSA has been designed to eliminate planning for HSA. Preplanning for HSA expansion for confi gurations will be eliminated as HCD/IOCP will, via the IOCDS process, always reserve:

•4 Logical Channel Subsystems (LCSS), pre-defi ned

•60 Logical Partitions (LPARs), pre-defi ned

•Subchannel set 0 with 63.75k devices

•Subchannel set 1 with 64K-1 devices

•Dynamic I/O Reconfi guration – always enabled by default

•Concurrent Patch - always enabled by default

•Add/Change the number of logical CP, IFL, ICF, zAAP, zIIP, processors per partition and add SAPs to the con- fi guration

•Dynamic LPAR PU assignment optimization CPs, ICFs, IFLs, zAAPs, zIIPs, SAPs

•Dynamically Add/Remove Crypto (no LPAR deactivation required)

Enhanced Book Availability

With proper planning, z10 EC is designed to allow a single book, in a multi-book server, to be non-disrup- tively removed from the server and re-installed during an upgrade or repair action. To minimize the effect on current workloads and applications, you should ensure that you have suffi cient inactive physical resources on the remain- ing books to complete a book removal.

For customers confi guring for maximum availability we rec- ommend to purchasing models with one additional book. To ensure you have the appropriate level of memory, you may want to consider the selection of the Flexible Memory Option features to provide additional resources when completing an Enhanced Book Availability action or when considering plan ahead options for the future. Enhanced Book Availability may also provide benefi ts should you choose not to confi gure for maximum availability. In these cases, you should have suffi cient inactive resources on the remaining books to contain critical workloads while completing a book replacement. Contact your IBM rep- resentative to help you determine and plan the proper confi guration to support your workloads when using non- disruptive book maintenance.

Enhanced Book Availability is an extension of the support for Concurrent Book Add (CBA) delivered on z990. CBA makes it possible to concurrently upgrade a server by integrating a second, third, or fourth book into the server without necessarily affecting application processing. The following scenarios prior to the availability of EBA would require a disruptive customer outage. With EBA these upgrade and repair procedures can be performed concur- rently without interfering with customer operations.

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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 chipArchitecture Liberating your assets with System zEvolving for your business Z10 EC ArchitecturePage Commitment to system integrity Page Linux on System z VSETPF 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 OfferingsCPU Measurement Facility Z10 EC PerformanceLarge System Performance Reference Z10 EC I/O Subsystem System I/O Configuration AnalyzerZ10 EC Channels and I/O Connectivity Concurrent Update Ficon Express4 and Ficon Express2 PerformanceSupport of Spanned Channels and Logical Partitions Modes of OperationFCP increased performance for small block sizes Ficon Support for Cascaded DirectorsFCP Channels Scsi IPL now a base function FCP Full fabric connectivityFicon and FCP for connectivity to disk, tape, and printers Platform and name server registration in Ficon channelIt will register NPort ID Virtualization Program Directed re-IPLPort density or granularity Feature Infrastructure Ports perOSA-Express3 Ethernet features Summary of benefits Features OSA-Express2 availabilityPurpose/Traffic TypeOSA-Express3 10 Gigabit Ethernet SR OSA-Express3 Gigabit Ethernet LXOSA-Express3 Gigabit Ethernet SX 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?Direct Memory Access DMA OSA Layer 3 Virtual MAC for z/OSHardware data router IBM Communication Controller for Linux CCLOSA/SF Virtual MAC and Vlan id Display Capability OSA Integrated Console ControllerRemove L2/L3 LPAR-to-LPAR Restriction HiperSockets HiperSockets Enhancement for zIIP Exploitation CP Assist for Cryptographic Function Cpacf Security CryptographyCan Do IT securely Configurable Crypto Express2 Dynamically add crypto to a logical partition Secure Key AESTKE 5.3 workstation and support for Smart Card Reader Enhancement with TKE 5.3 LICTKE additional smart cards System z10 EC cryptographic migrationImproved Key Exchange With Non-CCA Cryptographic Systems Remote Loading of Initial ATM KeysRemote Key Loading Benefits 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 FocusEnhanced Book Availability Availability FunctionsHardware System Area HSA Concurrent Physical Memory Upgrade Concurrent Physical Memory ReplacementConcurrent Defective Book Replacement Enhanced Driver MaintenanceTransparent Sparing Plan Ahead MemoryService Enhancements Power MonitoringPower Estimation Tool Environmental EnhancementsParallel Sysplex Cluster Technology IBM Systems Director Active Energy ManagerImproved service time with Coupling Facility Duplex Coupling Facility Control Code Cfcc LevelParallel Sysplex Coupling Connectivity Coupling Facility Configuration AlternativesSystem-Managed CF Structure Duplexing Introducing long reach InfiniBand coupling links Coupling Connectivity for Parallel SysplexZ10 Coupling Link Options Z10 EC MaxPreview Improved STP System Management with Time synchronization and time accuracy on z10 ECServer Time Protocol STP Enhanced Network Time Protocol NTP client support Continuous availability of NTP servers used as ExterApplication Programming Interface API to automate Enhanced STP recovery when Internal Battery FeatureNTP server on Hardware Management Console HMC Internal Battery Feature Recommendation HMC System Support Family Machine TypeInternet Protocol, Version 6 IPv6 HMC/SE Console MessengerHMC z/VM Tower systems management enhancements Implementation Services for Parallel Sysplex GdpsFiber Quick Connect for Ficon LX Environments Z10 EC Physical Characteristics Z10 EC Configuration Detail Z10 EC Dimensions Z9 EC Number of Frames 2 FrameZ10 EC Environmentals Model O Cage Model O CageProcessor Unit Features Model OSA-Express3 and OSA-Express2 Features Min MaxCPs IFLs ICFsGeneral Information Coupling Facility CF Level of Support Z9 BCStatement of Direction Resource Link PublicationsFollowing Redbook publications are available now ZSO03018-USEN-02
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