IBM Z10 EC manual NTP server on Hardware Management Console HMC

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always accepted by some environments. The STP design provides continuous availability of ETS while maintaining the special roles of PTS and BTS assigned by the enter- prise.

The improvement is available when the ETS is confi gured as an NTP server or an NTP server using PPS.

NTP server on Hardware Management Console (HMC):

Improved security can be obtained by providing NTP server support on the HMC. If an NTP server (with or with- out PPS) is confi gured as the ETS device for STP, it needs to be attached directly to the Support Element (SE) LAN. The SE LAN is considered by many users to be a private dedicated LAN to be kept as isolated as possible from the intranet or Internet.

Since the HMC is normally attached to the SE LAN, pro- viding an NTP server capability on the HMC addresses the potential security concerns most users may have for attaching NTP servers to the SE LAN. The HMC, using a separate LAN connection, can access an NTP server available either on the intranet or Internet for its time source. Note that when using the HMC as the NTP server, there is no pulse per second capability available. There- fore, you should not confi gure the ETS to be an NTP server using PPS.

Enhanced STP recovery when Internal Battery Feature

is in use: Improved availability can be obtained when power has failed for a single server (PTS/CTS), or when there is a site power outage in a multisite confi guration where the PTS/CTS is installed (the site with the BTS is a different site not affected by the power outage). If an Internal Battery Feature (IBF) is installed on your System

z server, STP now has the capability of receiving notifi ca- tion that customer power has failed and that the IBF is engaged. When STP receives this notifi cation from a server that has the role of the PTS/CTS, STP can automatically reassign the role of the CTS to the BTS, thus automating the recovery action and improving availability.

STP configuration and time information saved across

Power-on-Resets (POR) or power outages: This

enhancement delivers system management improvements by saving the STP confi guration across PORs and power failures for a single server STP-only CTN. Previously, if there was a POR of the server or the server experienced a power outage, the time and assignment of the PTS and CTS roles would have to be reinitialized. You will no longer need to reinitialize the time or reassign the role of PTS/CTS across POR or power outage events.

Note: This enhancement is also available on the z990 and z890 servers, in addition to System z10 and System z9 servers.

Application Programming Interface (API) to automate

STP CTN reconfiguration: The concept of “a pair and a spare” has been around since the original Sysplex Couple Data Sets (CDSs). If the primary CDS becomes unavailable, the backup CDS would take over. Many sites have had automation routines bring a new backup CDS online to avoid a single point of failure. This idea is being extended to STP. With this enhancement, if the PTS fails and the BTS takes over as CTS, an API is now available on the HMC so you can automate the reassignment of the PTS, BTS, and Arbiter roles. This can improve availability by avoiding a single point of failure after the BTS has taken over as the CTS.

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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 Specialty engines offer an attractive alternative Just-in-time deployment of IT resourcesNumerical computing on the chip Order of introductionZ10 EC Architecture ArchitectureLiberating your assets with System z Evolving for your businessPage Commitment to system integrity Page TPF VSELinux on System z Operating System ESA/390 Z10 ECPage Page Z10 EC Design and Technology Z10 EC Model Z10 EC Base and Sub-capacity Offerings Z10 EC model upgradesLarge System Performance Reference Z10 EC PerformanceCPU Measurement Facility System I/O Configuration Analyzer Z10 EC I/O SubsystemZ10 EC Channels and I/O Connectivity Modes of Operation Concurrent UpdateFicon Express4 and Ficon Express2 Performance Support of Spanned Channels and Logical PartitionsFCP Channels Ficon Support for Cascaded DirectorsFCP increased performance for small block sizes Platform and name server registration in Ficon channel Scsi IPL now a base functionFCP Full fabric connectivity Ficon and FCP for connectivity to disk, tape, and printersIt will register Program Directed re-IPL NPort ID VirtualizationOSA-Express3 Ethernet features Summary of benefits Feature Infrastructure Ports perPort density or granularity Type FeaturesOSA-Express2 availability Purpose/TrafficFour-port exploitation on OSA-Express3 GbE SX and LX OSA-Express3 10 Gigabit Ethernet SROSA-Express3 Gigabit Ethernet LX OSA-Express3 Gigabit Ethernet SXDynamic LAN idle for z/OS Network Traffic AnalyzerLayer 2 transport mode When would it be used? Link aggregation for z/VM in Layer 2 modeIBM Communication Controller for Linux CCL Direct Memory Access DMAOSA Layer 3 Virtual MAC for z/OS Hardware data routerRemove 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 Secure Key AES Dynamically add crypto to a logical partitionSystem z10 EC cryptographic migration TKE 5.3 workstation and support for Smart Card ReaderEnhancement with TKE 5.3 LIC TKE additional smart cardsRemote Key Loading Benefits Remote Loading of Initial ATM KeysImproved Key Exchange With Non-CCA Cryptographic Systems Capacity on Demand Temporary Capacity On Demand CapabilitiesAmendment for CBU Tests Capacity Provisioning System z9 System z10 OS Capacity provisioning allows you to set up rulesRAS Design Focus Reliability, Availability, and Serviceability RASHardware System Area HSA Availability FunctionsEnhanced Book Availability Enhanced Driver Maintenance Concurrent Physical Memory UpgradeConcurrent Physical Memory Replacement Concurrent Defective Book ReplacementPlan Ahead Memory Transparent SparingEnvironmental Enhancements Service EnhancementsPower Monitoring Power Estimation ToolIBM Systems Director Active Energy Manager Parallel Sysplex Cluster TechnologyCoupling Facility Control Code Cfcc Level Improved service time with Coupling Facility DuplexSystem-Managed CF Structure Duplexing Coupling Facility Configuration AlternativesParallel Sysplex Coupling Connectivity Coupling Connectivity for Parallel Sysplex Introducing long reach InfiniBand coupling linksZ10 EC Max Z10 Coupling Link OptionsServer Time Protocol STP Time synchronization and time accuracy on z10 ECPreview Improved STP System Management with Continuous availability of NTP servers used as Exter Enhanced Network Time Protocol NTP client supportNTP server on Hardware Management Console HMC Enhanced STP recovery when Internal Battery FeatureApplication Programming Interface API to automate Internal Battery Feature Recommendation HMC/SE Console Messenger HMC System SupportFamily Machine Type Internet Protocol, Version 6 IPv6HMC z/VM Tower systems management enhancements Gdps Implementation Services for Parallel SysplexFiber Quick Connect for Ficon LX Environments Model O Cage Z10 EC Physical Characteristics Z10 EC Configuration DetailZ10 EC Dimensions Z9 EC Number of Frames 2 Frame Z10 EC Environmentals Model O CageICFs Processor Unit Features ModelOSA-Express3 and OSA-Express2 Features Min Max CPs IFLsGeneral Information Z9 BC Coupling Facility CF Level of SupportStatement of Direction Following Redbook publications are available now PublicationsResource Link ZSO03018-USEN-02
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