IBM Z10 BC manual Preview Improved STP System Management with

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join the two server CTN. Previously, if both the Preferred Time Server (PTS) and the Backup Time Server (BTS) experienced a simultaneous power outage (site failure), or both experienced a POR, reinitialization of time, and special roles (PTS, BTS, and CTS) was required. With this enhancement, you will no longer need to reinitialize the time or reassign the roles for these events.

Preview - Improved STP System Management with

new z/OS Messaging: This is a new function planned to generate z/OS messages when various hardware events that affect the External Time Sources (ETS) confi gured for an STP-only CTN occur. This may improve problem deter- mination and correction times. Previously, the messages were generated only on the Hardware Management Con- sole (HMC).

The ability to generate z/OS messages will be supported on IBM System z10 and System z9 servers with z/OS 1.11 (with enabling support rolled back to z/OS 1.9) in the second half of 2009.

The following Server Time Protocol (STP) enhancements are available on the z10 EC, z10 BC, z9 EC, and z10 BC. The prerequisites are that you install STP feature and that the latest MCLs are installed for the applicable driver.

NTP client support: This enhancement addresses the requirements of customers who need to provide the same accurate time across heterogeneous platforms in an enter- prise.

The STP design has been enhanced to include support for a Simple Network Time Protocol (SNTP) client on the Support Element. By confi guring an NTP server as the

STP External Time Source (ETS), the time of an STP-only Coordinated Timing Network (CTN) can track to the time provided by the NTP server, and maintain a time accuracy of 100 milliseconds.

Note: NTP client support has been available since October 2007.

Enhanced accuracy to an External Time Source: The time accuracy of an STP-only CTN has been improved by adding the capability to confi gure an NTP server that has a pulse per second (PPS) output signal as the ETS device. This type of ETS device is available worldwide from sev- eral vendors that provide network timing solutions.

STP has been designed to track to the highly stable, accurate PPS signal from the NTP server, and maintain an accuracy of 10 microseconds as measured at the PPS input of the System z server. A number of variables such as accuracy of the NTP server to its time source (GPS, radio signals for example), and cable used to connect the PPS signal will determine the ultimate accuracy of STP to Coordinated Universal Time (UTC).

In comparison, the IBM Sysplex Timer is designed to maintain an accuracy of 100 microseconds when attached to an ETS with a PPS output. If STP is confi gured to use

a dial-out time service or an NTP server without PPS, it is designed to provide a time accuracy of 100 milliseconds to the ETS device.

For this enhancement, the NTP output of the NTP server has to be connected to the Support Element (SE) LAN, and the PPS output of the same NTP server has to be con- nected to the PPS input provided on the External Time Ref- erence (ETR) card of the System z10 or System z9 server.

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Contents IBM System z10 Business Class z10 BC Reference Guide Table of Contents IBM System z10 Business Class z10 BC Overview Think Big, Virtually LimitlessMore Solutions, More Affordable Special workloads, Specialty engines, affordable technologyNew Face Of System z Architecture Z10 BC ArchitectureArchitecture operating system support Page Commitment to system integrity VSE TPFLinux on System z Operating System ESA/390Z10 BC Page Page Z10 BC Design and Technology Z10 BC Model Z10 BC capacity identifiersMemory Dimm sizes 2 GB and 4 GB Z10 BC model upgrades Z10 BC Model Capacity IDsZ10 BC Performance Large System Performance ReferenceCPU Measurement Facility Z10 BC I/O Subsystem System I/O Configuration AnalyzerZ10 BC Channels and I/O Connectivity Concurrent Update Support of Spanned Channels and Logical PartitionsModes of Operation Ficon Support for Cascaded Directors FCP ChannelsFCP Full fabric connectivity FCP increased performance for small block sizesScsi IPL now a base function High Performance Ficon improvement in performancePreplanning and setup of SAN for a System z10 environment Platform and name server registration in Ficon channelNPort ID Virtualization DistanceFicon Express enhancements for Storage Area Networks Program Directed re-IPLFicon Link Incident Reporting Serviceability EnhancementsFeature Infrastructure Ports per OSA-Express3 the newest family of LAN adaptersOSA-Express3 Ethernet features Summary of benefits OSA-Express2 availabilityType FeaturesPurpose/Traffic OSA-Express3 10 Gigabit Ethernet LROSA-Express3 1000BASE-T Ethernet OSA-Express3-2P Gigabit Ethernet SXFour-port exploitation on OSA-Express3 GbE SX and LX OSA-Express3-2P 1000BASE-T EthernetNetwork Traffic Analyzer Link aggregation for z/VM in Layer 2 mode Dynamic LAN idle for z/OSLayer 2 transport mode When would it be used? OSA Layer 3 Virtual MAC for z/OSIBM Communication Controller for Linux CCL Direct Memory Access DMAHardware data router OSA-Express3 and OSA-Express2 OSN OSA for NCPOSA Integrated Console Controller Remove L2/L3 LPAR-to-LPAR RestrictionOSA/SF Virtual MAC and Vlan id Display Capability HiperSockets HiperSockets Enhancement for zIIP Exploitation Security Cryptography Can Do IT securelyCP Assist for Cryptographic Function Cpacf Enhancements to CP Assist for Cryptographic Func Tion Cpacf Configurable Crypto Express2Crypto Express2-1P Dynamically add crypto to a logical partition Support for ISOSupport for RSA keys up to 4096 bits Secure Key AESEnhancement with TKE 5.3 LIC Support for 13- thru 19-digit Personal Account NumbersTKE 5.3 workstation Smart Card ReaderRemote Loading of Initial ATM Keys TKE additional smart cards new featureSystem z10 BC cryptographic migration Remote Key Loading BenefitsOn 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 Enhanced Driver MaintenanceAvailability Functions Redundant I/O InterconnectService Enhancements Dynamic Oscillator SwitchoverConcurrent Memory Upgrade Transparent SparingEnvironmental Enhancements Power MonitoringPower Estimation Tool IBM Systems Director Active Energy ManagerImproved service time with Coupling Facility Duplex Parallel Sysplex Cluster TechnologyCoupling Facility Control Code Cfcc Level Coupling Facility Configuration Alternatives System-Managed CF Structure DuplexingParallel Sysplex Coupling Connectivity Introducing long reach InfiniBand coupling linksCoupling Connectivity for Parallel Sysplex Server Time Protocol STP Z10 Coupling Link OptionsTime synchronization and time accuracy on z10 BC Server Time Protocol enhancementsPreview Improved STP System Management with Enhanced STP recovery when Internal Battery Feature Continuous Availability of NTP servers used as ExterInternal Battery Feature Recommendation Application Programming Interface API to automateInternet Protocol, Version 6 IPv6 HMC System SupportFamily Machine Type HMC/SE Console MessengerEnhanced installation support for z/VM using the HMC HMC z/VM Tower System Management EnhancementsImplementation Services for Parallel Sysplex Fiber Quick Connect for Ficon LX Environments GdpsZ10 BC Highlights and Physical Dimensions Z9 BC Z10 BC Physical CharacteristicsZ10 BC System Power Physical PlanningZ10 BC Configuration Detail Z10 BC Concurrent PU ConversionsIBF Z10 BC Model StructureZ10 BC Minimum Maximum Z10 BC IBF hold uptime Drawer DrawersCoupling Facility CF Level of Support Z890Statement of Direction Available in the Library section of Resource Link PublicationsFollowing Redbook publications are available now Resource LinkZSO03021-USEN-02
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