Hitachi 9900 Series, 9960 Hitachi Data Systems, Mirrored cache instead of single image cache.1

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•Mirrored cache instead of single image cache.1

Hitachi Data Systems

Bus contention is virtually eliminated with the Hi-StarArchitecture.

Figure 3 – System block diagram of the 7700E’s shared bus architecture.

Hitachi is the only major supplier of enterprise class storage systems with a 100% availability guarantee.

Comparison to the Shared Bus Architecture of the Hitachi Freedom Storage7700E

Unlike the shared common bus architecture of previous generation storage products, such as the 7700E (as shown in Figure 3 for reference to a shared bus architecture), Hi-Staris designed to truly scale in both capacity and performance. This is possible only with the Lightning 9900Series’ internally switched architecture which, unlike shared bus architectures, does not have to contend for limited bus bandwidth.

The Lightning 9900has an advanced availability profile compared to competitive products

The Lightning 9900was designed with maximum emphasis on high availability computing for today’s most critical enterprises. Figure 15 highlights some of the many advantages in high-availability design that the Lightning 9900has over competitive products.

Active dual-ported disk drives instead of single-port active drives.

Separate storage for control & configuration tables.

Mirrored cache instead of single image cache.1

Hitachi Data Systems is the leading supplier of storage systems for GDPS production sites.

NanoCopyis a superior scheme for disaster recovery.

High-availability, custom designed disk drives.

1Some competitive products do not have dual cache like the Hitachi Lightning 9900. If there is an unrecoverable error in cache, there is no duplicate backup copy. With these products there is an increased risk of lost data, especially if the loss occurs in the hardware status area. The Lightning 9900does not have this problem since all status areas and write data are duplexed. Although a minor concern to some given the low probability of occurrence, the thought of data loss is never comforting to enterprise executives charged with 7x24 operations.

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Contents Page Page Hitachi Data Systems Table of Contents Read-aheadfor High-performanceSequential Reads Hitachi Data SystemsRemote Copy Hitachi Data Systems Hitachi NanoCopy Implementation ServiceTable of Figures Hitachi Data Systems TablesThe most advanced design in storage IntroductionLightning 9900 Series Product Offerings Hitachi Data Systems The most powerful storage system in the worldIntroduction Mirrored cache instead of single image cache.1 Hitachi Data SystemsIntroduction Hitachi Data Systems Packaging The Lightning 9900 SeriesModel 9960 Packaging Model 9960 Control FrameModel 9960 Array Frames Hitachi Data SystemsModel 9910 Packaging The Lightning 9900 Series PackagingFigure 7 – A 9910 single-cabinetstorage subsystem Hitachi Data SystemsHitachi Lightning Front-endDesign of theSeries About the Fibre Channel Interface Boards Hitachi Data SystemsPage Bandwidth of Supported Host Interfaces Hitachi Data SystemsNumber of Host Interfaces Supported Hi-StarArchitecture – An Internal SwitchedHierarchical Star Network The Internal Hi-StarArchitectureArchitecture Hitachi Data SystemsPage The 9960 Provides 32GB of Fully Addressable Cache Hitachi Data SystemsRead-aheadfor High-performanceSequential Reads Control Memory Hierarchical Star NetworkPage Hitachi Data Systems High-speed Back-endDesign High Performance Back-endDesignNew Fibre Channel Disk Drives Maximum Configuration of ACPs and Disks Command Tag Queuing greatly improves performanceThe Importance of Command Tag Queuing CTQ Hitachi Data SystemsStorage Capacity of the Lightning 9900 Series Capacities and RAID ArchitectureRAID-1+ RAID-5- Distributed ParityHigh-densityDisk Drive Assemblies HDDs Hitachi Data SystemsHitachi High-Availability Software Improves Application Service LevelsOpen Systems High-AvailabilityMiddleware Support Hitachi Data Systems3.Host Failover Hitachi Data Systems Standard Hot-swapand Redundant Power Supplies4.Parallel Database Clustering Unmatched Competitive Advantage in RAID Choices Standard Redundant Fans for CoolingHitachi Data Systems Truly Scalable Performance Performance ConsiderationsTest Results Hitachi Data SystemsBest in the World Software Solutions Are theSoftware Solutions for the The Lightning 9900 SeriesHitachi Data Systems Figure 24 – Hitachi Data Systems offers a broad range of remote copy, data duplication, and data migration software solutionsPiT Copy Remote CopyData Migration Hitachi Data Systems and warehousingSystems Management Centralized and OpenSoftware Simplifies IT Operations A powerful and open systems management philosophyHitachi Data Systems HiCommand is an important Hitachi management tool in that it provides a comprehensive storage management software framework that enables an enterprise to manage all supported Hitachi storage products and many Hitachi software solutionsThe components of HiCommand Hitachi Data Systems Service Level ManagementHitachi Resource Manager Deployment ManagementHitachi LUN Manager is an open systems management utility. With Hitachi LUN Manager, open systems Logical Units LUNs can be defined, configured, and maintained. There is no more waiting for the hardware vendor to come and make configuration changes. Hitachi LUN Manager includes an easy-to-use, GUI-basedinterface that allows the easy definition of paths for LUNs, the reconfiguration of LUN-to-portassignments, or the viewing of the Lightning 9900 remote service information messages. Because the Hitachi LUN Manager can assign multiple paths to a single LUN, support of alternate path failover, path load balancing, and clustered systems is possible. Running on a standard Windows-basedPC connected to the storage subsystems by a dedicated LAN, Hitachi LUN Manager can support up to eight Lightning 9900 systems Hitachi CruiseControl Hitachi Data SystemsHitachi SANtinel Storage MaximizerHitachi Data Systems Professional Services Overview Professional Services and SupportData Protection Services Cost of Risk Analysis methodology CORARemote Copy Assessment and Implementation Service Data Protection Services LabHitachi NanoCopy Implementation Service Hitachi Data SystemsContinuous Availability Service Professional Services and SupportOn-lineData Migration Service SAN servicesHitachi Data Systems Software Portfolio Review and Analysis Servicethe Performance Experiment System Configurations forThe 7700E used all 6GB drives Hitachi Data Systems10BaseT Glossary of Terms100BaseT ACP pairAvailability Hitachi Data SystemsBack end Business Continuity Planning BCPCARB GlossaryCache CHIPConsistency Groups Hitachi Data SystemsControl Frame CORA Cost of Risk AnalysisGlossary Disaster RecoveryData Duplication Data MigrationEBCDIC Hitachi Data SystemsElectronic vaulting ESA/390Failover GlossaryFast Ethernet Fast writeHitachi Data Systems File BackupFICON Front EndGlossary Hitachi FlashAccessHDmS Hitachi CruiseControlHitachi Data Systems Hitachi Multiplatform Backup/RestoreHitachi InstantSplit Hitachi LUN ManagerGlossary Hitachi Rapid RecoveryHitachi Resource Manager Hitachi SANtinelHXRC Hitachi Extended Remote Copy Hitachi Data SystemsHYPERtape JavaGlossary Logical VolumeLightning 9900 Series Logical UnitMBCP Hitachi Data SystemsMIPS Meta-dataMTBF GlossaryMTTR NanoCopyOn-linesystem Hitachi Data SystemsOpen system Operating SystemGlossary Recovery TimeRAID RAID ControllersHitachi Data Systems SwitchSCSI SnapshotVolume Virtual Logical Volume Image ManagerGlossary SynchronousWarm site Hitachi Data SystemsWorkload Corporate Headquarters Hitachi Data Systems Worldwide OfficesAsia Headquarters Australia/New Zealand Headquarters