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1.1 HDS 高端USP VM磁盘存储产品介绍1.1.1 HDS USP VM磁盘存储产品硬件介绍Hitachi TagmaStore™网络存储控制器USP VM是HDS2007年最新推出的机架式设备，符合企业的成本要求。
它采用了Hitachi Universal Star Network™交换架构，提供由业内领先的Hitachi TagmaStore通用存储平台带来的，经过验证的企业级功能：外部存储虚拟化、逻辑资源分区和通用复制。
HDS TagmaStore USP VM为HDS公司的第四代全光纤交换式企业级磁盘存储系统，内部仍然延续了HDS的CrossBar的交换式结构（通过Cache Switch，实现前端主机接口控制器、后端磁盘通道接口控制器数据到Cache的数据快速交换），采用了Hitachi自主研发Hi-Star III交换芯片,具有更高的数据交换能力，因此可以提供更高的内部带宽。
正是因为这样的传承，USP VM为用户带来了前所未有的性能、可用性和可靠性，以及先进的存储管理和数据复制功能。
用户可以把各种异构存储系统整合为一个虚拟池，通过一个中央控制台，使用一套通用的工具进行管理，从而简化存储环境，最大限度地利用现有资源，降低总体拥有成本。
一个新的存储类型根据IDC的研究，通用存储平台代表了一种新型存储技术，能够“潜在影响”存储解决方案市场变化的产品。
USP VM是这种类型的入门级产品，可以提供：•基于控制器的虚拟化管理，最多可管理96PB内部和外接存储•8个逻辑分区、专用高速缓存、端口以及内部和外部容量，以保证应用服务质量(QoS)•在异构存储系统之间实现通用复制，保证业务连续性•HDS TagmaStore USP VM提供虚拟化技术HDS TagmaStore USP VM HDS提供存储虚拟化的技术，可以实现将不同厂商的存储系统集合到同一个存储池中。
HDS TagmaStore USP VM内部的磁盘为内部存储资源，与之相连的其它存储设备上的资源是外部资源（可外连的磁盘存储设备包括Lightning Storage 9900V, 9900, 7700E、Thunder Storage 9500V&9200、IBM Shark、EMC Symmetrix&DMX、EMC CX系列等）。
Hitachi Unified Storage VM（HUS VM）日立高端统一存储产品介绍日立数据系统有限公司2020年5月目录一. 概述 (1)二. HDS HUS VM技术的技术优势 (5)2.1统一存储 (5)2.2全新一代H I-S TAR交换架构 (8)2.3通用处理器单元MP (10)2.4C ACHE的设计 (11)2.5强大的扩展能力 (13)2.6存储管理功能 (13)三. HUS VM软件包 (14)3.1B ASIC O PERATING S YSTEM-（基本操作系统） (14)3.2H ITACHI C OMMAND S UITE M OBILITY（数据移动和灵活性） (17)3.3H ITACHI C OMMAND S UITE A NALYTICS(高级分析和监控软件包) (19)3.4H ITACHI L OCAL R EPLICATION（本地数据保护） (21)3.5H ITACHI R EMOTE R EPLICATION（远程数据保护） (23)四. HDS HUS VM产品技术指标 (27)4.1H ITACHI U NIFIED S TORAGE VM规格:主机端口 (27)4.2H ITACHI U NIFIED S TORAGE VM规格:可用性 (27)4.3H ITACHI U NIFIED S TORAGE VM规格:支持的操作系统 (28)4.4H ITACHI U NIFIED S TORAGE VM规格:物理特性 (28)4.5H ITACHI U NIFIED S TORAGE VM规格:软件 (30)4.6外接存储系统兼容列表（存储虚拟化） (32)五. HUS VM 场地准备要求 (38)5.1HUS VM环境要求 (38)5.2HUS VM电源要求 (39)5.3HUS VM模块装配图示 (41)5.4HUS VM控制器图示 (42)5.5HUS VM设备尺寸及机柜摆放 (43)一. 概述日立数据解决方案价值定位今天的数据中心，除了需要面对数据量的急剧增长以及存储基础架构的复杂性之外，如何在统一存储架构中支持多种数据（块数据、文件数据、对象数据）的综合存储需求也是目前大部分企业普遍面临的问题，企业需要在满足传统的高可用性、性能、可扩展性之外，能够从容应对管理、运维以及SLO要求。
Hitachi Dynamic Link Manager (for AIX) 8.5.0-00 Release NotesContentsAbout this document (1)Intended audience (1)Getting help (2)About this release (2)Product package contents (2)New features and important enhancements (2)System requirements (2)Resolved problems (5)Known problems (5)Closing known problems (6)Installation precautions (6)Usage precautions (7)Documentation (9)Appendix A (10)Copyrights and licenses ............................................................................. 11 About this documentThis document (RN-00HS271-38, October 2016) provides late-breakinginformation about Hitachi Dynamic Link Manager (for AIX) 8.5.0-00. It includes information that was not available at the time the technical documentation forthis product was published, as well as a list of known problems and solutions.Intended audienceThis document is intended for customers and Hitachi Data Systems partners who license and use Hitachi Dynamic Link Manager (for AIX).Getting helpGetting helpHitachi Data Systems Support Connect is the destination for technical support of products and solutions sold by Hitachi Data Systems. To contact technicalsupport, log on to Hitachi Data Systems Support Connect for contact information: https:///en_us/contact-us.html.Hitachi Data Systems Community is a global online community for HDScustomers, partners, independent software vendors, employees, and prospects.It is the destination to get answers, discover insights, and make connections. Join the conversation today! Go to , register, and complete your profile.About this releaseThis release is a major release that adds new features and resolves multipleknown problems.Product package contentsNew features and important enhancements[8.5.0-00 Additional Functions and Modifications]1.Hitachi Virtual Storage Platform G1500 and Hitachi Virtual Storage PlatformF1500 are now supported.2.You can now specify the -j option when executing the nimadm command toperform an update installation of HDLM.3.RAS features were improved.System requirementsRefer to Chapter 3. Creating an HDLM environment of the Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide.HostFor details on supported hosts, refer to the following manual:- Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements -Host and OS support for HDLMHost bus adapter (HBA)For information on supported HBAs and drivers, refer to Appendix A - Host Bus Adapter (HBA) Support Matrix.StorageFor details on supported storage systems, refer to the following manual:- Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements -Storage systems supported by HDLMRequirements to use a HAM environment are as follows:- HDLM supports the HAM functionality of the following storage system:- Hitachi Universal Storage Platform V/VM- Hitachi Virtual Storage Platform- HP XP24000/XP20000- HP P9500- Hitachi Unified Storage VMThe required microprogram versions are listed below:*1: If you use the HAM functionality with USP V or XP24000, apply 70-03-00-XX/XX or later.- HDLM for AIX supports the following cluster software in a HAMenvironment:*1: When executing reverse resynchronization for recovering the owner path from a failure, PowerHA must be stopped before the reverseresynchronization.-Perform the following settings:(1) Set the reserve_policy attribute of hdisks as "no_reserve".(2) Set the "prevents I/O on the Online(E) path" setting of HDLM as "on".VirtualizationFor details on supported virtualization environment, refer to the following manual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements - Host and OS support for HDLMOperating systems requirementsFor details on supported operating system, refer to the following manual: -Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements - Host and OS support for HDLMEach OS Patch for applicable OSs can be downloaded from IBM official website or FTP site (ftp:///aix/efixes/).Prerequisite programsFor details on related programs, refer to the following manual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements - Host and OS support for HDLMRelated programsFor details on related programs, refer to the following manual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements - Storage systems supported by HDLM - When handling intermediatevolumes managed by Hitachi RapidXchange-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements - Cluster software supported by HDLMMemory and disk capacity requirementsFor details on memory and disk capacity requirements, refer to the following manual:Resolved problems-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements -Memory and disk capacity requirementsHDLM supported configurationsFor details on the condition that HDLM can manage space requirements, refer to the following manual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - HDLM system requirements -Number of LUs and paths that are supported in HDLMResolved problems[8.5.0-00 Modifications](1) When HDLM 8.2.0-00 or later is used, SNMP traps are no longer sent toHitachi Global Link Manager(HGLM) after 248 days pass from the startup ofthe HDLM manager.[Conditions]This problem occurs when all of the following conditions are met:1. HGLM 8.2.0-00 or later is used to manage a host on which HDLM8.2.0-00 to 8.4.1-00 is installed.2. In HGLM, the alert notification function for receiving alerts from thehost is enabled.3. HDLM is managed by using HGLM.4. 248 days have passed from the startup of the HDLM manager.[Case ID]None.Known problems(1) Precautions when deleting all HDLM devices on a server:When deleting all devices managed by HDLM (*1) in local boot disk environment (*2), note the following two items:1.If Auto Failback is set to ON, set it to OFF before the deletionprocessing. After the deletion processing completes, reset it back to ON.Without this process, a server may crash due to an OS issue.2.Do not execute the following procedures while deleting the devicesmanaged by HDLM. If executed, a server may crash due to an OS issue.- Online operation- lspath/chpath/rmpath of the OS command executionClosing known problems*1: This operation will be performed when performing the following procedures: - The upgrade installation, re-installation or uninstallation- The deletion of all HDLM devices by dlmrmdev or rmdev command in deleting LU.*2: If using HDLM in the boot disk environment, these precautions are notapplicable.(2) Notes for executing DLMgetras utility:If you specify a directory under an NFS mount point as an output destination and then execute DLMgetras utility, an empty directory named"DLMgetras_tmpdir.xxxx/the_specified_directory_name" may be created for the output destination directory ("xxxx" is an optional numeric value).When the empty directory exists after executing DLMgetras utility, delete the directory.(3) Notes for disk fencing feature for PowerHA 7.2:The disk fencing feature for quarantine policies is not supported.(4) Notes on upgrading, re-installing, or uninstalling HDLM in a PowerHA 7.2environment:To upgrade, re-install, or uninstall HDLM for one or more nodes in a PowerHA 7.2 environment, stop PowerHA 7.2 for the cluster system as a whole.If you attempt to perform an upgrade installation, overwrite installation, oruninstallation of HDLM while PowerHA 7.2 is still running on one or more nodes, HDLM devices sometimes cannot be deleted or defined.Closing known problemsNone.Installation precautionsFor details on HDLM installation, refer to the following manual:Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - Notes on creating an HDLMenvironmentUpdating installation of HDLM precautionsFor details on updating HDLM, refer to the following manual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - Notes on creating an HDLMenvironment - Notes on an upgrade installation or re-installation of HDLMUninstallation precautionsFor details on HDLM uninstallation, refer to the following manual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - Removing HDLMSystem generate precautionsFor details on HDLM system generate, refer to the following manual: -Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 3. Creating an HDLM environment - Notes on creating an HDLMenvironmentUsage precautionsFor details on usage Precautions when using HDLM, refer to the followingmanual:-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 4. HDLM operation - Notes on using HDLM-Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter 4. HDLM operation - HDLM operations using commands -Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter A. Functional differences between versions of HDLM -Hitachi Command Suite Dynamic Link Manager (for AIX) User Guide Chapter B. Differences between HDLM version 5.9 or later and version5.8.1 or earlierAdditional usage precautions(1) Version numbers to be displayed after this version of HDLM is installed are as follows:(2) The following example shows the text displayed when dlnkmgr view -sys is executed:(3) Notes on HAM environments- In the case of displaying the LU information, the HAM information is not output by specifying the "all" parameter-value for the HDLM command. Specify the "ha" and "hastat" parameter-value instead.- An online operation is performed on an owner path, a non-owner path's status may change to Offline(E). After performing an online operation on an owner path, use the HDLM command to make sure that the non-owner path's status is Online.If the non-owner path's status is Offline(E), change the status of HAM pairs to PAIR, and then perform an online operation on the Offline(E) path again.- When you set up a HAM pair to be managed by HDLM, make sure that the host recognizes paths to the MCU (Primary VOL) and RCU (Secondary VOL) after the HAM pair is created.Execute the dlnkmgr view -lu -item hastat operation. If ha is not displayed in the HaStat column, then the corresponding LU is not recognized as being in a HAM configuration.If the host recognizes the paths to the MCU and RCU before the HAM pair iscreated, restart the host after the HAM pair is created.- If you release a HAM pair to recover the system after a HAM volume failure, do not restart a host that is connected to the MCU and RCU while the HAM pair is released.If you need to restart the host while the HAM pair is released, disconnect allpaths to the MCU and RCU, restart the host, re-create the HAM pair, and then reconnect the paths.If you restart a host that is connected to the MCU and RCU while the HAM pair is released, the RCU volume will be recognized as a volume other than an MCUvolume. If this occurs, restart the host after the HAM pair is re-created.Execute the dlnkmgr view -lu -item hastat operation, and then confirm that ha is displayed in the HaStat column.DocumentationAvailable documentsDocumentation errataNone.Appendix AHost Bus Adapter (HBA) Support MatrixUse the SCSI I/F adapter or Fibre Channel I/F adapters listed below. When using two or more adapters, use the same type of adapter. If you combine different types of HBA, HDLM may not be able to switch a path when an error occurs.The combination of HBA which can exist together is as follows.- FC5716, FC1977 and FC1957- FC5758 and FC1905- FC5759 and FC1910(*1): HBA hot swap is not supported for this HBA because this HBA is not asupported hot plug.Copyrights and licenses© 2016, Hitachi, Ltd. All rights reserved.No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or stored in a database or retrieval system for any purpose without the expresswritten permission of Hitachi, Ltd.Hitachi, Ltd., reserves the right to make changes to this document at any time without notice and assumes no responsibility for its use. This document contains the most current information available at the time of publication. When new or revised information becomes available, this entire document will be updated and distributed to all registered users.Some of the features described in this document might not be currently available.Refer to the most recent product announcement for information about featureand product availability, or contact Hitachi, Ltd., athttps:///en_us/contact_us.html.Notice: Hitachi, Ltd., products and services can be ordered only under the terms and conditions of the applicable Hitachi Data Systems Corporation agreements.The use of Hitachi, Ltd., products is governed by the terms of your agreements with Hitachi Data Systems Corporation.By using this software, you agree that you are responsible for:1) Acquiring the relevant consents as may be required under local privacy laws orotherwise from employees and other individuals to access relevant data; and2) Verifying that data continues to be held, retrieved, deleted, or otherwiseprocessed in accordance with relevant laws.Notice on Export Controls. The technical data and technology inherent in this Document may be subject to U.S. export control laws, including the U.S. Export Administration Act and its associated regulations, and may be subject to export or import regulations in other countries. Reader agrees to comply strictly with all such regulations and acknowledges that Reader has the responsibility to obtain licenses to export, re-export, or import the Document and any CompliantProducts.Hitachi is a registered trademark of Hitachi, Ltd., in the United States and other countries. Hitachi Data Systems is a registered trademark and service mark of Hitachi, Ltd., in the United States and other countries.Archivas, BlueArc, Essential NAS Platform, HiCommand, Hi-Track, ShadowImage, Tagmaserve, Tagmasoft, Tagmasolve, Tagmastore, TrueCopy, Universal StarNetwork, and Universal Storage Platform are registered trademarks of HitachiData Systems Corporation.AIX, AS/400, DB2, Domino, DS6000, DS8000, Enterprise Storage Server, ESCON, FICON, FlashCopy, IBM, MVS, Lotus, OS/390, RS6000, S/390, System z9,System z10, Tivoli, VM/ESA, z/OS, z9, z10, zSeries, z/VM, and z/VSE areregistered trademarks and DS6000, MVS, and z10 are trademarks ofInternational Business Machines Corporation.Active Directory, ActiveX, Bing, Excel, Hyper-V, Internet Explorer, the Internet Explorer logo, Microsoft, the Microsoft Corporate Logo, MS DOS, Outlook, PowerPoint, SharePoint, Silverlight, SmartScreen, SQL Server, Visual Basic, Visual C++, Visual Studio, Windows, the Windows logo, Windows Azure, Windows PowerShell, Windows Server, the Windows start button, and Windows Vista are registered trademarks or trademarks of Microsoft Corporation. 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HP StorageWorks XP24000磁盘阵列是一款大型企业级存储系统，专门针对不允许出现任何停机或数据丢失的企业而设计。
XP24000具有完全硬件冗余特性，采用热插拔组件，支持无中断的在线升级，可最大限度地降低业务停机造成的风险，帮助企业打造一个可“防弹”的存储平台。
它将数据复制、紧密集成的集群解决方案和灾难恢复(DR)支持集于一身，具备多站点容灾功能，可确保业务连续、稳定的运行。
此外，XP24000还支持广泛的软件产品组合，从而降低了数据管理的成本和复杂性。
通过自动精简配置，企业还可以降低存储成本。
现在，IT 主管可从单一存储池中分配所需的逻辑容量，并可按需购买物理容量。
作为一个虚拟化平台，XP24000具有诸多重要功能，例如，异构数据迁移、阵列再利用及存储分层。
借助阵列分区功能，XP24000能使宝贵的存储资源得到更加合理的应用。
分区功能可将阵列资源分配给相应的应用和管理器，进而提高存储整合的成功机率。
每一个分区都可以根据需要进行单独配置和动态变更。
您可以将运行有不同操作系统的主机连接到同一个XP24000上，这样便可缩短您管理异构环境所需的时间，并简化备份和灾难恢复解决方案的实施过程。
HP StorageWorks XP24000磁盘阵列产品说明HP StorageWorks XP24000磁盘阵列是一个性能卓越的存储解决方案，专为需要连续数据可用性的企业而设计。
该磁盘阵列可以根据需要灵活分配容量，将多种磁盘阵列虚拟化，还可以划分存储资源进行分区或与多个主机相连。
XP24000可帮助IT 经理们对其数据中心进行整合并提高运营效率。
XP24000及其一流的软件可确保持续的数据可用性和可靠的数据保护，能够最大限度地降低业务风险。
它还提供了高效的管理解决方案，可帮助您降低成本，提升业务成效。
信赖XP24000的表现，无论何时何地，它都能为您的员工提供其所需的业务信息。
主要特性及优势•精良的“防弹”设计、避免意外故障的发生－如果企业需要保持连续的运营状态，那么数据丢失或停机就成了最大的风险。
济南钢厂存储项目方案书二零零四年六月第1章. 用户应用环境与需求 (3)1.1. 应用环境现状分析 (3)1.2. 济钢存储体系的建设目标 (3)第2章. SAN存储集中技术方案 (5)2.1. SAN存储集中基础设施方案 (5)2.2. SAN存储备份管理方案 (9)第3章. SAN存储容灾技术方案 (14)3.1. 风险分析 ................................................................... 错误！未定义书签。
3.2. 灾难恢复的目的......................................................... 错误！未定义书签。
3.3. 数据容灾技术方案 (14)3.3.1.HDS ShadowImage ................................................... 错误！未定义书签。
3.3.2.Quick Shadow软件介绍.......................................... 错误！未定义书签。
3.3.3.HDS 远程数据备份技术TrueCopy同步方式 (15)3.4. 异地灾备中心设备配置清单 (16)第1章.用户应用环境与需求1.1.应用环境现状分析目前，总公司的信息化建设取得了阶段性的成果，OA及ERP项目已经实施并发挥了良好的作用，内网外网的建设也得到了充分的发展，MES、计质量管理等系统也已步入健康发展的轨道。
总公司信息系统的主要硬件构成包括大型的SUN 4800到DELL2650等不同级别的服务器分别连接到独立的SUN T3(通过光纤HUB)和DELL PowerV ault存储设备及内置磁盘。
如下图所示：在相当长的时期内，这种体系结构为信息化的发展发挥了应有的作用。
但随着业务的拓展和信息技术的发展，这种结构越来越多的表现出其不足，从系统使用的方便性、可管理性、存储的利用率、安全性、网络负载等方面显露其局限性，不再能适应济钢集团信息系统建设的要求，建设基于SAN架构的集中存储体系的完整解决方案是非常必要的。
Hitachi Virtual Storage Platform G1000 HDS新一代企业级存储日立数据系统有限公司2022年4月目录一. 概述 (1)二. VSP G1000技术的技术优势 (4)2.1永续运行 (4)2.2高度灵活的基础架构 (4)2.3自动、智能的架构 (9)2.4统一存储 (10)2.5无中断数据迁移 (11)2.6VSP G1000水平扩展的基础架构 (14)三. VSP G1000软件包 (16)3.1SVOS（存储虚拟化操作系统） (16)3.2HITACHI COMMAND SUITE DATA MOBILITY（数据移动和灵活性） (19)3.3H ITACHI C OMMAND S UITE A NALYTICS(高级分析和监控软件包) (21)3.4H ITACHI L OCAL R EPLICATION（本地数据保护） (23)3.53.5H ITACHI R EMOTE R EPLICATION（远程数据保护） (25)3.6F ILE B ASE（统一存储） (28)四. VSP G1000产品技术指标 (31)4.1VSP G1000规格:主机端口 (31)4.2VSP G1000规格:可用性 (31)4.3VSP G1000规格:支持的操作系统 (32)4.4H ITACHI V IRTUAL S TORAGE P LATFORM G1000规格:物理特性 (33)4.5H ITACHI V IRTUAL S TORAGE P LATFORM G1000规格:软件 (34)4.6外接存储系统兼容列表（存储虚拟化） (37)五. VSP G1000 场地准备要求 (44)5.1VSP G1000环境要求 (44)5.2VSP G1000电源要求 (45)5.3VSP G1000模块装配图示 (47)5.4VSP G1000控制器图示 (48)5.5VSP G1000设备尺寸 (49)5.6机柜及服务空间 (49)一. 概述如今，数据中心的运营耗费了大量的人力，这通常会阻碍IT团队与不断变化的业务需求保持同步发展。
D A T A S HE E THitachi Data SystemsHitachi Dynamic Link Manager Advanced software offers robust multipath SAN connections between servers and storage systems with fault tolerant failover, failback and load balancing, as well as integrated path management for improved information access and availability.Hitachi Dynamic Link Manager Advanced SoftwareHitachi Dynamic Link Manager Advanced — Data Path Protection and Unified Management for Enhanced Performance and Nonstop AvailabilityIn today’s information driven business envi-ronment, 24/7 data access and availability is a must. Well planned business continuity strategies must include the ability to protect data as it travels from the server to the storage system. This is a difficult challenge, as data paths can become congested — resulting in bottlenecks — or fail entirely, cutting off access to key information.Hitachi Dynamic Link Manager Advanced software provides comprehensive path failover and failback to ensure higher data availability and accessibility. Automatic load balancing helps to maintain outstanding system performance by balancing workloads across all available paths. If one path were to fail, Hitachi Dynamic Link Manager Advanced would automatically switch the I/O to an alternate path, helping to ensure that an active route to your data is always available.For organizations overwhelmed by the dif-ficulties of managing multiple storage paths integrated storage path management and reporting to increase administrator efficiencies and minimize configuration errors. Adminis-trators can optimize application performance by controlling path bandwidth — and keep applications online to perform maintenance tasks that typically require taking a path down by easily switching to and from alternate paths. Automatic path health checks and reporting from each host improve system reliability, reduce downtime and aid in rapid problem troubleshooting.BenefitsProtect Data AvailabilityReduces the risk of financial loss due to ■■failures of critical applications via path failover Achieves a higher level of data availability ■■through automatic failover and failback Keeps applications online while performing ■■maintenance that requires taking a path down Adds value to existing path-failover products■■Optimize System PerformanceImproves system performance by taking ■■all storage I/O requests and splitting the workload across available pathsMonitors the status of online paths through ■■a health check facility at administrator-specified intervals and places a failed path offline when an error is detectedBusiness SolutionsHitachi Data Systems and its HitachiTrueNorth Channel Partners offer industry leading technology to help organizations of all sizes meet their unique requirements for business continuity, regulatory compli-ance and data recovery. T ogether, weprovide cost-effective storage products and solutions that leverage world renowned Hitachi global R&D resources to deliver performance, availability and scalability — supporting business critical applications and strengthening competitive advantage.Hitachi Data Systems storage manage-ment solutions consist of hardware, software and services that apply best practice planning and configuration with expert onsite installation support to ensure the solution is set up correctly and optimally for the environment, with the least amount of disruption. Hands-on training classes are also available and recommended for all products, on your site or at Hitachi Data Systems training centers.Complementary Software SolutionsHitachi Basic Operating System, Hitachi Device Manager, Hitachi Tuning Manager and Hitachi Storage Services Manager software.Corporate Headquarters 750 Central Expressway, Santa Clara, California 95050-2627 USA Contact Information: + 1 408 970 1000 / info@Asia Pacific and Americas 750 Central Expressway, Santa Clara, California 95050-2627 USA Contact Information: + 1 408 970 1000 / info@Europe Headquarters Sefton Park, Stoke Poges, Buckinghamshire SL2 4HD United Kingdom Contact Information: + 44 (0) 1753 618000 / @Hitachi is a registered trademark of Hitachi, Ltd., and/or its affiliates in the United States and other countries. Hitachi Data Systems is a registered trademark and service mark of Hitachi, Ltd., in the United States and other countries.IBM and AIX are registered trademarks of International Business Machines.Microsoft is a registered trademark of Microsoft Corporation.All other trademarks, service marks and company names are properties of their respective owners.Notice: This document is for informational purposes only, and does not set forth any warranty, express or implied,concerning any equipment or service offered or to be offered by Hitachi Data Systems. This document describes some capabilities that are conditioned on a maintenance contract with Hitachi Data Systems being in effect, and that may be configuration dependent, and features that may not be currently available. Contact your local Hitachi Data Systems sales office for information on feature and product availability.Hitachi Data Systems sells and licenses its products subject to certain terms and conditions, including limited warranties. To see a copy of these terms and conditions prior to purchase or license, please go to /corporate/legal/index.html or call your local sales representative to obtain a printed copy. If you purchase or license the product, you are deemed to have accepted these terms and conditions.© Hitachi Data Systems Corporation 2008. All Rights Reserved. DS-054-G DG May 2008Enable Control of Application-specific Storage Service LevelsMatches path load-balancing algorithm to ■■specific application needs such as round-robin for applications with random I/O characteristicsOptimizes application path reliability ■■and performance, taking into account workloads in the whole systemSimplify Path Administration and Increase Administrator EfficienciesProvides single-console integrated ■■path management for multiple servers, operating systems and storage system configurationsProvides an easy way to check the health ■■of all SAN paths through summary views Provides secure host grouping for creating ■■customized management views within a resource group to suit each operational group’s needsIntegrates reporting of alerts and error ■■information from each hostEnables easy switching to and from alternate ■■paths in complex storage networksFeaturesWide Range of Operating EnvironmentsSupports path failover and I/O load ■■balancing for IBM ® AIX ®, Microsoft ® Windows, HP-UX, Sun Solaris and Linux operating systemsSupports Fibre Channel and iSCSI ■■connectionsSupports most major server clustering ■■productsSupports standard volume manage- ■■ment toolsSupports popular host bus adapters (HBAs)■■Complements Microsoft Windows MPIO ■■environments through added automation, including failback and path load balancingSupports all Hitachi storage systems ■■ as well as storage from other vendorsPath ManagementFor each multipathed instance, lists the path ■■information for all paths or for each host, HBA port, storage system and storage portAggregated path views corresponding to ■■path status (online or offline) provide an easy way to check the health of the entire multipathing environmentAdjusts load balancing for individual LUNs ■■Data access on all Hitachi storage systems ■■in both direct attached storage (DAS) and storage area network (SAN) environments, enabled with path failover and I/O balanc-ing over multiple HBA cardsFailover and failback in either manual ■■or automatic modesDynamic LUN addition and deletion ■■without a server reboot (not available on all platforms)Multiple active paths for bandwidth ■■control at the HBA port levelSystem Requirements and Support Matrix/go/storage-command-suite-requirements。
