Hitachi Virtual Storage Platform Hitachi ShadowImage
Hitachi Virtual Storage PlatformHitachi ShadowImage User GuideDocument OrganizationProduct VersionGetting HelpContentsMK-90RD7024-13
2010 - 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 retrievalsystem for any purpose without the express written permission of Hitachi, Ltd.Hitachi, Ltd., reserves the right to make changes to this document at any time without notice andassumes no responsibility for its use. This document contains the most current information availableat the time of publication. When new or revised information becomes available, this entiredocument 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 mostrecent product announcement for information about feature and product availability, or contactHitachi Data Systems Corporation at https://portal.hds.com.Notice: Hitachi, Ltd., products and services can be ordered only under the terms and conditions ofthe applicable Hitachi Data Systems Corporation agreements. The use of Hitachi, Ltd., products isgoverned by the terms of your agreements with Hitachi Data Systems Corporation.Notice on Export Controls. The technical data and technology inherent in this Document may besubject to U.S. export control laws, including the U.S. Export Administration Act and its associatedregulations, and may be subject to export or import regulations in other countries. Reader agrees tocomply strictly with all such regulations and acknowledges that Reader has the responsibility toobtain licenses to export, re-export, or import the Document and any Compliant Products.Hitachi is a registered trademark of Hitachi, Ltd., in the United States and other countries. HitachiData Systems is a registered trademark and service mark of Hitachi, Ltd., in the United States andother countries.Archivas, Essential NAS Platform, HiCommand, Hi-Track, ShadowImage, Tagmaserve, Tagmasoft,Tagmasolve, Tagmastore, TrueCopy, Universal Star Network, and Universal Storage Platform areregistered trademarks of Hitachi Data Systems Corporation.AIX, AS/400, DB2, Domino, DS6000, DS8000, Enterprise Storage Server, ESCON, FICON,FlashCopy, IBM, Lotus, MVS, OS/390, RS/6000, S/390, System z9, System z10, Tivoli, VM/ESA,z/OS, z9, z10, zSeries, z/VM, and z/VSE are registered trademarks or trademarks of InternationalBusiness Machines Corporation.All other trademarks, service marks, and company names in this document or website areproperties of their respective owners.Microsoft product screen shots are reprinted with permission from Microsoft Corporation.iiHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
ContentsPreface. ixIntended audience. xProduct version.xDocument revision level.xChanges in this revision. xiReferenced documents. xiDocument organization.xiDocument conventions.xiiConvention for storage capacity values.xiiiAccessing product documentation. xivGetting help. xivComments. xiv1 ShadowImage overview. 1-1How ShadowImage works. 1-2Hardware and software components. 1-2Volume pairs (primary volumes and secondary volumes). 1-3Cascaded pairs.1-3Storage Navigator GUI. 1-4Command Control Interface and consistency groups. 1-5Initial and update copy operations. 1-5Initial copy.1-5Update copy.1-62 Requirements and planning. 2-1System requirements. 2-2License capacity requirements. 2-3Planning pair volumes. 2-4Planning number of pairs. 2-4Calculating the number of differential tables and pair tables. 2-6Calculating maximum number of pairs. 2-7Organizing volumes into P-VOLs and S-VOLs. 2-9Planning for performance. 2-9Consistency group pair-split. 2-10Consistency group pair-split for shared volumes.2-11iiiHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
Requirements, restrictions, and recommendations for shared volumes. 2-13Consistency group pair-split and supported pair statuses.2-133 Sharing ShadowImage volumes. 3-1Cache Residency Manager. 3-2Thin Image and Copy-on-Write Snapshot . 3-2Data Retention Utility. 3-4Access attributes and ShadowImage operations.3-4ShadowImage pair statuses and access attribute settings. 3-5Dynamic Provisioning and Dynamic Tiering. 3-6High Availability Manager. 3-6LUN Manager. 3-7Open Volume Management.3-7Resource Partition Manager. 3-8TrueCopy. 3-8Universal Replicator. 3-8Sharing volumes in 3-UR data center configurations.3-9Sharing volumes in a 3-UR DC multi-target configuration. 3-9Sharing volumes in 3-UR DC delta resync (multi-target) configuration. 3-11Sharing volumes in a 3-UR DC cascade configuration. 3-12Sharing volumes in a 3-UR DC delta resync (cascade) configuration. 3-13Sharing volumes in 3-UR/TC data center configurations.3-15Sharing volumes in 3-UR/TC DC multi-target and delta resync configurations.3-15Sharing volumes in a 3-TC/UR DC cascade configuration. 3-17Universal Volume Manager. 3-17Volume Migration.3-184 Performing configuration operations.4-1Configuration workflow . 4-2Setting up primary and secondary volumes.4-2Reserving secondary volumes. 4-2System options that affect performance. 4-3Setting performance options.4-45 Performing pair operations. 5-1Pair operations workflow. 5-2Check pair status. 5-2Pair creation. 5-2Prerequisite information for creating pairs. 5-3On creating L1 and L2 pairs with different topologies. 5-4Creating pairs.5-5Suspending pair creation. 5-9Pair split.5-9Types of split operations. 5-10Prerequisite information for splitting pairs.5-10PSUS, performance, and SOM 459. 5-11Splitting pairs. 5-11Splitting pairs in a consistency group.5-12Pair resynchronization. 5-13ivHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
Types of resync operations.5-13Prerequisite information for resynchronizing. 5-14Resynchronizing pairs.5-15Pair deletion. 5-16Prerequisite information for deleting pairs.5-16Deleting pairs. 5-176 Monitoring and maintaining the system. 6-1Monitoring the system .6-2Monitoring pair activity, status .6-2Pair status definitions. 6-3CCI pair status names. 6-4Status, pair operations permitted . 6-4Status for L1, L2 pairs and operations permitted.6-5Status of unaffected S-VOLs, operations permitted . 6-7Monitoring pair, volume details. 6-7Monitoring synchronous rates.6-8Monitoring consistency groups.6-8Monitoring reserve volumes.6-8Monitoring a pair’s operation history . 6-8Maintaining the system.6-10Removing reserve attribute from a volume. 6-10Pair operations during system, device maintenance.6-107 Troubleshooting.7-1ShadowImage Troubleshooting.7-2Operation and display troubleshooting. 7-2Troubleshooting pinned tracks.7-2Troubleshooting extended copy times. 7-2Troubleshooting with CCI. 7-3Troubleshooting consistency group pair-split.7-12Calling the Hitachi Data Systems customer support.7-13A Interface support for SI operations and options. A-1Operations supported by Storage Navigator, CCI.A-2Consistency group operations supported by Storage Navigator, CCI. A-3B ShadowImage GUI reference.B-1Replications window. B-3Local Replications window. B-4View Pair Properties window. B-11View Pair Synchronous Rate window. B-13View Histories window.B-14Consistency Group Properties window. B-16Create Pairs wizard. B-18Select Pair Configuration window. B-18Select Primary Volumes window.B-20Select Secondary Volumes window.B-22Confirm window. B-27Split Pairs wizard. B-28vHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
Split Pairs window.B-28Confirm window. B-31Resync Pairs wizard. B-32Resync Pairs window.B-32Confirm window. B-35Suspend Pairs window.B-36Delete Pairs window.B-38Edit Mirror Units dialog box.B-39Change Options dialog box. B-39Add Reserve Volumes Wizard.B-40Add Reserve Volumes window. B-40Confirm window. B-42Remove Reserve Volumes window. B-42Edit Local Replica Option wizard.B-43Edit Local Replica Option window.B-43Confirm window. B-45C Configuration operations (secondary window). C-1Configuration workflow. C-2Setting up primary and secondary volumes.C-2Reserving S-VOLs. C-2Reserving a consistency group.C-3Setting performance options.C-4D Pair operations (secondary window).D-1Pair operations workflow.D-2Check pair status.D-2Creating L1 and/or L2 pairs.D-2Splitting pairs, creating and splitting pairs. D-5Splitting pairs in a consistency group. D-8Suspending pair creation.D-9Resynchronizing pairs. D-10Deleting pairs.D-13E Monitoring and maintaining the system (secondary window).E-1Monitoring the system (secondary window). E-2Monitoring pair activity, status (secondary window). E-2Pair status definitions (secondary window).E-2Status, pair operations permitted (secondary window). E-3Reviewing pair, volume details.E-3Reviewing S-VOL path information.E-5Reviewing pair, license information . E-6Reviewing a pair’s operation history . E-8Maintaining the system (secondary window). E-10Removing reserve attribute from a volume . E-10F ShadowImage GUI reference (secondary window). F-1Pair Operation window. F-2Main components . F-3Volume list. F-4viHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
Preview list.F-5Pair Operation command menu.F-6Display Filter dialog box . F-6History window.F-8Option window. F-9GlossaryIndexviiHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
viiiHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
PrefaceThis document provides information for setting up and operating HitachiShadowImage on the Hitachi Virtual Storage Platform (VSP) storagesystem.Please read this document carefully to understand how to use this product,and maintain a copy for reference purposes.This preface includes the following information: Intended audience Product version Document revision level Changes in this revision Referenced documents Document organization Document conventions Convention for storage capacity values Accessing product documentation Getting help CommentsPrefaceHitachi Virtual Storage Platform Hitachi ShadowImage User Guideix
Intended audienceThis document is intended for system administrators, HDS representatives,and authorized service providers who are involved in installing, configuring,and operating the Hitachi Virtual Storage Platform storage system.This document assumes the following: The user has a background in data processing and understands RAIDstorage systems and their basic functions. The user is familiar with the Hitachi Virtual Storage Platform storagesystem and has read the Hitachi Virtual Storage Platform User andReference Guide. The user is familiar with the Storage Navigator software for VSP and hasread the Hitachi Storage Navigator User Guide.Product versionThis document revision applies to Hitachi Virtual Storage Platform microcode70-06-2x or later.Document revision levelRevisionxDateDescriptionMK-90RD7024-00October 2010Initial releaseMK-90RD7024-01December 2010Supersedes and replaces MK-90RD7024-00.MK-90RD7024-02January 2011Supersedes and replaces MK-90RD7024-01.MK-90RD7024-03April 2011Supersedes and replaces MK-90RD7024-02.MK-90RD7024-04August 2011Supersedes and replaces MK-90RD7024-03.MK-90RD7024-05November 2011Supersedes and replaces MK-90RD7024-04.MK-90RD7024-06March 2012Supersedes and replaces MK-90RD7024-05.MK-90RD7024-07June 2012Supersedes and replaces MK-90RD7024-06.MK-90RD7024-08November 2012Supersedes and replaces MK-90RD7024-07.MK-90RD7024-09January 2013Supersedes and replaces MK-90RD7024-08.MK-90RD7024-10July 2013Supersedes and replaces MK-90RD7024-09MK-90RD7024-11April 2014Supersedes and replaces MK-90RD7024-10MK-90RD7024-12September 2014Supersedes and replaces MK-90RD7024-11MK-90RD7024-13March 2016Supersedes and replaces MK-90RD7024-12.PrefaceHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
Changes in this revision Updated System requirements on page 2-2. Updated prerequisites in Pair creation on page 5-2.Referenced documentsHitachi Virtual Storage Platform documentation: Command Control Interface User and Reference Guide, MK-90RD7010 Hitachi Copy-on-Write Snapshot User Guide, MK-90RD7013 Hitachi Compatible FlashCopy V2 User Guide, MK-90RD7017 Hitachi Virtual Storage Platform Performance Guide, MK-90RD7020 Hitachi Virtual Storage Platform Provisioning Guide for Open Systems,MK-90RD7022 Hitachi TrueCopy User Guide, MK-90RD7029 Hitachi Universal Replicator User Guide, MK-90RD7032 Hitachi Thin Image User Guide, MK-90RD7179 Business Continuity Manager User Guide, MK-94RD247Document organizationThe following table provides an overview of the contents and organization ofthis document. Click the chapter title in the left column to go to that chapter.The first page of each chapter provides links to the topics in that chapter.Chapter/AppendixTitleDescriptionChapter 1, ShadowImageoverview on page 1-1Provides an overview of Hitachi ShadowImage.Chapter 2, Requirements andplanning on page 2-1Describes system requirements and recommendationsfor planning a ShadowImage system.Chapter 3, SharingDiscusses requirements, recommendations, andShadowImage volumes on page restrictions for using ShadowImage with other Hitachi3-1software.Chapter 4, Performingconfiguration operations onpage 4-1Provides information and instructions for configuring aShadowImage system.Chapter 5, Performing pairoperations on page 5-1Provides instructions for performing ShadowImage pairoperations.Chapter 6, Monitoring andProvides information and instructions for checkingmaintaining the system on page ShadowImage’s operational status.6-1Chapter 7, Troubleshooting onpage 7-1Provides information and instructions fortroubleshooting ShadowImage.PrefaceHitachi Virtual Storage Platform Hitachi ShadowImage User Guidexi
Chapter/AppendixTitleDescriptionAppendix A, Interface supportfor SI operations and optionson page A-1Lists operations and the user interfaces that supportthem.Appendix B, ShadowImage GUIreference on page B-1Describes the ShadowImage windows and dialog boxesin Storage Navigator.Appendix C, Configurationoperations (secondary window)on page C-1Provides information and instructions for configuring aShadowImage system using the previous StorageNavigator GUI, which is shown in a secondary window.Appendix D, Pair operations(secondary window) on pageD-1Provides information and instructions for performingShadowImage operations using the previous StorageNavigator GUI, which is shown in a secondary window.Appendix E, Monitoring andmaintaining the system(secondary window) on pageE-1Provides information and instructions for checkingShadowImage’s operational status using the previousStorage Navigator GUI, which is shown in a secondarywindow.Appendix F, ShadowImage GUIreference (secondary window)on page F-1Describes the ShadowImage windows and dialog boxesin Storage Navigator as seen in the previous StorageNavigator GUI, which is shown in a secondary window.Document conventionsThis document uses the following typographic conventions:ConventionDescriptionBoldIndicates text on a window, other than the window title,including menus, menu options, buttons, fields, and labels.Example: Click OK.ItalicIndicates a variable, which is a placeholder for actual textprovided by the user or system. Example: copy source-filetarget-fileNote: Angled brackets ( ) are also used to indicate variables.screen/codeIndicates text that is shown on screen or entered by the user.Example: # pairdisplay -g oradb angled bracketsIndicates a variable, which is a placeholder for actual textprovided by the user or system. Example: # pairdisplay -g group Note: Italic font is also used to indicate variables.[ ] square bracketsIndicates optional values. Example: [ a b ] indicates that youcan choose a, b, or nothing.{ } bracesIndicates required or expected values. Example: { a b }indicates that you must choose either a or b. vertical barIndicates that you have a choice between two or more optionsor arguments. Examples:[ a b ] indicates that you can choose a, b, or nothing.xiiPrefaceHitachi Virtual Storage Platform Hitachi ShadowImage User Guide
ConventionDescription{ a b } indicates that you must choose either a or b.UnderlineIndicates the default value. Example: [ a b ]This document uses the following icons to draw attention to information:IconMeaningDescriptionTipProvides helpful information, guidelines, or suggestions forperforming tasks more effectively.NoteCalls attention to important and/or additional information.CautionWarns the user of adverse conditions and/or consequences,such as disruptive operations.WARNINGWarns the user of severe conditions and/or consequences,such as destructive operations.Convention for storage capacity valuesPhysical storage capacity values, such as disk drive capacity, are calculatedbased on the following values:Physical capacity unitValue1 KB1,000 bytes1 MB1,0002 bytes1 GB1,0003 bytes1 TB1,0004 bytes1 PB1,0005 bytes1 EB1,0006 bytesLogical storage capacity values, such as logical device capacity, are calculatedbased on the following values
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