Hitachi MK-97DF8018-00 User Manual

iProduct Version Document Organization Getting Help Table of Contents FASTFIND LINKSMK-97DF8018-00Hitachi

x ContentsHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideLifespan Based on Backup Requirements . . . . . . . . . . . . . . . . . .

Contents xiHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide7 Monitoring and Maintenance . . . . . . . . . . . . . . . . . . . . . .

xii ContentsHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

SnapShot Overview 1–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide1SnapShot OverviewSnapshot creates virtual copies of data volum

1–2 SnapShot OverviewHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideCopy-on-Write SnapShot SoftwareHitachi’s Copy-on-Write Snapshot

SnapShot Overview 1–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•Figure 1-1: SnapShot functional componentsThe following secti

1–4 SnapShot OverviewHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideVolume Pairs—P-VOLs and V-VOLs A volume pair is a relationship

SnapShot Overview 1–5Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•Figure 1-2: V-VOL Maintains SnapShot Data

1–6 SnapShot OverviewHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideData PoolsAfter a snapshot, the V-VOL maintains a static copy o

2Planning and Design 2–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuidePlanning and DesignA backup insures that a volume with bad o

iiHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide© 2007 Hitachi Data Systems Corporation, ALL RIGHTS RESERVEDNotice: No part of thi

2–2 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideThe Plan and Design Workflow The SnapShot planning effort con

Planning and Design 2–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideIdeally, a business desires no data loss. In the real world,

2–4 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide• If the snapshot is to be used as a disk-based backup availa

Planning and Design 2–5Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideEstablishing Data Pool SizeThe data pool holds data from the

2–6 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide2. At the end of the period, convert the data to MB/second, i

Planning and Design 2–7Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guideb. Press Enter.This instructs the tool to calculate the avera

2–8 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide5. Calculate the base data pool size for your primary/virtual

Planning and Design 2–9Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide3. Multiply the base data pool size by the number of V-VOLs.

2–10 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideTotal PVOL size = 173.25 GBTotal data pool size = 163.2 GBTh

Planning and Design 2–11Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guideb. Right-click the disk whose HLUN you want to know, then se

Preface iiiHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuidePrefaceThis document provides instructions on assessing your snapshot req

2–12 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideLinux and LVM ConfigurationA host cannot recognize both a P-

Planning and Design 2–13Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideIf any one of the dynamic disks is left unhidden, a Missing

2–14 Planning and DesignHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide• Copy dynamic disk volumes that consist of two or more LUs

3Requirements 3–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideRequirementsThis chapter describes minimum operational requirements

3–2 RequirementsHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideSystem RequirementsTable 3-1 shows the minimum requirements for Snap

4Enabling and Disabling SnapShot 4–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideEnabling and Disabling SnapShotSnapShot is bundl

4–2 Enabling and Disabling SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideEnabling/Disabling SnapShotTo enable/disable Snap

Enabling and Disabling SnapShot 4–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•7. When ready, click the Yes, I have read ... ch

4–4 Enabling and Disabling SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

5Configuring SnapShot 5–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideConfiguring SnapShotThis chapter describes the steps for se

iv PrefaceHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideDocument Revision LevelThis section provides a history of the revision cha

5–2 Configuring SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideConfiguration WorkflowThe following configuration tasks must

Configuring SnapShot 5–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideSet Up the Virtual Volume (V-VOL) (manual method)When the Ba

5–4 Configuring SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

6Using SnapShot 6–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideUsing SnapShotThis chapter describes the SnapShot data replicatio

6–2 Using SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideSnapShot Replication WorkflowFollowing the initial creation of the

Using SnapShot 6–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide4. Existing volumes in the array are listed in the Primary Volume

6–4 Using SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide10.In the Group Assignment area, you have the option of assigning

Using SnapShot 6–5Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide2. From the Replication tree, select the Local Replication icon. T

6–6 Using SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideUse the V-VOL for Tape Backup, Testing, Reports, Etc.Your snapshot

Using SnapShot 6–7Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideEdit Pairs, Data PoolYou can edit certain information concerning a

Preface vHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideDocument OrganizationThe following table provides an overview of the conten

6–8 Using SnapShotHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide2. Select the SnapShot Logical Units icon in the tree view. 3. In

7Monitoring and Maintenance 7–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideMonitoring and MaintenanceYour business depends on th

7–2 Monitoring and MaintenanceHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideMonitoring SnapShot The SnapShot data pool must have s

Monitoring and Maintenance 7–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideMonitoring Data Pool UsageThe data pools should be mon

7–4 Monitoring and MaintenanceHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

8Troubleshooting 8–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideTroubleshootingTwo types of problem can be experienced with a Sn

8–2 TroubleshootingHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuidePair FailureA pair failure can have two causes:• A hardware failu

Troubleshooting 8–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideData Pool Capacity ExceededWhen your data pool capacity is exceed

8–4 TroubleshootingHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

AOperations Using CLI A–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideOperations Using CLI•This appendix describes Storage Naviga

vi PrefaceHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideDocument ConventionsThe following table describes the typographic conventi

A–2 Operations Using CLIHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideEnabling and Disabling SnapShotSnapShot is bundled with the

Operations Using CLI A–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideSnapshot Enable/Disable is complete.Operations for SnapShot

A–4 Operations Using CLIHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide3. Execute the aupool command to verify that the Data Pool h

Operations Using CLI A–5Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide3. To delete an existing SnapShot logical unit, refer to the

A–6 Operations Using CLIHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideUpdating SnapShot Logical UnitTo update the V-VOL: 1. From t

Operations Using CLI A–7Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•3. Execute aureplicationlocal to restore the pair. Refer to

A–8 Operations Using CLIHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideChanging Pair InformationYou can change the pair name, group

Operations Using CLI A–9Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideSample Back Up Script for WindowsThis section provides sampl

A–10 Operations Using CLIHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

BSnapShot Specifications B–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideSnapShot SpecificationsThis appendix provides external s

Preface viiHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideGetting HelpIf you have questions after reading this guide, contact an Hi

B–2 SnapShot SpecificationsHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideGeneral SpecificationsTable B-1 lists external specificat

SnapShot Specifications B–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideReduction of data pool capacityPossible only when all the

B–4 SnapShot SpecificationsHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

Glossary–1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZGlossaryThis glossary provides definition

Glossary–2Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZAarrayA set of hard disks mounted in a si

Glossary–3Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZCLI See command line interface.cluster A

Glossary–4Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZconfiguration definition fileThe configur

Glossary–5Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZDdata poolOne or more disk volumes design

Glossary–6Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZdual copyThe process of simultaneously up

Glossary–7Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZfibre channelA gigabit-speed network tech

viii PrefaceHitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

Glossary–8Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZiSCSIInternet-Small Computer Systems Inte

Glossary–9Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZMmetadataIn sophisticated data systems, t

Glossary–10Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZpaired volumeTwo volumes that are paired

Glossary–11Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZRRAIDRedundant Array of Independent Disk

Glossary–12Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZSSASSerial Attached SCSI, an evolution o

Glossary–13Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZS-VOL determinationIndependent of update

Glossary–14Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide•ABCDEF GH I JKLMNOP Q RSTU VWXYZwrite order guaranteeEnsures that data i

Index-1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideIndexAassessing business needs 2-2assigning pairs to a consistency group 6-

Index-2Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideOoverview 1-1Ppair statusdefinitions 7-2monitoring 7-2pairs, assigning to a

1Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

Contents ixHitachi Simple Modular Storage Copy-on-Write SnapShot User’s GuideTable of ContentsPreface . . . . . . . . . . . . . . . . . . . . . . .

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