Real Cable HDS-12 Guía de usuario

Product VersionContentsGetting HelpFASTFIND LINKSHitachi Unified Storage VM Block ModuleHardware User GuideMK-92HM7005-04

x PrefaceHitachi Unified Storage VM Block Module Hardware User GuideHitachi Data Systems user manuals use the following icons to draw attention to inf

B–8 System option modesHitachi Unified Storage VM Block Module Hardware User Guide474 Universal ReplicatorUR initial copy performance can be improved

System option modes B–9Hitachi Unified Storage VM Block Module Hardware User Guide491 ShadowImage Mode 491 is used to improve the performance of Shado

B–10 System option modesHitachi Unified Storage VM Block Module Hardware User Guide725 This option determines an action when Not Ready is returned fro

System option modes B–11Hitachi Unified Storage VM Block Module Hardware User Guide491 ShadowImage Mode 491 is used for improving the performance of S

B–12 System option modesHitachi Unified Storage VM Block Module Hardware User Guide676 Audit Log This option is used to set whether an audit log is to

System option modes B–13Hitachi Unified Storage VM Block Module Hardware User Guide696 Open This mode is available to enable or disable the QoS functi

B–14 System option modesHitachi Unified Storage VM Block Module Hardware User Guide704 Open To reduce the chance of MIH, this option can reduce the pr

System option modes B–15Hitachi Unified Storage VM Block Module Hardware User Guide725 Universal Volume ManagerThis option determines an action when N

B–16 System option modesHitachi Unified Storage VM Block Module Hardware User Guide725 Universal Volume Manager(continued)Notes (continued)3. While US

System option modes B–17Hitachi Unified Storage VM Block Module Hardware User Guide733 Volume MigrationThis option enables to suspend Volume Migration

Preface xiHitachi Unified Storage VM Block Module Hardware User GuideAccessing product documentationThe Hitachi Unified Storage VM user documentation

B–18 System option modesHitachi Unified Storage VM Block Module Hardware User Guide734 Dynamic ProvisioningWhen exceeding the pool threshold, the SIM

System option modes B–19Hitachi Unified Storage VM Block Module Hardware User Guide745 Universal Volume ManagerEnables to change the area where the in

B–20 System option modesHitachi Unified Storage VM Block Module Hardware User Guide749 Dynamic ProvisioningDisables the Dynamic Provisioning Rebalance

System option modes B–21Hitachi Unified Storage VM Block Module Hardware User Guide803 Dynamic Provisioning,Data Retention UtilityWhile a DP pool VOL

B–22 System option modesHitachi Unified Storage VM Block Module Hardware User Guide857 OPEN This mode enables or disables to limit the cache allocatio

System option modes B–23Hitachi Unified Storage VM Block Module Hardware User Guide896 Dynamic Provisioning, Dynamic TieringThe mode enables or disabl

B–24 System option modesHitachi Unified Storage VM Block Module Hardware User Guide897 Dynamic TieringBy the combination of SOM897 and 898 setting, th

System option modes B–25Hitachi Unified Storage VM Block Module Hardware User Guide900 Volume MigrationIn combination with the SOM8 99 setting, whethe

B–26 System option modesHitachi Unified Storage VM Block Module Hardware User Guide908 Universal Replicator The mode can change CM capacity allocated

System option modes B–27Hitachi Unified Storage VM Block Module Hardware User Guide917 Dynamic Provisioning, Dynamic TieringThe mode is used to switch

xii PrefaceHitachi Unified Storage VM Block Module Hardware User Guide

B–28 System option modesHitachi Unified Storage VM Block Module Hardware User GuideTable B-2: Mode 269: Storage Navigator OperationsTable B-3: Mode 26

System option modes B–29Hitachi Unified Storage VM Block Module Hardware User GuidePDEV Addition - High speed High speedOperation Target of Operation

B–30 System option modesHitachi Unified Storage VM Block Module Hardware User Guide

Rack information C–1Hitachi Unified Storage VM Block Module Hardware User GuideCRack informationThis appendix provides the specifications for the Hita

C–2 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideAbout the Hitachi Solutions rackHitachi Solutions racks and can be used

Rack information C–3Hitachi Unified Storage VM Block Module Hardware User GuideTable C-1: Hitachi Solutions rack basic specificationsTable C-2: Hitach

C–4 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideAccessories 1 x Accessories (set) delivered separately in a box. The se

Rack information C–5Hitachi Unified Storage VM Block Module Hardware User GuidePower considerationsThe Hitachi rack is wired for 200-240V with four PD

C–6 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideMaximum current load. When connecting devices to the PDUs, do not excee

Rack information C–7Hitachi Unified Storage VM Block Module Hardware User GuideTable C-4: PDU specifications (details)PDU-121132F10(sourced by CTI)12

Introduction 1–1Hitachi Unified Storage VM Block Module Hardware User Guide1IntroductionThis chapter describes the hardware used in The HUS VM storage

C–8 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideTypes of PDU plugsThe following figure shows the PDU plug types that ar

Rack information C–9Hitachi Unified Storage VM Block Module Hardware User GuideFigure C-5: Power jumper cable (250 VAC 10A IEC320-C14) Item Descriptio

C–10 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideFloor load ratingsThe floor load rating must be sufficient to support

Rack information C–11Hitachi Unified Storage VM Block Module Hardware User Guide5. Install the M5 screw at the rear of the cabinet and tighten to the

C–12 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideFigure C-7: Rail AssemblyFigure C-8: Front and side views after instal

Rack information C–13Hitachi Unified Storage VM Block Module Hardware User GuideInstallation and maintenance clearance areaThe following shows the ins

C–14 Rack informationHitachi Unified Storage VM Block Module Hardware User Guide• Do not do anything that creates a potential hazard to people or that

Rack information C–15Hitachi Unified Storage VM Block Module Hardware User Guide• If working near a hazardously energized part, do not work alone. Wor

C–16 Rack informationHitachi Unified Storage VM Block Module Hardware User Guide• Be sure the front anti-tip stabilizing plate is installed before ext

Rack information C–17Hitachi Unified Storage VM Block Module Hardware User Guide• In an enclosed rack with a ventilation fan in the top, excessive hea

1–2 IntroductionHitachi Unified Storage VM Block Module Hardware User Guide hardware componentsThe following sections describe the HUS VM storage syst

C–18 Rack informationHitachi Unified Storage VM Block Module Hardware User GuidePlacing components in the rackIf mounting more than one HUS VM Drive B

Rack information C–19Hitachi Unified Storage VM Block Module Hardware User GuideBlanking panelsIf all the vertical mounting space in a rack is not occ

C–20 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideGrounding requirementsAll powered equipment should be properly grounde

Rack information C–21Hitachi Unified Storage VM Block Module Hardware User GuidePreparing for installationThis section covers preinstallation guidelin

C–22 Rack informationHitachi Unified Storage VM Block Module Hardware User Guide• An appropriate freight elevator must be available for transporting t

Rack information C–23Hitachi Unified Storage VM Block Module Hardware User GuideIf access is available to the top of the leveling foot from the inside

C–24 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideTo stabilize the rack, observe the following guidelines:• Stabilize th

Rack information C–25Hitachi Unified Storage VM Block Module Hardware User GuideInstalling a Hitachi rackThe following sections provides procedures to

C–26 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideThe following procedure describes how to install the side stabilizer p

Rack information C–27Hitachi Unified Storage VM Block Module Hardware User GuideTo reduce the risk of injury to persons or damage to equipment, it is

Introduction 1–3Hitachi Unified Storage VM Block Module Hardware User GuideController chassisThe c 5U high controller chassis contains six types of pl

C–28 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideFigure C-14: Baying kit (also see details A and B)Figure C-15: Baying

Rack information C–29Hitachi Unified Storage VM Block Module Hardware User GuideRear baying instructions1. Remove rear doors to access cabinet frames.

C–30 Rack informationHitachi Unified Storage VM Block Module Hardware User GuideOpening and closing the side panelsThe side panels can be locked and u

Rack information C–31Hitachi Unified Storage VM Block Module Hardware User GuideInstalling equipment in a rackThis section describes how to install eq

C–32 Rack informationHitachi Unified Storage VM Block Module Hardware User Guide4. When the rack is in its final destination, keep the bar bolted to t

Rack information C–33Hitachi Unified Storage VM Block Module Hardware User GuideTo install the stabilizer plate:1. Remove the trim cover plate from bo

C–34 Rack informationHitachi Unified Storage VM Block Module Hardware User Guide4. Reinstall the trim cover plate with the M4 flat head screws you rem

Rack information C–35Hitachi Unified Storage VM Block Module Hardware User Guide• There are high-voltage parts in the equipment. Observe the cautionar

C–36 Rack informationHitachi Unified Storage VM Block Module Hardware User Guide

Regulatory Compliance D–1Hitachi Unified Storage VM Block Module Hardware User GuideDRegulatory ComplianceThis appendix includes a comprehensive set o

1–4 IntroductionHitachi Unified Storage VM Block Module Hardware User GuideController configuration and componentsThe HUS VM controller chassis is ver

D–2 Regulatory ComplianceHitachi Unified Storage VM Block Module Hardware User GuideRegulatory complianceThis equipment has been tested and is certifi

Regulatory Compliance D–3Hitachi Unified Storage VM Block Module Hardware User GuideTable D-2: HUS VM Certifications, by RegionUS FCC NoticeFCC Notice

D–4 Regulatory ComplianceHitachi Unified Storage VM Block Module Hardware User GuideThis equipment has been tested and found to comply with the limits

Regulatory Compliance D–5Hitachi Unified Storage VM Block Module Hardware User GuideNotice of export controlsExport of technical data contained in thi

D–6 Regulatory ComplianceHitachi Unified Storage VM Block Module Hardware User GuideRecyclingElectronic emissions certificatesCopies of the Underwrite

Regulatory Compliance D–7Hitachi Unified Storage VM Block Module Hardware User GuideFigure D-1: UL EMI compliance certificate (1 of 3)

D–8 Regulatory ComplianceHitachi Unified Storage VM Block Module Hardware User GuideFigure D-2: UL EMI compliance certificate (2 of 3)

Regulatory Compliance D–9Hitachi Unified Storage VM Block Module Hardware User GuideFigure D-3: UL IMI compliance certificate (1 of 3)

D–10 Regulatory ComplianceHitachi Unified Storage VM Block Module Hardware User Guide

CAKDEFGHIJLMNOPQRSTUVWXY#BZA B C D F H J K L P R S VGlossary–1Hitachi Unified Storage VM Block Module Hardware User GuideGlossaryThis glossary defines

Introduction 1–5Hitachi Unified Storage VM Block Module Hardware User GuideTable 1-2: Controller chassis componentsFigure 1-3: Controller chassis - fr

CAKDEFGHIJLMNOPQRSTUVWXY#BZA B C D F H J K L P R S VHitachi Unified Storage VM Block Module Hardware User GuideGlossary–2drive boxThe hardware compone

CAKDEFGHIJLMNOPQRSTUVWXY#BZA B C D F H J K L P R S VGlossary–3Hitachi Unified Storage VM Block Module Hardware User Guidelicense keyA specific set of

CAKDEFGHIJLMNOPQRSTUVWXY#BZA B C D F H J K L P R S VHitachi Unified Storage VM Block Module Hardware User GuideGlossary–4PDUpower distribution unitpoo

CAKDEFGHIJLMNOPQRSTUVWXY#BZA B C D F H J K L P R S VGlossary–5Hitachi Unified Storage VM Block Module Hardware User Guideservice processor (SVP)The co

CAKDEFGHIJLMNOPQRSTUVWXY#BZA B C D F H J K L P R S VHitachi Unified Storage VM Block Module Hardware User GuideGlossary–6

Index–1Hitachi Unified Storage VM Block Module Hardware User GuideIndexSymbolsarchitecturesystem2-2back-end director 1-6cache 1-6certificationscomplia

Hitachi Unified Storage VM Block Module Hardware User GuideIndex–2

Hitachi Unified Storage VM Block Module Hardware User Guide

MK-92HM7005-04Hitachi Data SystemsCorporate Headquarters2845 Lafayette StreetSanta Clara, California 95050-2639U.S.A.www.hds.comRegional Contact Infor

1–6 IntroductionHitachi Unified Storage VM Block Module Hardware User GuideFlexible host I/O module installationHost I/O modules can be installed in s

Introduction 1–7Hitachi Unified Storage VM Block Module Hardware User GuideTable 1-3: Host I/O module InstallationDrive boxesThe HUS VM supports four

ii Hitachi Unified Storage VM Block Module Hardware User Guide© 2012 -2013 Hitachi Ltd. All rights reserved.No part of this publication may be reprod

1–8 IntroductionHitachi Unified Storage VM Block Module Hardware User GuideThe illustrations on this page and the next page show the front and rear pa

Introduction 1–9Hitachi Unified Storage VM Block Module Hardware User GuideFigure 1-6: DBL and DBS drive box (rear panel)Item Name Color Description1

1–10 IntroductionHitachi Unified Storage VM Block Module Hardware User GuideFigure 1-7: DBF drive boxItem Description Item DescriptionItemDescription1

Introduction 1–11Hitachi Unified Storage VM Block Module Hardware User GuideFigure 1-8: DBX (dense) drive boxItem Description Item Description Item De

1–12 IntroductionHitachi Unified Storage VM Block Module Hardware User GuideThe rear panel of a DBX high-density drive box includes two redundant powe

Introduction 1–13Hitachi Unified Storage VM Block Module Hardware User GuideCache memoryThe HUS VM can be configured with up to 256 GB of cache memory

1–14 IntroductionHitachi Unified Storage VM Block Module Hardware User GuideCache capacityThe cache capacity is determined by the RAID level, the numb

Introduction 1–15Hitachi Unified Storage VM Block Module Hardware User GuideShared memoryShared Memory, which holds storage system configuration infor

1–16 IntroductionHitachi Unified Storage VM Block Module Hardware User Guide

Hardware architecture 2–1Hitachi Unified Storage VM Block Module Hardware User Guide2Hardware architectureThis chapter briefly describes the Hitachi U

ContentsiiiHitachi Unified Storage VM Block Module Hardware User GuideContentsPreface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Hardware architectureHitachi Unified Storage VM Block Module Hardware User GuideSystem architecture overviewThis section briefly describes the arc

Hardware architecture 2–3Hitachi Unified Storage VM Block Module Hardware User GuideArray groups and RAID levelsThe array group (also called parity gr

2–4 Hardware architectureHitachi Unified Storage VM Block Module Hardware User GuideThe following figure illustrates a sample RAID 1 (2D+2D) layout. a

Hardware architecture 2–5Hitachi Unified Storage VM Block Module Hardware User GuideRAID 5A RAID 5 array group consists of four or eight data drives,

2–6 Hardware architectureHitachi Unified Storage VM Block Module Hardware User GuideItem DescriptionDescription Data is written to multiple disks succ

Hardware architecture 2–7Hitachi Unified Storage VM Block Module Hardware User GuideFigure 2-3: Sample RAID 5 3D + 1P Layout (Data Plus Parity Stripe)

2–8 Hardware architectureHitachi Unified Storage VM Block Module Hardware User GuideRAID 6A RAID 6 array group consists of eight data drives (6D+2P).

Hardware architecture 2–9Hitachi Unified Storage VM Block Module Hardware User Guideparity tracks are mapped to specific physical drive locations with

2–10 Hardware architectureHitachi Unified Storage VM Block Module Hardware User GuideAll data drives and device emulation types are supported for LDEV

Hardware architecture 2–11Hitachi Unified Storage VM Block Module Hardware User Guide• Command tag queuing• Industry-standard failover and logical vol

Hitachi Unified Storage VM Block Module Hardware User GuideivContentsArray groups and RAID levels. . . . . . . . . . . . . . . . . . . . . . . . . . .

2–12 Hardware architectureHitachi Unified Storage VM Block Module Hardware User GuideEach fibre-channel port on the HUS VM provides addressing capabil

Hardware architecture 2–13Hitachi Unified Storage VM Block Module Hardware User GuideFigure 2-6: Storage Navigator and SVP Configuration

2–14 Hardware architectureHitachi Unified Storage VM Block Module Hardware User Guide

Safety requirements 3–1Hitachi Unified Storage VM Block Module Hardware User Guide3Safety requirementsInstall Hitachi equipment in accordance with the

3–2 Safety requirementsHitachi Unified Storage VM Block Module Hardware User GuideGeneral safety guidelinesObserve the following general site guidelin

Safety requirements 3–3Hitachi Unified Storage VM Block Module Hardware User Guide• Do not use ungrounded power cables.• Keep the area clear and dust-

3–4 Safety requirementsHitachi Unified Storage VM Block Module Hardware User GuidePreventing electric shock• Before starting work, note where the emer

Site preparation 4–1Hitachi Unified Storage VM Block Module Hardware User Guide4Site preparationThis chapter provides site and system requirements and

4–2 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideSafety requirementsResponsibilitiesThe responsibilities for site planni

Site preparation 4–3Hitachi Unified Storage VM Block Module Hardware User GuideSite Preparation checklistThe following checklist can help you ensure t

ContentsvHitachi Unified Storage VM Block Module Hardware User Guide5 Power On/Off procedures ...

4–4 Site preparationHitachi Unified Storage VM Block Module Hardware User GuidePreinstallation Checklist Yes NoSafety Requirements See Chapter 3, Safe

Site preparation 4–5Hitachi Unified Storage VM Block Module Hardware User GuideGeneral site requirementsThe customer site must accommodate the deliver

4–6 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideEquipment weightThe floors, elevators, and ramps must be able to suppor

Site preparation 4–7Hitachi Unified Storage VM Block Module Hardware User GuideTable 4-4: Data center requirementsSystem specifications and requiremen

4–8 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideTable 4-5: HUS VM componentsTable 4-6: HUS VM system dimensionsFigure 4

Site preparation 4–9Hitachi Unified Storage VM Block Module Hardware User GuideElectrical specificationsThe following table lists the electric power r

4–10 Site preparationHitachi Unified Storage VM Block Module Hardware User Guide• An insulated grounding conductor that is identical in size and insul

Site preparation 4–11Hitachi Unified Storage VM Block Module Hardware User GuidePower connection diagramsThe following illustrations show the correct

4–12 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideFigure 4-2: PDP Breaker Connections for the control rackCaution: When

Site preparation 4–13Hitachi Unified Storage VM Block Module Hardware User GuideUPS power connectionThe following illustrations show the correct way t

Hitachi Unified Storage VM Block Module Hardware User GuideviContentsComponent weight and location . . . . . . . . . . . . . . . . . . . . . . . . . .

4–14 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideEnvironmental specificationsTable 4-11: HUS VM environmental specifica

Site preparation 4–15Hitachi Unified Storage VM Block Module Hardware User GuideAirflowThe fans in both the control chassis and the drive boxes contai

4–16 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideService clearance, floor cutout, and floor load ratingThis section des

Site preparation 4–17Hitachi Unified Storage VM Block Module Hardware User GuideOperational requirementsThe operational requirements for the HUS VM in

4–18 Site preparationHitachi Unified Storage VM Block Module Hardware User Guide• External data storage If you plan to attach external storage to the

Site preparation 4–19Hitachi Unified Storage VM Block Module Hardware User GuideThis diagram shows the cabling from the controller to the DBX dense dr

4–20 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideFigure 4-7: Block module ENC cabling for DBX drive boxes

Site preparation 4–21Hitachi Unified Storage VM Block Module Hardware User GuideFile moduleThis diagram shows the cabling from the controller to HNAS.

4–22 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideTable 4-14: Dual CHB - Fabric configurationFigure 4-9: File module cab

Site preparation 4–23Hitachi Unified Storage VM Block Module Hardware User GuideTable 4-15: Single CHB - DAS configurationFigure 4-10: File module cab

Preface viiHitachi Unified Storage VM Block Module Hardware User GuidePrefaceThis manual provides instructions and information to use the Hitachi Unif

4–24 Site preparationHitachi Unified Storage VM Block Module Hardware User GuideTable 4-16: Single CHB - DAS configurationFigure 4-11: File module cab

Power On/Off procedures 5–1Hitachi Unified Storage VM Block Module Hardware User Guide5Power On/Off proceduresThis chapter describes the power control

5–2 Power On/Off proceduresHitachi Unified Storage VM Block Module Hardware User GuideSafety and environmental informationPower controls and indicator

Power On/Off procedures 5–3Hitachi Unified Storage VM Block Module Hardware User GuideStandby modeWhen the storage system power cables are plugged int

5–4 Power On/Off proceduresHitachi Unified Storage VM Block Module Hardware User Guide• The storage system consumes significantly less power than it d

Power On/Off procedures 5–5Hitachi Unified Storage VM Block Module Hardware User GuidePower off proceduresPrerequisites:• Ensure that all software-spe

5–6 Power On/Off proceduresHitachi Unified Storage VM Block Module Hardware User GuidePower on procedure after emergency power offTo power up the HUS

Power On/Off procedures 5–7Hitachi Unified Storage VM Block Module Hardware User GuideCache destage batteriesThe environmentally friendly nickel hydri

5–8 Power On/Off proceduresHitachi Unified Storage VM Block Module Hardware User Guide

Troubleshooting 6–1Hitachi Unified Storage VM Block Module Hardware User Guide6TroubleshootingThis chapter provides troubleshooting information for th

viii PrefaceHitachi Unified Storage VM Block Module Hardware User GuideSafety and environmental informationIntended audienceThis document is intended

6–2 TroubleshootingHitachi Unified Storage VM Block Module Hardware User GuideGetting helpIf you have difficulty with any of the procedures included i

Troubleshooting 6–3Hitachi Unified Storage VM Block Module Hardware User GuideSIM display on Storage Navigator enables users to remotely view the SIMs

6–4 TroubleshootingHitachi Unified Storage VM Block Module Hardware User Guide

Specifications A–1Hitachi Unified Storage VM Block Module Hardware User GuideASpecificationsThis appendix provides the mechanical, electrical, and env

A–2 SpecificationsHitachi Unified Storage VM Block Module Hardware User GuideSystem specificationsThe following table lists the system specifications

Specifications A–3Hitachi Unified Storage VM Block Module Hardware User GuideTable A-2: Drive SpecificationsPower requirements(see Table A-4: HUS VM e

A–4 SpecificationsHitachi Unified Storage VM Block Module Hardware User GuideMechanical specificationsThe following table lists the mechanical specifi

Specifications A–5Hitachi Unified Storage VM Block Module Hardware User GuideTable A-4: HUS VM electrical specifications, single phase currentItem Uni

A–6 SpecificationsHitachi Unified Storage VM Block Module Hardware User GuideTable A-5: HUS VM electrical specifications, three phase currentTable A-6

Specifications A–7Hitachi Unified Storage VM Block Module Hardware User GuideTable A-7: PDU plugs, circuit breakers, and receptaclesNotes:1. The numbe

Preface ixHitachi Unified Storage VM Block Module Hardware User Guide• Updated the RAID descriptions for the HUS VM system in Chapter 2, Hardware arch

A–8 SpecificationsHitachi Unified Storage VM Block Module Hardware User GuideEnvironmental specificationsThe following table lists the specifications

Specifications A–9Hitachi Unified Storage VM Block Module Hardware User GuideEarthquakeresistance (m/s2)Up to 2.5 10 --Shock -78.4 m/s2, 15 ms Horizon

A–10 SpecificationsHitachi Unified Storage VM Block Module Hardware User Guide

System option modes B–1Hitachi Unified Storage VM Block Module Hardware User GuideBSystem option modesThis appendix lists and describes the public sys

B–2 System option modesHitachi Unified Storage VM Block Module Hardware User GuideSystem option modesTo provide greater flexibility and enable the HUS

System option modes B–3Hitachi Unified Storage VM Block Module Hardware User Guide22 Public Regarding the correction copy or the drive copy, in case E

B–4 System option modesHitachi Unified Storage VM Block Module Hardware User Guide122 ShadowImage For Split or Resync request from the Mainframe host

System option modes B–5Hitachi Unified Storage VM Block Module Hardware User Guide449 Universal ReplicatorDetecting and monitoring path blockade betwe

B–6 System option modesHitachi Unified Storage VM Block Module Hardware User Guide457 ESM The high speed LDEV format for external volumes is available

System option modes B–7Hitachi Unified Storage VM Block Module Hardware User Guide467 ShadowImage, ,Compatible FlashCopy® V2, Snapshot, Volume Migrati