Hp Hitachi Dynamic Link Manager Software Manuel d'utilisateur télécharger pdf (Page 17)

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Contents

Preface i

Intended Readers ........................................................................................................i

Organization of This Manual .....................................................................................i

Related Publications..................................................................................................ii

Conventions: Abbreviations.................................................................................... iii

Conventions: Diagrams ............................................................................................ix

Conventions: Fonts and Symbols.............................................................................ix

Conventions: KB, MB, GB, and TB ........................................................................xi

1. Overview of HDLM 1

1.1 What is HDLM? .........................................................................................................2

1.2 HDLM Features..........................................................................................................4

2. HDLM Functions 5

2.1 Devices Managed by HDLM......................................................................................6

2.2 System Configuration.................................................................................................7

2.2.1 System Configuration Using an FC-SAN .......................................................7

2.2.2 System Configuration Using an IP-SAN ........................................................9

2.3 LU Configuration .....................................................................................................12

2.4 Program Configuration.............................................................................................14

2.5 Position of the HDLM Driver and HDLM Device...................................................16

2.6 Logical Device Files for HDLM Devices.................................................................17

2.7 Distributing a Load Using Load Balancing..............................................................19

2.7.1 Paths To Which Load Balancing Is Applied .................................................21

2.7.2 Load Balancing Algorithms ..........................................................................23

2.8 Performing Failovers and Failbacks Using Path Switching .....................................25

2.8.1 Automatic Path Switching.............................................................................25

2.8.2 Manual Path Switching .................................................................................28

2.8.3 Path Status Transition....................................................................................29

2.9 Monitoring Intermittent Errors (Functionality When Automatic Failback Is Used) 32

2.9.1 Checking Intermittent Errors.........................................................................32

2.9.2 Setting Up Intermittent Error Monitoring .....................................................32

2.9.3 Intermittent Error Monitoring Actions..........................................................33

2.9.4 When a User Changes the Intermittent Error Information...........................35

2.10 Detecting Errors by Using Path Health Checking..................................................38

2.11 Error Management..................................................................................................39

2.11.1 Types of Collected Logs..............................................................................41

2.11.2 Filtering of Error Information .....................................................................42

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Hp Hitachi Dynamic Link Manager Software Manuel d'utilisateur Page 17