Table Of Contents - Hitachi XP P9500 User Manual

Preface..................................................................................................ix
Intended audience.....................................................................................................x
Product version..........................................................................................................x
Release notes............................................................................................................x
Document revision level..............................................................................................x
Document organization...............................................................................................x
Referenced documents..............................................................................................xi
Document conventions..............................................................................................xi
Convention for storage capacity values......................................................................xiii
Getting help............................................................................................................xiii
Comments..............................................................................................................xiv
1 Overview of HDLM................................................................................1-1
What is HDLM?.......................................................................................................1-2
HDLM Features.......................................................................................................1-3
2 HDLM Functions...................................................................................2-1
Devices Managed by HDLM......................................................................................2-2
System Configuration..............................................................................................2-2
LU Configuration.....................................................................................................2-3
Program Configuration............................................................................................2-4
HDLM driver and NMP positions...............................................................................2-5
Distributing a Load Using Load Balancing..................................................................2-6
Paths to Which Load Balancing Is Applied...........................................................2-8
When Using the Hitachi AMS/WMS Series..................................................2-8
When Using the Universal Storage Platform V/VM, Virtual Storage Platform,
Hitachi AMS2000 Series, or Hitachi SMS....................................................2-9
Load Balancing Algorithms................................................................................2-9
Performing Failovers and Failbacks Using Path Switching.........................................2-11
Automatic Path Switching................................................................................2-11
Automatic Failovers...............................................................................2-11
Automatic Failbacks...............................................................................2-13
Manual Path Switching....................................................................................2-13
Path Status Transition.....................................................................................2-14
The Online Path Statuses.......................................................................2-14
Hitachi Dynamic Link Manager User Guide (for VMware(R))
Contents
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