HP Hitachi Dynamic Link Manager Software - Manual (Page 3)

Contents
Preface..................................................................................................ix
Intended audience.....................................................................................................x
Product version..........................................................................................................x
Release notes............................................................................................................x
Document revision level..............................................................................................x
Document organization...............................................................................................x
Related documents....................................................................................................xi
Document conventions..............................................................................................xi
Conventions for storage capacity values.....................................................................xii
Accessing product documentation.............................................................................xiii
Getting help............................................................................................................xiii
Comments...............................................................................................................xiii
1 Overview of HDLM................................................................................1-1
What is HDLM?.......................................................................................................1-2
HDLM Features.......................................................................................................1-2
2 HDLM Functions...................................................................................2-1
Devices Managed by HDLM......................................................................................2-2
System Configuration..............................................................................................2-2
System Configuration Using an FC-SAN..............................................................2-2
System Configuration Using an IP-SAN...............................................................2-3
LU Configuration.....................................................................................................2-6
Program Configuration............................................................................................2-6
HDLM driver and NMP positions...............................................................................2-8
Distributing a Load Using Load Balancing..................................................................2-8
Paths to Which Load Balancing Is Applied.........................................................2-10
When Using the Hitachi AMS/WMS Series................................................2-10
When Using the Universal Storage Platform V/VM Series, Virtual Storage
Platform Series, Hitachi AMS2000 Series, Hitachi SMS Series, HUS100 Series,
or HUS VM............................................................................................2-11
Load Balancing Algorithms...............................................................................2-12
Performing Failovers and Failbacks Using Path Switching.........................................2-13
Automatic Path Switching................................................................................2-13
Automatic Failovers...............................................................................2-13
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Hitachi Dynamic Link Manager User Guide for VMware ®