Hitachi Dynamic Link Manager Software Users Guide for AIX (6.6) (T5208-96010, April 2011)

Chapter

2. HDLM Functions

This chapter describes the various functions that are built into HDLM. Before the

function specifications are explained though, this chapter will go into detail about the

HDLM management targets, system configuration, and basic terms that are necessary

to know to effectively operate HDLM. After that, the rest of the chapter focus on

describing all the HDLM functions, including the main ones: load distribution across

paths and path switching.

2.1 Devices Managed by HDLM

2.2 System Configuration

2.3 LU Configuration

2.4 Program Configuration

2.5 Position of the HDLM Driver and hdisk

2.6 Distributing a Load Using Load Balancing

2.7 Performing Failovers and Failbacks Using Path Switching

2.8 Monitoring intermittent errors (functionality when automatic failback is

used)

2.9 Detecting errors by using path health checking

2.10 Error management

2.11 Collecting Audit Log Data

2.12 Integrated HDLM management using Global Link Manager

2.13 Cluster support