Hitachi Dynamic Link Manager Software Users Guide for VMWare

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 focuses on describing all the HDLM functions, including the
main ones: load distribution across paths and path switching.
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Devices Managed by HDLM
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System Configuration
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LU Configuration
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Program Configuration
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HDLM driver and NMP positions
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Distributing a Load Using Load Balancing
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Performing Failovers and Failbacks Using Path Switching
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Monitoring Intermittent Errors
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Detecting Errors by Using Path Health Checking
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Distributing a Load by Using the Dynamic I/O Path Control Function
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Error Management
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Collecting Audit Log Data
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Integrated HDLM management using Global Link Manager
HDLM Functions
2-1
Hitachi Dynamic Link Manager (for VMware®) User Guide