Hitachi Dynamic Link Manager Software Users Guide for VMWare

Figure 2-13 Flow of Data When Path Error Information Is Collected
Logs might be collected in layers below HDLM, such as for the SCSI driver.
For more details, see the VMware vSphere documentation.
Types of Collected Logs
HDLM collects information about errors that occurred on ESXi hosts and on a
remote management client.
• Log data for errors that occurred on the ESXi host is output to syslog on
the ESXi host, This log data corresponds to I/O errors and to changes in
path status.
• Log data for errors that occurred on a remote management client is
output as remote management client error log data.
You can use this error information to examine the error status and analyze
the error cause.
The following table shows the error information for an ESXi host.
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HDLM Functions
Hitachi Dynamic Link Manager (for VMware®) User Guide