HP Hitachi Dynamic Link Manager Software - Manual (Page 32)

Figure 2-3 LU Configuration Recognized by the Host After HDLM
Installation
The following table lists and describes the components recognized by the
host.
Table 2-3 LU Components
Components Description
HDev A Dev (partition) in an LU that the host recognizes via the
HDLM driver. It is called a host device. One host device is
recognized for one Dev in the storage system.
HLU An LU that the host recognizes via the HDLM driver. It is
called a host LU. Regardless of how many paths exist, only
one host LU is recognized for each LU in the storage system.
Program Configuration
HDLM is actually a combination of several programs. Because each program
corresponds to a specific HDLM operation, it is important to understand the
name and purpose of each program, along with how they are all interrelated.
The following figure shows the configuration of the HDLM programs.
2-8
HDLM Functions
Hitachi Dynamic Link Manager User Guide for Linux ®