HP Hitachi Dynamic Link Manager Software - Manual (Page 30)

2. HDLM Functions
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Figure 2-1: HDLM System Configuration
Table 2-1: HDLM System Components lists the HDLM system components.
Table 2-1: HDLM System Components
Components Description
HBA A host bus adapter. This serves as a cable port on the host.
SAN A dedicated network that is used for data transfer between the host and storage systems
CHA A channel adapter
P A port on a CHA. This serves as a cable port on a storage system.
LU A logical unit (a logical volume defined on the storage system). This serves as the target of input
or output operations from the host.
Dev An area (slice or partition) that is created when an LU is divided
Physical path A route that connects a host and an LU
Path A route that connects a host and a Dev