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HP XP P9500 Storage User Manual

Page 26

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paths. The ID that HDLM assigns to each path (physical path) is called a

AutoPATH_ID. A path is also sometimes called a managed object.

The following figure shows the HDLM system configuration.

Figure 2-1 HDLM System Configuration

The following table lists and describes 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

2-4

HDLM Functions

Hitachi Dynamic Link Manager User Guide for Solaris

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