Compaq HSG80 - StorageWorks RAID Array Controller Especificações descarregar pdf (Página 46)

100

101

2–2

Controller and Host Concepts

Terminology

When configuring the subsystem you will encounter the following terms and concepts

that you must understand:

■ Controller A and controller B

■ This controller and other controller

■ Unresponsive and surviving controller

Controller A and Controller B

Controllers and cache modules are designated either A or B depending on their

location within the storage enclosure as shown in.

Figure 2–1. Controller A and Controller B Locations

This Controller and Other Controller

Some CLI commands use the terms “this” and “other” to identify one controller or the

other in a dual-redundant pair. These designations are defined as follows:

■ This controller—the controller that you are currently connected, regardless of

whether it is controller A or controller B. It is the controller through which the

CLI commands are being entered. The maintenance terminal is connected to the

maintenance port of “this” controller.

Controller A

Controller B

Cache module A Cache module B

EMU

PVA

CXO6283A

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