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4 zoning and cascaded switches – Compaq AA-RHGWB-TE User Manual

Page 123

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Figure 6–7: Multiple-Bus NSPOF Configuration Number 3

KGPSA

Member

System

2

KGPSA

KGPSA

DSGGA

DSGGA

Member

System

1

KGPSA

ZK-1708U-AI

RA8000/

ESA12000

HSG80

HSG80

HSG80

1

1

2

2

A

B

6.4 Zoning and Cascaded Switches

This section provides a brief overview of zoning and cascaded switches.

6.4.1 Zoning

A zone is a logical subset of the Fibre Channel devices connected to the
fabric. Zoning allows partitioning of resources for management and access
control. In some configurations, it may provide for more efficient use of
hardware resources by allowing one switch to serve multiple clusters or even
multiple operating systems.

Figure 6–8 provides an example configuration using zoning. This
configuration consists of two independent zones with each zone containing
an independent cluster.

Using Fibre Channel Storage 6–13