Compaq AA-RHGWC-TE manual Zoning and Cascaded Switches

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

Member

System

1

Memory Channel

KGPSA

KGPSA

Memory Channel

Interface

Member

System

2

Memory Channel

KGPSA

KGPSA

Fibre Channel Switch

Fibre Channel Switch

			HSG 80
Port	1		Controller A	Port	2
			HSG 80
Port 1			Controller B	Port	2
		RA8000/ESA12000

ZK-1765U-AI

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.

6–14Using Fibre Channel Storage