Red Hat CLUSTER SUITE 4.7 DM MULTIPATH Guia de Instalação descarregar pdf (Página 34)

18 Chapter 2. Hardware Installation and Operating System Conﬁguration

Hardware Quantity Description Required

Fibre

Channel

cable

As required

by hardware

conﬁgura-

tion

A Fibre Channel cable connects a host bus

adapter to a storage enclosure port, a Fibre

Channel hub, or a Fibre Channel switch. If

a hub or switch is used, additional cables

are needed to connect the hub or switch to

the storage adapter ports.

Only for

Fibre

Channel

conﬁgura-

tions

Table 2-7. Shared Disk Storage Hardware Table

Hardware Quantity Description Required

UPS system One or more Uninterruptible power supply (UPS)

systems protect against downtime if a

power outage occurs. UPS systems are

highly recommended for cluster operation.

Connect the power cables for the shared

storage enclosure and both power switches

to redundant UPS systems. Note that a

UPS system must be able to provide

voltage for an adequate period of time, and

should be connected to its own power

circuit.

Strongly rec-

ommended

for

availability

Table 2-8. UPS System Hardware Table

Hardware Quantity Description Required

Terminal

server

One A terminal server enables you to manage

many nodes remotely.

KVM switch One A KVM switch enables multiple nodes to

share one keyboard, monitor, and mouse.

Cables for connecting nodes to the switch

depend on the type of KVM switch.

Table 2-9. Console Switch Hardware Table

2.3. Setting Up the Nodes

After identifying the cluster hardware components described in

Section 2.1 Choosing a Hardware Conﬁguration, set up the basic cluster hardware and

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 187 188

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