Red Hat Cluster Suite, Руководство пользователя

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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.
No
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.
No
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 connect the nodes to the