Red Hat Cluster Suite, Manual

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Chapter 2. Hardware Installation and Operating System Configuration 15
Hardware Quantity Description Required
Cluster
nodes
16
(maximum
supported)
Each node must provide enough PCI slots,
network slots, and storage adapters for the
cluster hardware configuration. Because
attached storage devices must have the
same device special file on each node, it is
recommended that the nodes have
symmetric I/O subsystems. It is also
recommended that the processor speed and
amount of system memory be adequate for
the processes run on the cluster nodes.
Refer to Section 2.3.1 Installing the Basic
Cluster Hardware for more information.
Yes
Table 2-4. Cluster Node Hardware
Table 2-5 includes several different types of fence devices.
A single cluster requires only one type of power switch.
Type Description Models
Network-attached
power switches.
Remote (LAN, Internet)
fencing using RJ45 Ethernet
connections and remote
terminal access to the device.
APC MasterSwitch
92xx/96xx; WTI
NPS-115/NPS-230, IPS-15,
IPS-800/IPS-800-CE and
TPS-2
Fabric Switches. Fence control interface
integrated in several models of
fabric switches used for
Storage Area Networks
(SANs). Used as a way to
fence a failed node from
accessing shared data.
Brocade Silkworm 2
x
00,
McData Sphereon, Vixel 9200
Integrated Power
Management
Interfaces
Remote power management
features in various brands of
server systems; can be used as
a fencing agent in cluster
systems
HP Integrated Lights-out
(iLO), IBM BladeCenter with
firmware dated 7-22-04 or
later
Table 2-5. Fence Devices
Table 2-7 through Table 2-8 show a variety of hardware components for an administrator
to choose from. An individual cluster does not require all of the components listed in these
tables.