Installation guide

26 Chapter 2:Hardware Installation and Operating System Configuration
Table 2–8 Point-To-Point Serial Heartbeat Channel Hardware Table
Hardware Quantity Description Required
Serial card Two for each
serial channel
Each serial heartbeat channel requires
a serial port on both cluster systems.
To expand your serial port capacity,
you can use multi-port serial PCI cards.
Recommended multi-port cards include
the following:
Vision Systems VScom 200H PCI card,
which provides two serial ports, is
available from http://www.vscom.de
Cyclades-4YoPCI+ card, which provides
four serial ports, is available from
http://www.cyclades.com.
Note that since configuration of serial
heartbeat channels is optional, it is not
required to invest in additional hardware
specifically for this purpose. Should
future support be provided for more
than 2 cluster members, serial heartbeat
channel support may be deprecated.
No
Null modem
cable
One for each
channel
A null modem cable connects a serial port on
one cluster system to a corresponding serial port
on the other cluster system, creating a serial
heartbeat channel.
Only for serial
heartbeat
channel
Table 2–9 Console Switch Hardware Table
Hardware Quantity Description Required
Terminal
server
One
A terminal server enables you to manage
many systems from one remote location.
No
KVM
One A KVM enables multiple systems to share one
keyboard, monitor, and mouse. Cables for
connecting systems to the switch depend on the
type of KVM.
No