Red Hat Cluster Suite: Configuring and Managing a Cluster
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# Index

## Symbols

/etc/hosts
  editing, Editing the /etc/hosts File
/etc/sysconfig/ha/lvs.cf file, /etc/sysconfig/ha/lvs.cf

## A

activating your subscription, Activate Your Subscription
active router
  see LVS clustering
Apache HTTP Server
  httpd.conf, Installing and Configuring the Apache HTTP Server
  setting up service, Setting Up Apache HTTP Server
availability and data integrity table, Minimum Hardware Requirements

## B

backup router
  see LVS clustering

## C

channel bonding
  see Ethernet bonding
chkconfig, Configuring Services on the LVS Routers
cluster
  see cluster types
  administration, Cluster Administration
  diagnosing and correcting problems, Diagnosing and Correcting Problems in a Cluster
  disabling the cluster software, Disabling the Cluster Software
  displaying status, Displaying Cluster and Service Status
  name, changing, Changing the Cluster Name
  starting, Starting the Cluster Software
cluster administration, Cluster Administration
  backing up the cluster database, Backing Up and Restoring the Cluster Database
  changing the cluster name, Changing the Cluster Name
  diagnosing and correcting problems in a cluster, Diagnosing and Correcting Problems in a Cluster
  disabling the cluster software, Disabling the Cluster Software
  displaying cluster and service status, Displaying Cluster and Service Status
  modifying the cluster configuration, Modifying the Cluster Configuration
  restoring the cluster database, Backing Up and Restoring the Cluster Database
  starting and stopping the cluster software, Starting and Stopping the Cluster Software
  updating the cluster software, Updating the Cluster Software
cluster configuration
  minimum
    example, Minimum Hardware Requirements
  modifying, Modifying the Cluster Configuration
Cluster Configuration Tool
  accessing, Overview of the Cluster Configuration Tool
cluster database
  backing up, Backing Up and Restoring the Cluster Database
  restoring, Backing Up and Restoring the Cluster Database
cluster hardware
  connecting, Setting Up and Connecting the Cluster Hardware
  fence devices, Choosing the Type of Fence Device
  setting up, Setting Up and Connecting the Cluster Hardware
cluster hardware tables, Cluster Hardware Components
cluster node hardware table, Cluster Hardware Components
cluster service
  displaying status, Displaying Cluster and Service Status
cluster service managers
  configuration, Adding a Cluster Service to the Cluster, Propagating The Configuration File: New Cluster
cluster services, Adding a Cluster Service to the Cluster
  see also adding to the cluster configuration
  Apache HTTP Server, setting up, Setting Up Apache HTTP Server
  httpd.conf, Installing and Configuring the Apache HTTP Server
cluster software
  disabling, Disabling the Cluster Software
  installation and configuration, Installing and Configuring Red Hat Cluster Suite Software
    automatic installation of RPMs, Installing the Red Hat Cluster Suite Packages, Automatic RPM Installation
    custom installation of RPMs, Custom RPM Installation
    custom installation using the rpm utility, Installing Packages with the rpm Utility
    determining RPMs to install, Determining RPMs To Install
    steps for installing and initializing, Installing the Red Hat Cluster Suite Packages, Selectively Installing Red Hat Cluster Suite Packages
  starting and stopping, Starting and Stopping the Cluster Software
  steps for installing and initializing, Installing the Red Hat Cluster Suite Packages, Selectively Installing Red Hat Cluster Suite Packages
  updating, Updating the Cluster Software
cluster software installation and configuration, Installing and Configuring Red Hat Cluster Suite Software
cluster types
  compute-clustering
    Beowulf, Technology Overview
    definition of, Technology Overview
  high-availability clustering, Technology Overview
    see also Red Hat Cluster Manager
    definition of, Technology Overview
  load-balance clustering, Technology Overview
    see also LVS clustering
    definition of, Technology Overview
  overview of, Technology Overview
components
  of LVS cluster, Components of an LVS Cluster
compute-clustering
  see cluster types
configuration
  Red Hat Enterprise Linux, Installing and Configuring Red Hat Enterprise Linux
configuration file
  propagation of, Propagating The Configuration File: New Cluster
console startup messages
  displaying, Displaying Console Startup Messages
console switch, Minimum Hardware Requirements
  setting up, Setting Up a Console Switch
console switch hardware table, Cluster Hardware Components
conventions
  document, Document Conventions

## D

displaying console startup messages, Displaying Console Startup Messages
displaying devices configured in the kernel, Displaying Devices Configured in the Kernel

## E

Ethernet channel bonding
  configuring, Configuring Ethernet Channel Bonding
examples
  minimum cluster configuration, Minimum Hardware Requirements
  no single point of failure configuration, Minimum Hardware Requirements
ext3, Creating File Systems

## F

feedback, Send in Your Feedback
fence device
  configuring, Configuring a Fence Device
fence devices, Choosing the Type of Fence Device
  network-attached, Choosing the Type of Fence Device
  serial-attached, Choosing the Type of Fence Device
  watchdog timers, Choosing the Type of Fence Device
    hardware-based, Choosing the Type of Fence Device
    software-based, Choosing the Type of Fence Device
file systems
  creating, Creating File Systems
FTP, clustering, FTP In an LVS Cluster
  see also LVS clustering

## G

GFS software subsystem components table, Red Hat Cluster Manager Subsystem Overview

## H

hardware
  installing basic cluster hardware, Installing the Basic Cluster Hardware
hardware configuration
  availability considerations, Choosing a Hardware Configuration
  choosing a configuration, Choosing a Hardware Configuration
  cost restrictions, Choosing a Hardware Configuration
  data integrity under all failure conditions, Choosing a Hardware Configuration
  minimum, Minimum Hardware Requirements
  optional hardware, Minimum Hardware Requirements
  performance considerations, Choosing a Hardware Configuration
hardware information, supplementary, Supplementary Hardware Information
hardware installation
  operating system configuration, Hardware Installation and Operating System Configuration
high-availability clustering
  see cluster types
how to use this manual, How To Use This Manual
HTTP services
  Apache HTTP Server
    httpd.conf, Installing and Configuring the Apache HTTP Server
    setting up, Setting Up Apache HTTP Server

## I

installation
  Red Hat Enterprise Linux, Installing and Configuring Red Hat Enterprise Linux
installing basic cluster hardware, Installing the Basic Cluster Hardware
installing the basic cluster hardware, Installing the Basic Cluster Hardware
introduction, Introduction
  how to use this manual, How To Use This Manual
  other Red Hat Enterprise Linux manuals, Introduction
iptables, Configuring Services on the LVS Routers
ipvsadm program, ipvsadm

## J

job scheduling, LVS, LVS Scheduling Overview

## K

kernel
  decreasing kernel boot timeout limit, Decreasing the Kernel Boot Timeout Limit
  displaying configured devices, Displaying Devices Configured in the Kernel
Kernel Boot Timeout Limit
  decreasing, Decreasing the Kernel Boot Timeout Limit
KVM (keyboard, video, mouse) switch, Minimum Hardware Requirements

## L

least connections
  see job scheduling, LVS
Linux Virtual Server
  see LVS clustering
load-balance clustering
  see cluster types
low voltage differential (LVD), SCSI Bus Length
LVS
  /etc/sysconfig/ha/lvs.cf file, /etc/sysconfig/ha/lvs.cf
  components of, Components of an LVS Cluster
  daemon, lvs
  date replication, real servers, Data Replication and Data Sharing Between Real Servers
  definition of, Technology Overview
  initial configuration, Initial LVS Configuration
  ipvsadm program, ipvsadm
  job scheduling, LVS Scheduling Overview
  lvs daemon, lvs
  LVS routers
    configuring services, Initial LVS Configuration
    necessary services, Configuring Services on the LVS Routers
    primary node, Initial LVS Configuration
  multi-port services, Multi-port Services and LVS Clustering
    FTP, FTP In an LVS Cluster
  nanny daemon, nanny
  NAT routing
    enabling, Enabling NAT Routing on the LVS Routers
    requirements, hardware, The NAT LVS Cluster
    requirements, network, The NAT LVS Cluster
    requirements, software, The NAT LVS Cluster
  overview of, Load-Balancing Clusters Using Linux Virtual Servers, Linux Virtual Server Overview
  packet forwarding, Initial LVS Configuration
  Piranha Configuration Tool, Piranha Configuration Tool
  pulse daemon, pulse
  real servers, Load-Balancing Clusters Using Linux Virtual Servers
  routing methods
    NAT, Routing Methods
  routing prerequisites, Configuring Network Interfaces for a NAT LVS Cluster
  scheduling, job, LVS Scheduling Overview
  send_arp program, send_arp
  shared data, Data Replication and Data Sharing Between Real Servers
  starting the cluster, Configuring the LVS Routers with Piranha Configuration Tool
  synchronizing configuration files, Configuring the LVS Routers with Piranha Configuration Tool
  three tiered
    Red Hat Cluster Manager, A Three Tiered LVS Configuration
lvs daemon, lvs

## M

member status for Cluster Status Tool table, Displaying Cluster and Service Status
member status forclustat table, Displaying Cluster and Service Status
minimum cluster configuration example, Minimum Hardware Requirements
minimum hardware configuration, Minimum Hardware Requirements
mkfs, Creating File Systems
multi-port services, clustering, Multi-port Services and LVS Clustering
  see also LVS clustering

## N

nanny daemon, nanny
NAT
  enabling, Enabling NAT Routing on the LVS Routers
  routing methods, LVS, Routing Methods
network address translation
  see NAT
network hardware table, Cluster Hardware Components
network hub, Minimum Hardware Requirements
network switch, Minimum Hardware Requirements
no single point of failure configuration, Minimum Hardware Requirements
nodes
  setting up, Setting Up the Nodes

## O

operating system configuration
  hardware installation, Hardware Installation and Operating System Configuration

## P

packet forwarding, Initial LVS Configuration
  see also LVS clustering
parted
  creating disk partitions, Partitioning Disks
partitioning disks, Partitioning Disks
Piranha Configuration Tool, Piranha Configuration Tool
  CONTROL/MONITORING, Configuring the LVS Routers with Piranha Configuration Tool
  EDIT MONITORING SCRIPTS Subsection, VIRTUAL SERVERS
  GLOBAL SETTINGS, Configuring the LVS Routers with Piranha Configuration Tool
  limiting access to, Initial LVS Configuration, Limiting Access To the Piranha Configuration Tool
  login panel, Configuring the LVS Routers with Piranha Configuration Tool
  necessary software, Configuring the LVS Routers with Piranha Configuration Tool
  overview of, Configuring the LVS Routers with Piranha Configuration Tool
  REAL SERVER subsection, VIRTUAL SERVERS
  REDUNDANCY, Configuring the LVS Routers with Piranha Configuration Tool
  setting a password, Initial LVS Configuration
  VIRTUAL SERVER subsection
    Firewall Mark, The VIRTUAL SERVER Subsection
    Persistence, The VIRTUAL SERVER Subsection
    Scheduling, The VIRTUAL SERVER Subsection
    Virtual IP Address, The VIRTUAL SERVER Subsection
  VIRTUAL SERVER subsection, VIRTUAL SERVERS
  VIRTUAL SERVERS, Configuring the LVS Routers with Piranha Configuration Tool
piranha-gui service, Configuring Services on the LVS Routers
piranha-passwd, Initial LVS Configuration
power controller connection, configuring, Configuring Fence Devices
power switch, Configuring Fence Devices
  see also power controller
pulse daemon, pulse
pulse service, Configuring Services on the LVS Routers

## R

real servers
  see LVS clustering
  configuring services, Initial LVS Configuration
Red Hat Cluster Manager, Technology Overview
  subsystem, Red Hat Cluster Manager Subsystem Overview
Red Hat Cluster Suite, Installing the Red Hat Cluster Suite Packages, Selectively Installing Red Hat Cluster Suite Packages
  custom installation of software
    with the rpm utility, Installing Packages with the rpm Utility
  installation, Installing the Red Hat Cluster Suite Packages, Selectively Installing Red Hat Cluster Suite Packages
    determining RPMs to install, Determining RPMs To Install
  RPM installation
    automatic, Installing the Red Hat Cluster Suite Packages, Automatic RPM Installation
    custom, Custom RPM Installation
Red Hat Enterprise Linux, Introduction to Linux Virtual Server
  installation and configuration, Installing and Configuring Red Hat Enterprise Linux
  overview of, Technology Overview
registering your subscription, Activate Your Subscription
round robin
  see job scheduling, LVS
routing
  prerequisites for LVS, Configuring Network Interfaces for a NAT LVS Cluster
RPMs, Red Hat Cluster Suite DLM
  selection criteria of, Determining RPMs To Install
RPMs, Red Hat Cluster Suite, GULM
  selection criteria of, Determining RPMs To Install
RPMs, Red Hat GFS
  selection criteria of, Determining RPMs To Install

## S

scheduling, job (LVS), LVS Scheduling Overview
SCSI bus length, SCSI Bus Length
SCSI bus termination, SCSI Bus Termination
SCSI configuration requirements, SCSI Configuration Requirements
SCSI identification numbers, SCSI Identification Numbers
SCSI storage
  requirements, SCSI Storage Requirements
security
  Piranha Configuration Tool, Limiting Access To the Piranha Configuration Tool
send_arp program, send_arp
service status table, Displaying Cluster and Service Status
shared disk storage hardware table, Cluster Hardware Components
shared storage, Shared Storage considerations
  considerations, Shared Storage considerations
  setting up, Shared Storage considerations
single-initiator fibre channel interconnect
  setting up, Setting Up a Fibre Channel Interconnect
sshd service, Configuring Services on the LVS Routers
starting the cluster software, Starting the Cluster Software
subscription registration, Activate Your Subscription
synchronizing configuration files, Configuring the LVS Routers with Piranha Configuration Tool
System V init, Starting and Stopping the Cluster Software

## T

tables
  availability and data integrity, Minimum Hardware Requirements
  cluster hardware, Cluster Hardware Components
  cluster node hardware, Cluster Hardware Components
  console switch hardware, Cluster Hardware Components
  GFS software subsystem components, Red Hat Cluster Manager Subsystem Overview
  installing the basic cluster hardware, Installing the Basic Cluster Hardware
  member status for Cluster Status Tool, Displaying Cluster and Service Status
  member status forclustat, Displaying Cluster and Service Status
  minimum cluster configuration components, Minimum Hardware Requirements
  network hardware, Cluster Hardware Components
  no single point of failure configuration, Minimum Hardware Requirements
  power controller connection, configuring, Configuring Fence Devices
  Red Hat Cluster Suite DLM RPM selection criteria, Determining RPMs To Install
  Red Hat Cluster Suite GULM RPM selection criteria, Determining RPMs To Install
  Red Hat GFS RPM selection criteria, Determining RPMs To Install
  service status, Displaying Cluster and Service Status
  shared disk storage hardware, Cluster Hardware Components
  UPS system hardware, Cluster Hardware Components
terminal server, Minimum Hardware Requirements
troubleshooting
  diagnosing and correcting problems in a cluster, Diagnosing and Correcting Problems in a Cluster

## U

UPS system hardware table, Cluster Hardware Components
UPS systems
  configuring, Configuring UPS Systems

## W

watchdog timers
  hardware-based, Choosing the Type of Fence Device
  software-based, Choosing the Type of Fence Device
weighted least connections
  see job scheduling, LVS
weighted round robin
  see job scheduling, LVS

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