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System requirements 7
System requirements
This section describes the platforms on which the ClusterCATS components run and
their minimum system requirements.
ClusterCATS Server system requirements
You must install the ClusterCATS Server component on each server in your cluster.
Ensure that your server meets the minimum system requirements for your platform.
Windows system requirements for ClusterCATS Server
• Intel Pentium 200 Mhz or greater CPU
• 100 MB of free disk space
• 128 MB of RAM
• Windows NT (with SP 4 or greater), Windows 2000, or Windows .NET Server
• Internet Information Server or greater; Netscape Enterprise Server v3.5.1 or greater
• Administrative privileges on each server
• A unique IP address assigned to each web server
• Correct DNS entries and configurations (see “Configuring DNS servers” on page 34)
Note: ClusterCATS Server does not run on Windows 98 or Windows 95.
Sun Solaris system requirements for ClusterCATS Server
• Sun SPARC workstation
• 100 MB of free disk space
• 128 MB of RAM (more recommended)
• Solaris operating system v2.51 or greater with Patch 103582-18 or higher
• Netscape Enterprise Server v3.5.1 or greater or Apache Web Server v1.3.6 or greater
• Administrative root privileges on each server
• A unique IP address assigned to each web server
• Correct DNS entries and configurations (see “Configuring DNS servers” on page 34)
Linux system requirements for ClusterCATS Server
• Intel Pentium 200 Mhz or greater
• 100 MB of free disk space
• 128 MB of RAM (more recommended)
• Red Hat operating system v6.0 or greater
• Apache Web Server v1.3.6 or greater
• Administrative root privileges on each server
• A unique IP address assigned to each web server
• Correct DNS entries and configurations (see “Configuring DNS servers” on page 34)
- Using ClusterCATS 1
- CONTENTS 3
- C o n t e n t s v 5
- ABOUT THIS BOOK 7
- Developer resources 8
- Viewing online documentation 9
- Contacting Macromedia 10
- CHAPTER 1 11
- Before You Begin 11
- ClusterCATS overview 12
- Detailed overview 13
- • A user enters a new URL 14
- • A user employs a bookmark 14
- ClusterCATS overview 5 15
- ClusterCATS components 16
- System requirements 17
- CHAPTER 2 19
- What is scalability? 20
- What is scalability? 11 21
- Load management 22
- Avoiding common bottlenecks 26
- • “What is DNS?” on page 17 27
- Zones and domains 28
- What is website availability? 33
- Common failures 34
- Website availability scenario 35
- Failover considerations 35
- What is clustering? 38
- • It uses proven technology 39
- CHAPTER 3 43
- Installing ClusterCATS 43
- Before you install 44
- Configuring server failover 48
- Configuring firewalls 48
- Analyzing web server content 49
- After you install 55
- CHAPTER 4 57
- Configuring Clusters 57
- ClusterCATS Server 58
- Creating clusters 64
- Creating clusters 55 65
- Creating clusters 57 67
- Creating clusters in UNIX 70
- 3 Click OK 71
- Removing clusters 72
- Adding cluster members 73
- Removing cluster members 75
- Server load thresholds 76
- Server load thresholds 67 77
- Server load thresholds 69 79
- Server load thresholds 71 81
- Session-aware load balancing 82
- Session swapping overview 84
- Using ColdFusion probes 87
- Using ColdFusion probes 81 91
- To remove a ColdFusion probe: 91
- Using ColdFusion probes 83 93
- Using JRun probes 94
- Using JRun probes 85 95
- To remove a JRun probe: 98
- Using JRun probes 89 99
- To add a new JRun probe: 99
- Load-balancing devices 102
- • dynamic-feedback -retry 103
- Product drop-down list 104
- Load-balancing devices 97 107
- Administrator e-mail options 110
- Administering security 113
- Administering security 105 115
- Administering security 107 117
- CHAPTER 5 119
- Maintaining Cluster Members 119
- Resetting cluster members 130
- CHAPTER 6 131
- ClusterCATS Utilities 131
- Using btadmin 132
- Using btcfgchk 136
- Using hostinfo 139
- Using sniff 140
- CHAPTER 7 141
- Optimizing ClusterCATS 141
- Using server failover 147
- Overview of metrics 148
- Load types 149
- Output variables 149
- 142 Index 152
- 146 Index 156
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