Red Hat CLUSTER SUITE 4.7 DM MULTIPATH Instalační příručka stáhnout pdf (Strana 118)

102 Chapter 8. Initial LVS Conﬁguration

8.6. Conﬁguring Services on the Real Servers

If the real servers in the cluster are Red Hat Enterprise Linux systems, set the appropri-

ate server daemons to activate at boot time. These daemons can include httpd for Web

services or xinetd for FTP or Telnet services.

It may also be useful to access the real servers remotely, so the sshd daemon should also

be installed and running.

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Red Hat Cluster Suite 1
Conﬁguring and Managing a 1
Introduction 7
2. Document Conventions 8
<version-number>/ 10
3. More to Come 11
4. Activate Your Subscription 12
4.3. Connect Your System 13
Table of Contents 15
Chapter 1 17
Cluster Suite 4 20
Chapter 2 25
• A fence device 26
Important 30
2.3. Setting Up the Nodes 34
times. Refer 37
/etc/modprobe.conf: 38
/etc/hosts File 39
/etc/hosts ﬁle to ensure that 40
/etc/hosts ﬁle is 40
/sbin/ip addr list 40
The previous example shows: 43
Onboard serial ports (ttyS) 43
USB devices (usb) 43
SCSI devices (sd) 43
NETMASK=255.255.255.0 46
GATEWAY=192.168.1.1 46
IPADDR=192.168.1.10 46
2.5.3. Conﬁguring UPS Systems 47
2.5.3.1. Partitioning Disks 48
Chapter 3 51
Red Hat GFS products 55
3.5. Naming The Cluster 58
3.6. Conﬁguring Fence Devices 59
/dev/ttys2) 63
ﬁle of each cluster node 65
Two Nodes 67
Than Two Nodes 68
3.9. Adding Cluster Resources 75
to be run on 76
/etc/init.d/userscript) 77
/etc/cluster/cluster.conf 77
Chapter 4 83
# clustat 86
Chapter 5 93
</Directory> 95
Chapter 6 99
6.2. Basic Conﬁgurations 100
Chapter 7 101
7.3. LVS Scheduling Overview 105
7.4. Routing Methods 107
7.4.1. NAT Routing 108
7.5.1. Persistence 109
7.5.2. Firewall Marks 110
7.6.1.1. pulse 111
7.6.1.2. lvs 111
7.6.1.3. ipvsadm 112
7.6.1.4. nanny 112
7.6.1.7. send_arp 112
Chapter 8 113
/sbin/chkconfig --list 114
/usr/sbin/piranha-passwd 114
Chapter 9 119
GATEWAY= line, the 121
ONBOOT=no in their network 122
/sbin/ifup ethN 123
/sbin/ifdown ethN 123
/sbin/ifconfig 124
/sbin/route 124
/sbin/service iptables status 124
9.4. FTP In an LVS Cluster 125
/etc/vsftpd.conf: 127
/etc/vsftpd.conf 127
10000:20000 in the com 128
1024:65535 128
/sbin/service command 129
/sbin/service command, see 129
Chapter 10 131
10.3. CONTROL/MONITORING 132
10.4. GLOBAL SETTINGS 134
10.5. REDUNDANCY 136
Redundant server public IP 137
10.6. VIRTUAL SERVERS 138
• \n for new line 148
• \r for carriage return 148
• \t for tab 148
10.7.1. Synchronizing lvs.cf 149
10.7.2. Synchronizing sysctl 150
10.8. Starting the Cluster 151
III. Appendixes 153
Appendix A 155
A.3.2. SCSI Bus Termination 160
A.3.3. SCSI Bus Length 160
Appendix B 163
Hat GFS 165
• Table B-3 — For Red Hat GFS 166
/mnt/cdrom/RedHat/RPMS/ 171
Appendix C 173
Update 3 174
Update 3 159 175
Update 3 161 177
Update 3 163 179
Colophon 187

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