This configuration has three servers and three highly available
NFS packages. Each server is the primary node for one package and
an adoptive node for the other two packages. Figure 3-1 “Three-Server
Mutual Takeover” illustrates this configuration. Dotted
lines indicate which servers are adoptive nodes for the packages.
Figure 3-2 “Three-Server
Mutual Takeover After One Server Fails” illustrates the configuration
after host basil
fails.
Figure 3-2 “Three-Server
Mutual Takeover After One Server Fails” shows the three-server
mutual takeover configuration after host basil
has failed and host sage
has adopted pkg02.
Dotted lines indicate which servers are adoptive nodes for the packages.
Cluster Configuration File for Three-Server Mutual
Takeover |
 |
This section shows the cluster configuration file (cluster.conf)
for this configuration example. The comments are not shown.
CLUSTER_NAME MutTakOvr
FIRST_CLUSTER_LOCK_VG /dev/nfsu01
NODE_NAME thyme
NETWORK_INTERFACE lan0
HEARTBEAT_IP 15.13.119.146
NETWORK_INTERFACE lan1
FIRST_CLUSTER_LOCK_PV /dev/dsk/c0t1d0
NODE_NAME basil
NETWORK_INTERFACE lan0
HEARTBEAT_IP 15.13.113.168
FIRST_CLUSTER_LOCK_PV /dev/dsk/c1t1d0
NODE_NAME sage
NETWORK_INTERFACE lan0
HEARTBEAT_IP 15.13.115.184
NETWORK_INTERFACE lan1
NETWORK_INTERFACE lan2
NETWORK_INTERFACE lan3
FIRST_CLUSTER_LOCK_PV /dev/dsk/c0t1d0
HEARTBEAT_INTERVAL 1000000
NODE_TIMEOUT 2000000
AUTO_START_TIMEOUT 600000000
NETWORK_POLLING_INTERVAL 2000000
VOLUME_GROUP /dev/nfsu01
VOLUME_GROUP /dev/nfsu02
VOLUME_GROUP /dev/nfsu03 |
Package Configuration File for pkg01 |
|
This section shows the package configuration file (nfs1.conf)
for the package pkg01
in this sample configuration. The comments are not shown.
PACKAGE_NAME pkg01
NODE_NAME thyme
NODE_NAME basil
NODE_NAME sage
RUN_SCRIPT /etc/cmcluster/nfs/nfs1.cntl
RUN_SCRIPT_TIMEOUT NO_TIMEOUT
HALT_SCRIPT /etc/cmcluster/nfs/nfs1.cntl
HALT_SCRIPT_TIMEOUT NO_TIMEOUT
SERVICE_NAME nfs1.monitor
SERVICE_FAIL_FAST_ENABLED NO
SERVICE_HALT_TIMEOUT 300
SUBNET 15.13.112.0
PKG_SWITCHING_ENABLED YES
NET_SWITCHING_ENABLED YES
NODE_FAIL_FAST_ENABLED NO |
NFS Control Script for pkg01 |
|
This section shows the NFS control script (nfs1.cntl)
for the package pkg01
in this sample configuration. Only the user-configured part of the
script is shown; the executable part of the script and most of the
comments have been omitted.
PATH=/sbin:/usr/bin:/usr/sbin:/etc:/bin
#VGCHANGE="vgchange -a e -q n"
#VGCHANGE="vgchange -a y"
VGCHANGE="vgchange -a e" # Default
VG[0]=nfsu01
LV[0]=/dev/nfsu01/lvol1; FS[0]=/hanfs/nfsu011
XFS[0]=/hanfs/nfsu011
IP[0]=15.13.114.243
SUBNET[0]=15.13.112.0
NFS_SERVICE_NAME[0]="nfs1.monitor"
NFS_SERVICE_CMD[0]="/etc/cmcluster/nfs/nfs.mon"
#NFS_SERVICE_RESTART[0]= |
Package Configuration File for pkg02 |
|
This section shows the package configuration file (nfs2.conf)
for the package pkg02
in this sample configuration. The comments are not shown.
PACKAGE_NAME pkg02
NODE_NAME basil
NODE_NAME sage
NODE_NAME thyme
RUN_SCRIPT /etc/cmcluster/nfs/nfs2.cntl
RUN_SCRIPT_TIMEOUT NO_TIMEOUT
HALT_SCRIPT /etc/cmcluster/nfs/nfs2.cntl
HALT_SCRIPT_TIMEOUT NO_TIMEOUT
SERVICE_NAME nfs2.monitor
SERVICE_FAIL_FAST_ENABLED NO
SERVICE_HALT_TIMEOUT 300
SUBNET 15.13.112.0
PKG_SWITCHING_ENABLED YES
NET_SWITCHING_ENABLED YES
NODE_FAIL_FAST_ENABLED NO |
NFS Control Script for pkg02 |
|
This section shows the NFS control script (nfs2.cntl)
for the package pkg02
in this sample configuration. Only the user-configured part of the
script is shown; the executable part of the script and most of the
comments have been omitted.
PATH=/sbin:/usr/bin:/usr/sbin:/etc:/bin
#VGCHANGE="vgchange -a e -q n"
#VGCHANGE="vgchange -a y"
VGCHANGE="vgchange -a e" # Default
VG[0]=nfsu02
LV[0]=/dev/nfsu02/lvol1; FS[0]=/hanfs/nfsu021
XFS[0]=/hanfs/nfsu021
IP[0]=15.13.112.244
SUBNET[0]=15.13.112.0
NFS_SERVICE_NAME[0]="nfs2.monitor"
NFS_SERVICE_CMD[0]="/etc/cmcluster/nfs/nfs.mon"
#NFS_SERVICE_RESTART[0]= |
Package Configuration File for pkg03 |
|
This section shows the package configuration file (nfs3.conf)
for the package pkg03
in this sample configuration. The comments are not shown.
PACKAGE_NAME pkg03
NODE_NAME sage
NODE_NAME thyme
NODE_NAME basil
RUN_SCRIPT /etc/cmcluster/nfs/nfs3.cntl
RUN_SCRIPT_TIMEOUT NO_TIMEOUT
HALT_SCRIPT /etc/cmcluster/nfs/nfs3.cntl
HALT_SCRIPT_TIMEOUT NO_TIMEOUT
SERVICE_NAME nfs3.monitor
SERVICE_FAIL_FAST_ENABLED NO
SERVICE_HALT_TIMEOUT 300
SUBNET 15.13.112.0
PKG_SWITCHING_ENABLED YES
NET_SWITCHING_ENABLED YES
NODE_FAIL_FAST_ENABLED NO |
NFS Control Script for pkg03 |
|
This section shows the NFS control script (nfs3.cntl)
for the package pkg03
in this sample configuration. Only the user-configured part of the
script is shown; the executable part of the script and most of the
comments have been omitted.
PATH=/sbin:/usr/bin:/usr/sbin:/etc:/bin
#VGCHANGE="vgchange -a e -q n"
#VGCHANGE="vgchange -a y"
VGCHANGE="vgchange -a e" # Default
VG[0]=nfsu03
LV[0]=/dev/nfsu03/lvol1; FS[0]=/hanfs/nfsu031
XFS[0]=/hanfs/nfsu031
IP[0]=15.13.114.245
SUBNET[0]=15.13.112.0
NFS_SERVICE_NAME[0]="nfs3.monitor"
NFS_SERVICE_CMD[0]="/etc/cmcluster/nfs/nfs.mon"
#NFS_SERVICE_RESTART[0]= |
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