Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

In the vxfenmode file on the client nodes, vxfenmode is set to customized with
vxfen mechanism set to cps.
The two SCSI-3 disks are part of the disk group vxfencoorddg. The third
coordination point is a CP server hosted on an SFHA cluster, with its own shared
database and coordinator disks.
Figure I-2
Client cluster served by highly available CP server and 2 SCSI-3
disks
SAN
FC Switch
CPS database
/etc/VRTScps/db
NIC 1
Cluster -1
node 1
NIC 2
NIC 1
Cluster-1
node 2
NIC 2
Ethernet
Switch
Ethernet
Switch
VLAN
Private
network
Ethernet
Switch
Intranet/
Internet
Public network
NIC 3
NIC 3
Client cluster
NIC 1
CPS-Primary
node
NIC 2
NIC 1
CPS-standby
node
NIC 2
Ethernet
Switch
Ethernet
Switch
VLAN
Private network
NIC 3
NIC 3
SFHA
cluster
VIP
vxcpserv
vxcpserv
VIP
Data
LUNs
Coordinator
LUNs
SAN
FC Switch
SCSI-3 LUNs as 2
coordination points
disk1
disk2
CPS hosted on
SFHA cluster
cp1=[VIP]:14250(port no.)
HBA
HBA
HBA HBA
GigE
GigE
GigE
GigE
GigE
GigE
GigE
GigE
mycps1.company.com
mycps2.company.com
vxfenmode=customized
vxfen_mechanism=cps
cps1=[VIP]:14250
vxfendg=vxfencoorddg
The coordinator disk group
specified in /etc/vxfenmode
should have these 2 disks.
467Sample SFCFS cluster setup diagrams for CP server-based I/O fencing
Configuration diagrams for setting up server-based I/O fencing