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| Defining the remote cluster and heartbeat objects | ||
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| Prev | Setting up a replicated global cluster | Next |
After configuring global clustering, add the remote cluster object to define the IP address of the cluster on the secondary site, and the heartbeat object to define the cluster-to-cluster heartbeat.
Heartbeats monitor the health of remote clusters. VCS can communicate with the remote cluster only after you set up the heartbeat resource on both clusters.
To define the remote cluster and heartbeat
On the primary site, enable write access to the configuration:
# haconf -makerw
Define the remote cluster and its virtual IP address.
In this example, the remote cluster is rac_cluster102 and its IP address is 10.11.10.102:
# haclus -add rac_cluster102 10.11.10.102
Complete step 1 and step 2 on the secondary site using the name and IP address of the primary cluster.
In this example, the primary cluster is rac_cluster101 and its IP address is 10.10.10.101:
# haclus -add rac_cluster101 10.10.10.101
On the primary site, add the heartbeat object for the cluster. In this example, the heartbeat method is ICMP ping.
# hahb -add Icmp
# hahb -modify Icmp ClusterList rac_cluster102 # hahb -modify Icmp Arguments 10.11.10.102 -clus rac_cluster102
Save the configuration and change the access to read-only on the local cluster:
# haconf -dump -makero
Complete step 4-6 on the secondary site using appropriate values to define the cluster on the primary site and its IP as the remote cluster for the secondary cluster.
Verify cluster status with the hastatus -sum command on both clusters.
# hastatus -sum
Display the global setup by executing haclus -list command.
# haclus -list rac_cluster101 rac_cluster102
Example of heartbeat additions to the main.cf file on the primary site:
.
.
remotecluster rac_cluster102 (
Cluster Address = "10.11.10.102"
)
heartbeat Icmp (
ClusterList = { rac_cluster102 }
Arguments @rac_cluster102 = { "10.11.10.102" }
)
system galaxy (
)
.
.
Example heartbeat additions to the main.cf file on the secondary site:
.
.
remotecluster rac_cluster101 (
Cluster Address = "10.10.10.101"
)
heartbeat Icmp (
ClusterList = { rac_cluster101 }
Arguments @rac_cluster101 = { "10.10.10.101" }
)
system mercury (
)
.
.
See the Veritas Cluster Server User's Guide for details for configuring the required and optional attributes of the heartbeat object.