NAME | Description | Examples | Attributes | See Also
The DNS data service for Sun Cluster 3.2 is configured as a resource managed by the Sun Cluster Resource Group Manager (RGM). You must set the following properties on a DNS resource.
See r_properties(5) for a complete description of the following resource properties.
No default
At creation
53/udp
At creation
For DNS resources, the value of 53/udp is the only recommended value.
2
When disabled
300
When disabled
60
Any time
Type string array. This property is the path name to the configuration directory that contains the file named.conf of the DNS resource. You must specify only one value for this property at resource creation time.
Type string array. This property is the configuration file to be used for starting DNS. The default is conf, which means that the DNS is started by using the named.conf file located in the directory pointed to by the value of the Confdir_list property. A value of boot means that DNS is started with the named.boot file as the configuration file. You can specify the value of this property at resource creation time only.
Type integer. Default is 4. This property controls the restarts of the fault monitor. It indicates the number of times the fault monitor is restarted by the process monitor facility and corresponds to the -n option passed to the pmfadm(1M) command. The number of restarts is counted in a specified time window (see the property Monitor_retry_interval). Note that this property refers to the restarts of the fault monitor itself, not DNS. The restarts of DNS are controlled by the system-defined properties Thorough_Probe_Interval and Retry_IntervalandRetry_Count, as specified in the description of those system-defined properties. See clresource(1CL). You can modify the value for this property any time.
Type integer. Default is 2. Indicates the time (in minutes) over which the failures of the fault monitor are counted and corresponds to the -t option passed to the pmfadm(1M) command. If the number of times the fault monitor fails exceeds the extension property Monitor_retry_count, the fault monitor is not restarted by the Process Monitor Facility. You can modify the value for this property any time.
Type integer. Default is 120. Indicates the time-out value (in seconds) used by the fault monitor to probe a DNS instance. You can modify the value for this property any time.
For this example to work, you must first install the data service. This example instantiates a failover DNS resource named dnss in a resource group named dns-rg. dns-rg is assumed to contain at least one LogicalHostname resource, which identifies the logical hostnames associated with the resource group.
example# clresourcetype register SUNW.dns example# clresource create -g dns-rg –t SUNW.dns \ -p Confdir_list=/global/dns dnss |
In this example, the DNS resource created is named dnss, which listens on port 53, with a corresponding configuration directory path name /global/dns. The configuration file that is used for starting the DNS resource is named.conf, located under /global/dns.
For this example to work, the data service must first be installed. This example instantiates a failover DNS resource named dns in a resource group named dns-rg, which uses the LogicalHostname resource lh-specific.
example# clresourcetype register SUNW.dns example# clresource create –g dns-rg –t SUNW.dns \ -p Confdir_list=/global/dns \ -p Network_resources_used=lh-specific dns-lh |
In this example, the LogicalHostname resource lh-specific must be a resource in the dns-rg resource group.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
Availability |
SUNWscdns |
in.named(1M), pmfadm(1M), scha_resource_get(3HA), clresourcetype(1CL), clresourcegroup(1CL), named.conf(4), attributes(5), r_properties(5)
Sun Cluster Data Services for DNS Guide for Solaris OS
NAME | Description | Examples | Attributes | See Also