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Sun Cluster 3.0 Data Services Installation and Configuration Guide

Configuring Sun Cluster HA for DNS Extension Properties

The only required extension property for creating a DNS resource is Confdir_list.

See Appendix A, Standard Properties for details on all Sun Cluster properties.

How to Configure Sun Cluster HA for DNS Extension Properties

Typically, you configure these properties by using the Cluster Module of Sun Management Center or the command line scrgadm -x parameter=value at the time you create the Sun Cluster HA for DNS server resource. You can also configure them later by using the procedures described in Chapter 9, Administering Data Service Resources.

Table 6-2 describes the Sun Cluster HA for DNS extension properties. Some extension properties can be updated dynamically and others only when the resource is created. The Tunable column indicates when the property can be updated.

Table 6-2 Sun Cluster HA for DNS Extension Properties

Name/Data Type 

Default 

Range 

Tunable 

Description 

Confdir_list (string array)

None 

None 

At creation 

A comma-separated list of path names, each of which points to the directory that contains the conf directory for a DNS instance

DNS_mode

conf

None 

At creation 

The DNS configuration file to use, either conf (named.conf) or boot (named.boot)

Monitor_retry_count (integer)

4 

0 - 2,147,483,641 

 

-1 indicates an infinite number of retry attempts. 

Any time 

The number of times the fault monitor is to be restarted by the process monitor facility during the time window specified by the Monitor_retry_interval property. This property refers to restarts of the fault monitor itself rather than to the resource. Restarts of the resource are controlled by the system-defined properties Retry_interval and Retry_count.

Monitor_retry_interval (integer)

2 

0 - 2,147,483,641 

 

-1 indicates an infinite retry interval. 

Any time 

The time (in minutes) over which failures of the fault monitor are counted. If the number of times the fault monitor fails exceeds the value specified in the extension property Monitor_retry_count within this period, the fault monitor is not restarted by the process monitor facility.

Probe_timeout (integer)

30 

0 - 2,147,483,641 

Any time 

The time-out value (in seconds) used by the fault monitor to probe a DNS instance