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Question 34/82
As part of your data center's high availability strategy, you are creating resource definitions to control the management of a web-based application by the Oracle Grid Infrastructure clusterware stack.
The application and its VIP are normally online on one node of a four-node cluster due to the CARDINALITY of the resource type being set to 1.
You have chosen a policy-managed resource type for the application by using a server pool that uses only RACNODE3 and RACNODE4. The START ATTEMPTS attribute for the resource is set to 2 and FAILURE INTERVAL is set to 60.
What is true about the attributes that may be set to control the application?
The application and its VIP are normally online on one node of a four-node cluster due to the CARDINALITY of the resource type being set to 1.
You have chosen a policy-managed resource type for the application by using a server pool that uses only RACNODE3 and RACNODE4. The START ATTEMPTS attribute for the resource is set to 2 and FAILURE INTERVAL is set to 60.
What is true about the attributes that may be set to control the application?
Correct Answer: A
Explanation/Reference:
Explanation:
CARDINALITY
The number of servers on which a resource can run, simultaneously. This is the upper limit for resource cardinality.
RESTART_ATTEMPTS
The number of times that Oracle Clusterware attempts to restart a resource on the resource's current server before attempting to relocate it. A value of 1 indicates that Oracle Clusterware only attempts to restart the resource once on a server. A second failure causes Oracle Clusterware to attempt to relocate the resource. A value of 0 indicates that there is no attempt to restart but Oracle Clusterware always tries to fail the resource over to another server.
FAILURE_INTERVAL
The interval, in seconds, before which Oracle Clusterware stops a resource if the resource has exceeded the number of failures specified by the FAILURE_THRESHOLD attribute. If the value is zero (0), then tracking of failures is disabled.
FAILURE_THRESHOLD
The number of failures of a resource detected within a specified FAILURE_INTERVAL for the resource before Oracle Clusterware marks the resource as unavailable and no longer monitors it. If a resource fails the specified number of times, then Oracle Clusterware stops the resource. If the value is zero (0), then tracking of failures is disabled. The maximum value is 20.
Oracle® Clusterware Administration and Deployment Guide
11g Release 2 (11.2)
Explanation:
CARDINALITY
The number of servers on which a resource can run, simultaneously. This is the upper limit for resource cardinality.
RESTART_ATTEMPTS
The number of times that Oracle Clusterware attempts to restart a resource on the resource's current server before attempting to relocate it. A value of 1 indicates that Oracle Clusterware only attempts to restart the resource once on a server. A second failure causes Oracle Clusterware to attempt to relocate the resource. A value of 0 indicates that there is no attempt to restart but Oracle Clusterware always tries to fail the resource over to another server.
FAILURE_INTERVAL
The interval, in seconds, before which Oracle Clusterware stops a resource if the resource has exceeded the number of failures specified by the FAILURE_THRESHOLD attribute. If the value is zero (0), then tracking of failures is disabled.
FAILURE_THRESHOLD
The number of failures of a resource detected within a specified FAILURE_INTERVAL for the resource before Oracle Clusterware marks the resource as unavailable and no longer monitors it. If a resource fails the specified number of times, then Oracle Clusterware stops the resource. If the value is zero (0), then tracking of failures is disabled. The maximum value is 20.
Oracle® Clusterware Administration and Deployment Guide
11g Release 2 (11.2)
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