4 Calendar Server Redundancy Group

The Calendar Server Redundancy Group target is a grouping of all Calendar server agent monitored targets that have identical configuration, characteristics, and functionality. While a single Calendar server instance is vulnerable to the failure of its host or system, a redundant group of Calendar Servers continues to function despite the loss of a Calendar server instance, hiding any such failure from clients, and allowing other Calendar server instances in the group to service the requests.

4.1 Connections

The Connections category provides information about the number of connections made to the Calendar servers.

Note:

For Version 1.0, the evaluation and collection frequency for each metric is every 15 minutes.

The following table lists the metrics and their descriptions.

Table 4-1 Connections Metrics

Metric	Description
Number of Reserved Connections	Total number of reserved connections made by the server internally, usually relating the SNC engine and the CWS. The value is the sum of all reserved connections on the Calendar Server agent monitored target
Number of Shared Connections	Total number of shared connections made by Web applications, such as the Oracle Calendar Web client interface and Oracle Calendar Sync. These applications establish a connection pool to the Calendar server that is shared among all connected users. The value is the sum of all shared connections on the Calendar Server agent monitored targets.
Total Number of Calendar Connections	Total number of connections made to the Calendar server of any type. The value is the sum of all the connections on the Calendar Server agent monitored targets
Users-Native Client	Total number of dedicated connections, including connections made by desktop clients such as Oracle Calendar, Oracle Connector For Outlook, or any Calendar SDK based application. The value is the sum of all dedicated connections on the Calendar Server agent monitored targets

4.2 QueueStats

The QueueStats category show the number of wireless notification/reminder requests currently in queue.

Note:

For Version 1.0, the evaluation and collection frequency for each metric is every 15 minutes.

The following table lists the metrics and their descriptions.

Table 4-2 QueueStats Metrics

Metric	Description
Alert Requests	Number of wireless notification/reminder requests currently in queue. The value is the sum of all alert requests on the Calendar Server agent monitored targets.
Mail Requests	Number of mail requests currently in queue. The value is the sum of all mail requests on the Calendar Server agent monitored targets.
Replication Requests	Number of node-to-node replication requests currently in queue. The value is the sum of all replication requests on the Calendar Server agent monitored targets.
Web Conf. Requests	Number of requests for Web Conference items currently in queue. The value is the sum of all Web Conference requests on the Calendar Server agent monitored targets.

4.3 Response

The Response category captures the response characteristics of the Calendar server as seen by a client application.

4.3.1 Status

This metric displays the status of the Calendar server. The status is "up" as long as at least one of the Calendar server agent monitoring targets is available.

User Action

If the Status of Calendar Server Redundancy Group is down, then check the status of the individual Calendar server agent monitored targets to identify which particular one is down.