Руководство По Устранению Ошибки для Cisco Cisco Agent Desktop 9.0

March 13, 2015

Capacity and Performance

Guidelines

Service Autorecovery

Fault Tolerance

CAD 9.0 uses the “warm standby” approach to fault tolerance and autorecovery. No
manual intervention is required to recover a failed service.

Data and features might be lost at the time of the failure. For instance:

■

Active monitoring and recording is stopped. They can be restarted manually
after the failover.

■

Enterprise data for the call in progress is lost at the time of the failure.

All CAD features are fault-tolerant to a single point of failure with several exceptions.
They are:

■

Playback. Recordings are tied to a specific service, and thus are not
replicated.

■

SPAN-based monitoring and recording. If fault tolerance is required, desktop
monitoring can be used for agents who use Agent Desktop only. Desktop
monitoring is not supported for agents who use IP Phone Agent or CAD-BE.

CAD uses LDAP replication to provide fault tolerance for configuration information,
such as work flows, agent hot seat settings, and so on. It uses SQL Server merge
replication to provide fault tolerance for Recording and Statistics service-related data,
such as call logs, agent state logs, recording logs, and so on.

NOTE: CAD uses flat files by default to store Recording and Statistics
service-related data. Flat files do provide replication, but it might not
be complete. For reliable replication of this information, SQL Server
must be used. Refer to the Cisco CAD Installation Guide for more
information.