Blackberry PRD-10459-016 User Guide - Page 106
Changing when automatic failover occurs by customizing the health parameters for user accounts
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Administration Guide Configuring BlackBerry Enterprise Server high availability Health parameter Attachment viewing Connection to the BlackBerry Configuration Database Push application access BlackBerry Collaboration Service BlackBerry Policy Service BlackBerry Synchronization Service Organizer data synchronization Description This health parameter indicates whether the BlackBerry Messaging Agent can provide services for attachment viewing. This health parameter indicates whether BlackBerry Enterprise Server components can connect to the BlackBerry Configuration Database. This health parameter indicates whether the BlackBerry MDS Connection Service can push application data to BlackBerry devices. This health parameter indicates whether the BlackBerry Collaboration Service can provide services for the collaboration client on BlackBerry devices. This health parameter indicates whether the BlackBerry Policy Service is available. You cannot set the failover threshold or promotion threshold below this health parameter. This health parameter indicates whether the BlackBerry Synchronization Service is available. You cannot configure the failover threshold or promotion threshold so that they are below this health parameter. This health parameter indicates whether the BlackBerry Synchronization Service can synchronize organizer data between BlackBerry devices and the messaging server over the wireless network. You cannot configure the failover threshold or promotion threshold so that they are below this health parameter. Changing when automatic failover occurs by customizing the health parameters for user accounts and messaging servers By default, the health parameters for user accounts and messaging servers use percentages to determine when a BlackBerry Enterprise Server instance is unhealthy. The User accounts health parameter indicates a BlackBerry Enterprise Server instance is unhealthy if less than 75% of the user accounts are started. The Connection to the messaging server(s) health parameter indicates that a BlackBerry Enterprise Server instance is unhealthy if the BlackBerry Enterprise Server instance cannot connect to at least 75% of the messaging servers in your organization. If either of these health parameters indicate that the primary BlackBerry Enterprise Server is unhealthy and you turn on automatic failover, the BlackBerry Enterprise Server starts the failover process. You can change the percentages of these health parameters to customize when you want automatic failover to occur in your organization's environment. For example, if your organization requires that all users can access email messages from BlackBerry devices at all times and that the BlackBerry Enterprise Server is connected to all of the messaging servers at all times, you can change the value of the Connection to the messaging server(s) health parameter to 100%. 106
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