Blackberry SWD-20120924140022907 Attachment viewing, Provide services for attachment viewing

Administration GuideConfiguring BlackBerry Enterprise Server high availability

Health parameter	Description
Attachment viewing	This health parameter indicates whether the BlackBerry Messaging Agent can
	provide services for attachment viewing.
Connection to the BlackBerry	This health parameter indicates whether BlackBerry Enterprise Server
Configuration Database	components can connect to the BlackBerry Configuration Database.
Push application access	This health parameter indicates whether the BlackBerry MDS Connection
	Service can push application data to BlackBerry devices.
BlackBerry Collaboration Service	This health parameter indicates whether the BlackBerry Collaboration Service
	can provide services for the collaboration client on BlackBerry devices.
BlackBerry Policy Service	This health parameter indicates whether the BlackBerry Policy Service is
	available. You cannot set the failover threshold or promotion threshold below
	this health parameter.
BlackBerry Synchronization Service	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.
Organizer data synchronization	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