ePrism User Guide - EdgeWave

HALO (High Availability and Load Optimization)
Licensing
HALO Queue Replication must be licensed to use it beyond the evaluation period.
See “License Management” on page 184 for more information on licensing optional components.
Configuring Queue Replication
Select HALO -> Queue Replication from the menu to configure queue replication.
• Enable Queue Replication — Select the check box to enable queue replication on this system.
Replication must be enabled on both the source and mirror hosts in the Basic Config ->
Network screen.
• Replication Timeout —Specify the time, in seconds, to contact the host system before timing
out.
• Replicate to Host — The mail queues are automatically updated when a message is first
received, and the queues are also synchronized at regular intervals. Press this button to replicate
the queue to the mirror host system immediately.
• Mirrored Messages — This value indicates the current amount of queued mail that is mirrored
on this ePrism.
• Purge Mirrored Messages — Select this button to delete any mail messages in the local mirror
queue. These are the files that we are mirroring for another host server.
• Deliver Mirrored Messages — Select this button to take ownership and process the mail that
we are mirroring for another source system. If the server is still alive, importing and processing
the mirror queue may result in duplicate messages being delivered.
Caution: Do not press this button unless you are certain that the source system is unable
to deliver mail.
• Review Mirrored Messages — Select this button to review any mail in the local mirror queue
that we are mirroring for another source server.
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