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Join Systems in a HA Configuration
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Barracuda Networks
Knowledgebase Solution #0000618
3
Barracuda Message Archiver High Availability Overview
You can join together two Barracuda Message Archivers for HA in order to maximize uptime, provide data redundancy, and reduce the chances of
data loss due to system failure.
Deployment Modes
Your deployment mode is usually dependent on the email server configuration that currently exists at your site as well as the number of domains
that are to be archived. Following are the two most typical deployment methods for joining Barracuda Message Archivers in an HA configuration.
Journaling Deployment – Both of your Barracuda Message Archivers you want to join in an HA configuration are configured to use
either a remote journal account to pull messages to be archived, or a special designated SMTP recipient to push messages to the
Barracuda Message Archivers.
SMTP (or SMTP Relay) Deployment – You have a mail server that is not capable of journaling, and you have a Barracuda Spam
Firewall installed.
Retention Policies and Litigation Holds
Barracuda Message Archivers joined in an HA configuration act as independent systems with the addition of messages copied from the HA peers.
Ensure that and are compatible so as to obtain the same search results on the joined systems.retention policies litigation holds
Message Import, Copy, and Search in a High Availability Configuration
The following figure illustrates message import, copy, and search in an HA configuration.
Figure 1. Message Import, Copy, and Search.
Important
High Availability (HA) is an advanced feature and may not be appropriate for all environments; it is recommended that youhighly
contact Barracuda Networks Technical Support before enabling this feature.
If your email server support journaling and you have a Barracuda Spam Firewall, or if you want to join a Barracudadoes not do not
Message Archiver using a with a Barracuda Message Archiver using an , contact Barracudajournaling deployment SMTP deployment
Networks Technical Support for High Availability configuration options.