System information

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Step 4. View High Availability Status
You can view the number of messages that are waiting to be processed on the selected Barracuda Message Archiver in the pagBASIC > Status
e in the section.HA Cluster Status
How to Make Changes to an Existing High Availability Cluster
This article refers to firmware version 3.5 and higher.
To change the IP address on either appliance in an HA pair:
Pause any new mail flow to both appliances in the HA pair including journaling (SMTP or POP/IMAP) as well as Exchange import,
stubbing, and data imports such as FolderSync or PIMSync.
Make the necessary IP address changes on the appliances.
Resume journaling and any other data flows.
Configuration Variables
In firmware 3.5 and higher, many configuration variables automatically synchronize across the cluster. For example, saved searches, retention
policies, litigation holds configured on one appliance are also available on the other appliance in the HA pair.
Cluster Variables
The following list describes the cluster variables that are across an HA pair:not synchronized
GroupWise configuration details
Any details (for example, stubbing, folder sync, etc.)Exchange Integration
Serial number (this never changes)
Administrator password
Guest password
Whether the latest release notes have been read
IP Address, Subnet Mask, and Default Gateway (as configured on the page)BASIC > IP Configuration
Primary DNS Server and Secondary DNS Server (as configured on the page)BASIC > IP Configuration
Host Name (as configured on the page)BASIC > IP Configuration
Time Zone (as configured on the page)BASIC > Administration
Web Interface HTTP Port (as configured on the page); this must be the same value on systems in theBASIC > Administration all
cluster
Any advanced IP configuration (as configured on the page)ADVANCED > ADVANCED Networking
All customized branding (models 650 and above, as configured on the on the page)ADVANCED > Appearance
Cluster Shared Secret; note that this must be the same on systems for the cluster to work properly (as configured on the all ADVANCED
page)> High Availability
Cluster Hostname (as configured on the page)ADVANCED > High Availability
Local Host Map (as configured on the page)ADVANCED > High Availability
Web Interface HTTPS/SSL port (as configured on the on the page); must be the same value on ADVANCED > Secure Administration a
If a system in the HA configuration goes offline, the status button in the table on the Clustered Systems ADVANCED > High
page displays red. Mouse-over the system to view system status. Archiving behavior continues as expected on theAvailability
remaining system in the HA configuration.
Important
Firmware release 3.5 and higher synchronizes commonly used configuration settings between appliances in a High Availability (HA)
configuration including saved searches, retention policies, and litigation holds. Before moving to firmware release 3.5, confirm that the
saved searches, retention policies, and litigation holds are configured the same on all systems in the HA configuration. Additionally,
before upgrading the clustered appliances to firmware version 3.5, it is that you verify all systems are running the sameimperative
firmware release. Upgrade clustered systems in a parallel time frame so that data from the primary system continues to reach the
secondary system.
Before you perform maintenance upon, or break an HA pair, to determine the propercontact Barracuda Networks Technical Support
workflow for your environment.