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Exchange 2010 Public Folder Databases

Question regarding Exchange 2010 public folder databases and log truncation.  We use to have public folder databases on 2 of our exchange 2010 servers.  I've added the public folder databases to the remaining exchange servers in our environment and made them replicas.  We are in a completely centralized environment where we have 3 main exchange servers hosting all of exchange databases out of our main datacenter and another 3 exchange servers in our DR site.  All servers are a member of the DAG and host copies of all datbases in the environment.  I've added public folder databases to all servers to ensure complete redundancy.  The original 2 public folder databases are being backed up using of backup software SnapManger for Exchange which will truncate the logs after the backup.  Correct me if I'm wrong in 2010 public folder databases are not DAG aware so the logs will not get truncated on the other replicas until I run backup on these databases as well?  Unlike DAG member databases where I  only need to backup one copy of each database and the logs will truncate on each member node for the databases backed up.
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georgedschneider
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georgedschneider
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Simon Butler (Sembee)ConsultantCommented:
You will need to backup each database individually. They are in effect standalone per server.
Furthermore, if you have a failover event you will also have to change the public folder database on the mailbox database for the clients to continue to have access to the public folder content.

The other option of course is to enable circular logging on the public folder databases and only backup one copy.

Simon.
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