Backing up Exchange Server (no-DAG) during the mailbox migration ?

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Sunil Chauhan

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Hi All,

When setting up DAG from this Exchange mailbox server with another node, do I need to turn off Circular Logging or keep it running?

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ASKER

OK, so in this case does the transaction log drives can grow bigger during the DAG replication or setup between the two nodes ?

The Circular logging was enabled since I was migrating it from the old Exchange MBX VM.

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Sunil Chauhan

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If your backup is happening regularly then monitor the growth of your log drive, it should truncate your logs when backup is completed. You can disable it if you want.

ASKER

Ah I see,
so I will still enable the Circular logging on both DAG node member to avoid the disk space filling up.

From what I understand, when using DAG is that both Database and the transaction log must be on the same drive, cannot be separated.

ASKER

Hi Amit,

When doing the DAG, I assume the backup can be taken from both Exchange mailbox VMs not just one only like in the Exchange 2007 CCR ?

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ASKER

Hi Amit,

Thanks for the quick reply.

in this case if I already configure the DAG, does turning off and turning on the circular logging requires me to dismount the mailbox DB on each node ?

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ASKER

OK, so to minimise the number of mailbox outage, I assume I can just disable the circular logging after the DAG has been completely configured on my two nodes.

Mounting & dismounting passive mailbox database should not cause any outage I assume.

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Hi All,
I've posted follow up question in: https://www.experts-exchange.com/questions/29041972/Migrating-Exchange-2013-Transaction-logs-to-separate-drive-location-before-configuring-DAG.html