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Availability group & backups from secondary

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We have an availabiltiy group configured using asynchronous replication sending data to multiple read only replicas.

On the primary database we have log shipping setup for our DR solution using a 3rd party tool for better compression and to help us reach our RPO target.

We have a data warehouse that needs to read from the transaction logs however since they are being compressed from a 3rd party they cannot do so without first decompressing them.

Can I setup native log backups on one of the read only replicas and grab all of the transactions?

My hunch is that the secondary will not contain all the transactions since it is already being backed up on the primary and sending the truncation command, but thought I would ask.


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