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Elliot asked

Replication - Can log backups interfere with transactional replication?

Hi there,

I have a need to set up a copy of a DB via either log shipping or transactional replication. If I have a backup stratergy that already backs up the transaction log every hour would this affect the replication if the freqency of the push replication is lower (for instance, I just want the DB to replicate once a day)?

Thanks in advance

Elliot

sql-server-2005replication
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sp_lock answered

Elliot

Log shipping will be affect by log backups, as each backup is part of the chain. If a tlog backup is taken on the main db and not applied to the secondary db then it will fail.

Replication is not affect by log backups as replication creates a log reader that applies the changes to the subscriber(s).

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Elliot answered

Many thanks Jon

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