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Re: Question on Transaction Log Backups

Posted by Erland Sommarskog on 10/02/77 11:48

DataPro (datapro01@yahoo.com) writes:
> Our transaction log file backups occasionally fail as the size of the
> transaction log gets really huge. We'd like to schedule additional
> transaction log backups. Does that require an exclusive on the database
> or can the db be used during a transaction log backup?

Translog backups can be taken without conflict for other users. Else
it would be a quite meaningless operations. Some sites back up their
transaction log every 15 minutes or so.

> Also, does switching to a bulk mode recovery model before a bulk
> operation then switching back to full recovery mode after present any
> issues?

In difference to Robert, I think this makes sense. I believe we do this
in the maintenance procedure that we ship with our product. We switch
to bulk-logged before starting reindexing of tables, and then switch
back to full when it's done.

--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx

 

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