Friday, December 16, 2011

What is .TUF file in Log Shipping

More About Microsoft SQL Server Transaction Undo file (.TUF) In Log Shipping. 

.TUF file is a Transaction Undo file. The transaction undo file contains modifications that were not committed on the Source database when the transaction log was backed up and the log was restored to standby database, and left the database in a state that allows additional transaction log backups to be restored to it. When another transaction log is restored to standby database, SQL Server uses data from the undo file (.tuf) and the transaction log (.trn) to continue restoring the incomplete transactions. 


A transaction undo file is required if a database is in read-only state, in this state, further transaction log backups may be applied.

The undo file will be re-written with any transactions that, at that point, are incomplete.


I hope you are not confused. :)


About Log Shipping. Log Shipping Administration. An Overview of Log Shipping in SQL Server 2005. An Overview of Log Shipping in SQL Server 2008 r2. An Overview of Log Shipping in SQL Server 2012. How to Perform SQL Server Log Shipping. Log Shipping vs Replication. Log shipping MS SQLServer 2008. SQL Server 2000 Log shipping. SQL Server Log Shipping. How to Perform SQL Server Log Shipping. SQL Server Log Shipping Tutorial. sql server log shipping vs replication. sql server log shipping vs mirroring. sql server log shipping interview questions. sql server log shipping port. sql server log shipping firewall ports. sql server log shipping multiple databases. log shipping issues. log shipping errors. Scheduling Sub-Minute Log Shipping in SQL Server 2008. Monitor Log Shipping. View the Log Shipping Report. SQL Server Log Shipping For Large Databases. Configure Log Shipping. Fail Over to a Log Shipping Secondary. Remove Log Shipping. Setting Up Log Shipping. SQL Server Log Shipping to a Different Domain or Workgroup. Step By Step SQL Server Log Shipping. Transaction Undo file. Whats a TUF File. Using Standby Servers. The purpose of an “undo” file in SQL Server. What is .TUF file in Log Shipping. SQL Server Transaction Log Shipping Replication. Undo Log File. Restore Files and Filegroups. TUF File and little about SQL Agents. Rollback and Recovery. Rollback of Transaction(s) after SHUTDOWN ABORT. How Databases Log Data Changes.

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