What is .TUF file in Log Shipping?
Posted by Jugal Shah on April 4, 2011
TUF file is a Microsoft SQL Server Transaction Undo file. .TUF File contains the information regarding any modifications that were made as part of incomplete transactions at the time the backup was performed.
A transaction undo(.TUF) file is required if a database is loaded in read-only state. In this state, further transaction log backups may be applied.




subbarao said
1 If so what is the main difference b/w .trn file and .tuf file.
2 when to use .trn file and .tuf file
3 how to use these two these two
Jugal Shah said
.Trn is log backup file and .TUF is undo file. We can not use .TUF file but we can use .TRN file using Restore Log command.
Alisha said
.trn= extension of transaction log file….
.tuf= transaction undo file ,this is generated when logshipping is configured in standby mode… this keep a record of modifications done with incompleted transactions while the backup is performed
Harithasri Sriram said
What if this tuf get deleted accidentally? doest it affect logshipping behaviour.Pls explain.