Understanding Transaction Log Architecture

The topics in this section provide the basic architectural information required to understand how the transaction log is used to guarantee the data integrity of the database and how it is used for data recovery.

Understanding the information in this section can help improve your effectiveness in managing transaction logs.

In This Section

Topic	Description
Transaction Log Logical Architecture	Describes the logical architecture of the transaction log.
Transaction Log Physical Architecture	Describes the physical components of the transaction log file, including virtual log files.
Checkpoints and the Active Portion of the Log	Describes the checkpoint operation and the effect of checkpoints on the transaction log.
Write-Ahead Transaction Log	Describes the role of the write-ahead transaction log in recording data modifications to disk.

See Also

Concepts

Working with Transaction Log Backups

Other Resources

Managing the Transaction Log

Help and Information

Getting SQL Server 2005 Assistance