circular logging

If all your databases are in a single storage group, circular logging either applies to all the databases or none of them.

Circular logging is the default logging strategy used for a database.

When you choose to use circular logging (the default), the only choice is to do an offline backup and version recovery.

With circular logging, only offline full database backup is possible.

If the database is in a circular logging mode, only offline backup of the database is allowed.

IDS does not restrict you from taking online backup even in the case of circular logging.

Therefore, in a normal production environment, circular logging is not recommended.

Circular logging for Active Directory is enabled on domain controllers and cannot be turned off.

An incremental backup cannot be performed when circular logging is enabled.

The content conversion tracing directories don't use circular logging to remove old files, depending on the age or size of the files.

When circular logging is enabled, you can only perform full backups.

If you are using circular logging, offline backup is the only type of backup supported.

If logretain is set to OFF, circular logging will take place thereby eliminating the necessity for new log files to be created.

While in circular logging you overwrite transactions that were committed and externalized, with archival logging you keep them.

OFF - The default setting to indicate circular logging to be used.

This topic provides a detailed description about how transaction logging works, including circular logging.

Circular logging is not recommended in production environments.

When using circular logging log file extents are reused once they no longer contain active log data.

Through purging of transactions , circular logging reduces consumption of disk space .

In circular logging, logs are used in a round robin manner much the same way as Oracle uses redo logs in NoArchiveLog mode.

Circular logging causes ESE to discard transactions when the committed changes are transmitted to the database file on disk.

Backing up individual table spaces is not supported while the database is in circular logging mode.

Circular-logging queue managers require less maintenance and have less risk of crashing due to using up disk space.

Circular logging is used for the queue database.

With this method, circular logging is used and logs can be overwritten in a round robin manner.

Because the data in the database is transient, this database uses circular logging and is not backed up.

Circular logging is automatically disabled if HasLocalCopy, CopyLogFolderPath, or CopySystemFolderPath is specified.

After the maximum size or age limit is reached, circular logging deletes the oldest MRM log files.

Circular logging is the default option when creating a queue manager.

Circular logging only affords you a version recovery.

Circular logging deletes the oldest log files when the agent log directory reaches 250 MB, or when a log file is 30 days old.

This is because you enable circular logging for the storage group, not for individual databases.

Circular logging: Circular logging is the default logging mode for DB2.

MsExchESEParamCircularLog This is a Boolean flag that determines whether circular logging is enabled or disabled.

Circular logging is in use.

Circular logging was used, with 100 primary logs allocated.

Using this parameter means that the circular logging, that is the default, is being overridden.

A value of 0 indicates that circular logging is disabled; a value of 1 indicates that circular logging is enabled.

With circular logging, if the logretain or the userexit parameter are set to no, log files are reused.

Circular logging helps control the hard disk space that is used by the log files.

By default, the Exchange 2007 server uses circular logging to limit the message tracking logs based on both file size and age.

Circular logging deletes the oldest log files when either of the following conditions is true

How to Enable or Disable Circular Logging for a Storage Group

XADM: DB Won't Start; Circular Logging Deleted Log File Too Soon

To use the Exchange Management Console to enable or disable circular logging