Backing Up Data › Global Backup Options › Backup Manager Agent Options › Agent for Microsoft SQL Server Options › Log Truncation Options

Log Truncation Options

Log Truncation Options are accessible from the Database Level/Agent Options and Global Options/Agent Options dialogs:

• Remove inactive entries from transaction log, after backup--(Truncation) Truncates the Transaction Log files, removing entries included in the backup so that the space in the files can be reused. This is the default option.
• Do not remove inactive entries from transaction log, after backup--(No truncation) Retains backed up log entries after backup. These entries will be included in the next Transaction log backup.
• Back up only the log tail and leave the database in unrecovered mode--(No recovery) Backs up the log and leaves the database in a restoring state. This option is available for Microsoft SQL Server 2000 or later. Use this option to capture activity since the last backup and take the database offline prior to restoring or repairing it.

  The Log Truncation Options are available only when the selected Backup Method is Transaction Log, or when the Backup Transaction Log After Database option is checked.

  Important! Do not use the "Backup only the log tail and leave the database in unrecovered mode" log truncation option to back up the Arcserve Database. Performing a backup with this option causes the database to be placed in an offline status, and you can lose the ability to find the backups of the Arcserve Database in order to perform a restore and bring the database online. If you perform a backup of the Arcserve Database using this option, you can use Arcserve Database Recovery Wizard to recover the Arcserve Backup database and bring it back online.

Log Truncation Options are not affected by the Override Global Options setting on the Database Level Agent Options dialog. If Transaction Log or Backup Transaction Log After Database is selected for the database, the database Log Truncation Options are used.