Truncating the transaction log

Use the NetBackup Database Administration utility to truncate the transaction log.

Truncating the transaction log forces a full, hot catalog backup the next time any schedule of the catalog backup policy is due. Without a full, hot catalog backup, a gap would exist in the transaction logs due to the truncation and an error during catalog recovery would occur.

If the next scheduled hot catalog backup is a differential incremental, a backup of all of the relational database files is included.

To truncate the transaction log (NBDB.log and BMRDB.log)

  1. Start the NetBackup Database Administration utility that is located in the following directory:

    InstallPath\VERITAS\NetBackup\bin\NbDbAdmin.exe

  2. Enter the database login password and click OK.

    See Using the NetBackup Database Administration utility.

  3. Select the Tools tab.

  4. In the Transaction Log section, click Truncate.

  5. In the Truncate Transaction Log dialog box, browse to a Temporary Directory For Truncation where the log is copied. Make sure that enough space is available for a copy of the existing transaction log before it is truncated.

  6. Click OK. After the transaction log is successfully copied and truncated, the temporary copy is deleted.

More Information

Setting the transaction mode for NBDB.log and BMRDB.log

General tab of the NetBackup Database Administration utility

Tools tab of the NetBackup Database Administration utility