
Following conditions should be met for successful restore using the Recover PostgresSQL
database using write ahead logs (WAL) option.
• The backup archive you restore from should be the latest backup taken. This is necessary
because the current WAL files are with respect to the latest backup date and time. If you
choose an old backup archive the entries in the WAL file can not be restored.
• The application should not be reinstalled after backup. If you reinstall the application
anytime after backup, the WAL files stored by database get deleted and hence you are
not able to restore the database in the current state. In such case, the database is restored
to the same state as it was during backup. The restore utility does not report any error
even if the WAL files are not in expected sequence.
Note:
You can use the NM Backup Utility to backup the data and settings of Network
Management Console, Provisioning and Installation Manager for Gateways, and
Provisioning and Installation Manager for IP Office applications. Of these only Network
Management Console use the PostgreSQL database. Recover PostgresSQL
database using write ahead logs (WAL) option has no significance for Provisioning
and Installation Manager for Gateways and Provisioning and Installation Manager for
IP Office applications restore.
Note:
Do not select the option Recover PostgresSQL database using write ahead logs (WAL) if
the last restore attempt failed.
Introduction to the Avaya NM Easy Restore Utility
172 Avaya Integrated Management Network Management Console User Guide November 2010
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