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how_to:restore_a_database_backup

Restore a database backup

By default VPOP3 makes a daily backup of the VPOP3 database to a file 'DBBACK-n.DMP' in the VPOP3 installation directory (it is possible to change this in the settings). These are cycled on a weekly basis so you will usually have the last seven days' worth of backups. These can be useful if the database gets damaged somehow.

If you have a valid backup of the PostgreSQL database used by VPOP3, you can restore it by performing the following steps:

VPOP3 v5 or later

  1. Open a command prompt, and go to the VPOP3 directory
  2. If you are restoring the backup over an existing VPOP3 database (especially if the database files are damaged) you will need to DROP the database first.
    1. To do this, run pgsql\bin\dropdb -U postgres -p 5433 vpop3. When it prompts for the password enter the PostgreSQL master password - default pgsqlpass.
  3. Run pgsql\bin\pg_restore -U postgres -C -p 5433 -v -j 4 -d postgres <filename> where <filename> is the database backup you want to restore. When it prompts for a password enter the PostgreSQL master password - default pgsqlpass

VPOP3 v3 or v4

  1. Open a command prompt, and go to the VPOP3 directory
  2. If you are restoring the backup over an existing VPOP3 database (especially if the database files are damaged) you will need to DROP the database first.
    1. To do this, run pgsql\bin\dropdb -U postgres vpop3. When it prompts for the password enter the PostgreSQL master password - default pgsqlpass.
  3. Run pgsql\bin\pg_restore -U postgres -C -v -d postgres <filename> where <filename> is the database backup you want to restore. When it prompts for a password enter the PostgreSQL master password - default pgsqlpass
how_to/restore_a_database_backup.txt · Last modified: 2018/11/14 10:45 (external edit)