Optimizing Fault Tolerance

The NDPS Manager uses a database to store information about the printers it controls. This database is backed up and replicated in eDirectory^TM. The database is automatically backed up, by default, once a day. You can modify the backup options or manually backup the database using server console interface for the Manager.

If the database fails to load through normal mechanisms, you can retrieve the database from eDirectory and load the NDPS Manager on any other server in the eDirectory tree.

IMPORTANT:  You cannot restore a database from eDirectory to the same server that it was backed up from. In order to restore a database from eDirectory to its original source server, you must first restore it to a different server, and then back the database up to eDirectory from that server. You can then restore it to its original server.

Modifying the Database Backup Options

1. At the server console, go to the Available Options menu for the NDPS Manager.

2. Select NDPS Manager Status and Control > Database Options.

3. Modify the desired settings.

4. Escape back out to the Available Options menu.

Restoring a Database from eDirectory

1. At the server where you want to restore the database, enter

   load ndpsm /dbvolume

   See NDPS Manager Startup Switches for more information.

2. Select the name of the NDPS Manager whose database you want to restore.

   If the server with the original database is up and running, its name will appear in this menu. If the server is down, no server name will appear here. The only Source option available will be eDirectory (existing jobs will be lost).

3. Select the source of the backup you want to restore.

   In most cases, you will be selecting eDirectory as the source.

   You will be prompted to select a volume.

4. Select the volume where you want the database placed.

   The restored database is then copied to the location you selected.