MIRROR

onconfig.std value

0

range of values

0 = disable mirroring
1 = enable mirroring

takes effect

When the database server is shut down and restarted

utilities

onstat -d flags field (See page onstat -d.)

refer to

The following topics in the IBM Informix Administrator's Guide:

• Mirroring critical data in the chapter on where is data stored
• Enabling mirroring in the chapter on using mirroring

The MIRROR parameter indicates whether mirroring is enabled for the database server. It is recommended that you mirror the root dbspaces and the critical data as part of initialization. Otherwise, leave mirroring disabled. If you later decide to add mirroring, you can edit your configuration file to change the parameter value.

You do not have to set the MIRROR configuration parameter to the same value on both database servers in the high-availability data-replication pair. You can enable or disable mirroring on either the primary or the secondary database server independently. Do not set the MIRROR configuration parameter to 1 unless you are using mirroring.