| Planning | Recovery | |
It is important to have a disaster recovery plan ahead of time for the CommServe as failures in the CommServe will bring all operations in the CommCell to a standstill.
Review the following to prepare for CommServe disaster recovery using a Warm site:
Disaster recovery involves the creation and maintenance of a disaster recovery site. Warm sites have the hardware and connectivity already established, which can make CommServe operations functional in the case of a disaster.
The disaster recovery site must contain a pre-staged CommServe with all the necessary software and applications installed. The standby CommServe can have the same host name or IP address of the CommServe at the production site. If the host name and IP address are different, you can obtain a Dual IP License instead of obtaining an additional license for the standby CommServe.
The Dual IP License has two IP addresses; a primary IP address for the production CommServe and a secondary IP address for the standby CommServe. This provides the system with the capability to automatically identify the appropriate CommServe when CommServe metadata is restored to the disaster recovery site. Contact your Software provider to obtain a copy of the Dual IP License before building the disaster recovery site.
Ensure that any update applied to the production CommServe is also applied to the standby CommServe.
Services should not run at the same time on both the production and standby CommServe. If both services are running, the two CommServes will try to communicate with the clients simultaneously.
You should perform frequent disaster recovery backups to a UNC path located at the disaster recovery site, at least on a day-to-day basis. This will help you secure and maintain the data required in the event of a disaster, such as the CommServe metadata, which is crucial for rebuilding a dedicated CommCell. The metadata can be restored using the CommServe Disaster Recovery Tool.
Disaster Recovery backups involve a minimum amount of data movement and data storage and hence can be scheduled to run several times a day. See Disaster Recovery Backup for more information.