18/07: Disaster Recovery (DR) Deployment Models
Any Disaster Recovery (DR) solutions can be mapped into one of the following deployment models:
The diagram suggests the factors that needs to evaluated to select a DR deployment model for an application platform. In an enterprise, you will find multiple DR deployment models to meet needs of the entire applications portfolio economically.
- Fault Tolerant: No impacts to the services to users in the event of disaster scenario and users consumes services actively from multiple data centers all the time. This model is also known as multi site active-active deployment.
- Auto Failover:In the event of disaster scenario users are routed to the disaster recovery site. This model is also known as multi site active-hot-standby deployment.
- Coordinated Fail-over: Someone needs to call out that it is a disaster event and services platform administrators’ runs configurations updates to make services available at the disaster recovery site and then update configurations to route the users at the disaster recovery site. This model is also known as multi site active-passive deployment.
- Backup & Build: You will stand up services platform systems from backup and build at the disaster recovery site. You will run minimum verification to ensure that services for users are restored as expected and then manually route the users at the disaster recovery site. This model is also known as multi site active-cold deployment.
The diagram suggests the factors that needs to evaluated to select a DR deployment model for an application platform. In an enterprise, you will find multiple DR deployment models to meet needs of the entire applications portfolio economically.
Disclaimer
The thoughts expressed in the blog are those of the author and do not represent necessarily the official policy or position of any other agency, organization, employer, or company. Assumptions made in the study are not reflective of the point of view(s) of any entity other than the author. Since we are critically thinking human beings, the point of view(s) is always subject to change, revision and rethinking at any time. While reasonable efforts have been made to obtain accurate information, the author makes no warranty, expressed or implied as to its accuracy.
The thoughts expressed in the blog are those of the author and do not represent necessarily the official policy or position of any other agency, organization, employer, or company. Assumptions made in the study are not reflective of the point of view(s) of any entity other than the author. Since we are critically thinking human beings, the point of view(s) is always subject to change, revision and rethinking at any time. While reasonable efforts have been made to obtain accurate information, the author makes no warranty, expressed or implied as to its accuracy.