Disaster Recovery

The CenturyLink Cloud provides integrated and custom solutions to protect and rapidly recover data. This guide outlines what is included in the CenturyLink Cloud, and highlights key considerations that must be evaluated to maintain system availability during a disaster event. An overview of CenturyLink SafeHaven Disaster Recovery as a Service (DraaS) is highlighted as well.

A data center disaster must be declared by CenturyLink Cloud before restoration of services can begin. Scenarios for a data center disaster include, but are not limited to fire, flood, data center destruction, etc. To summarize, the data center is gone and is not coming back.

Business critical applications should be built in multiple data centers, with failover tested and verified prior to a disaster situation.

Database Backup

Cloud Server backups do not allow for a crash consistent database backups due to the nature of their design (in-flight transactions etc.). To mitigate this, there are two recommended methods to achieve crash consistent database backups on the platform.

  1. Leverage integrated database backup tool kits that ship with database software such as Oracle RMAN or SQL Maintenance. These tools create backups of logs and databases to localized or remote volumes in a scheduled manner. Typically, localized database volume backups are acceptable for smaller environments. Larger database environments may benefit from implementing a storage server, accessible via CIFS or NFS, to centrally house all database backups. There are numerous 3rd party database backup products available that can also be leveraged in this fashion.
  2. For Microsoft SQL environments, the option to use 3rd party backup software backed by Object Storage is available. These tools typically allow for hot backups using VSS of SQL server transaction logs and databases to a centralized repository. Clients can control the frequency of database backups (including logs) and can achieve very aggressive recovery point objectives (RPO) and recovery time objectives (RTO) for their mission critical SQL database services.

SafeHaven Disaster Recovery

Often business critical applications require clearly defined Recovery Point Objective (RPO) and Recovery Time Objective (RTO) times. CenturyLink SafeHaven enables protection of critical applications from unexpected unavailability. Additionally, SafeHaven offers advanced features like Live Failback, Live Test Failover, Custom Check Point Intervals, Protection Groups, and Runbook Automation.

SafeHaven Disaster Recovery Reference Architecture diagram

Related Products

Disaster Recovery

Affordable protection for your on-premise data & production VMs. Avoid the enormous costs of IT downtime and data loss with SafeHaven for CenturyLink Cloud.

Cloud Servers

Enterprise-grade cloud servers ready for legacy and greenfield business apps.

Backups & Block Storage

Persistent, high-performance storage for every enterprise scenario. Easily add backup & DR capabilities as needed.

Object Storage

For large-scale cloud applications, store and manage your files in a highly-scalable, fault-tolerant distributed database.

Firewall

Connect networks within a particular data center through the use of configurable firewall policies, and create firewall policies that connect different data centers.