A High Availability cluster over Ethernet is a type of cluster setup where the communication between redundant nodes as well as the data transfer, are being realized over an Ethernet connection in an automatic failover configuration.

Disaster Recovery is one of the most essential strategies for securing lost data against disasters. It includes all processes and procedures that are performed in order to prevent large failures and to avoid the consequences by keeping copies of data. With a consistent strategy, you are able to quickly recover business-critical files and applications of your IT infrastructure - ensuring business continuity and minimization of data loss.

Disaster Recovery is one of the most essential strategies for securing lost data against disasters. It includes all processes and procedures that are performed in order to prevent large failures and to avoid the consequences by keeping copies of data. With a consistent strategy, you are able to quickly recover business-critical files and applications of your IT infrastructure - ensuring business continuity and minimization of data loss.

The Failover feature provides High Availability of data. In an iSCSI Failover setup of two servers, data is saved on both servers simultaneously. When one system fails, its processes and all resources are being relocated to and restarted on the second node. The Active-Passive setup allows having all volumes active on one node (the primary node), while the other node has all passive copies and takes over the tasks in case of an emergency (the secondary node). A load-balanced Active-Active Failover on the other hand, doesn’t have a primary or secondary node. It adds extra performance by enabling the user to decide which volumes are active on which node. The failover process is the same, but the servers are able to utilize their full network performance and eliminate the unnecessary cost of idle hardware.

High Availability through Failover is crucial for many companies. Despite using high-quality hardware and superior connections, still any server can crash, leading to data loss. Providing High Availability can be tricky, but fortunately Open-E DSS V7 is able to work with a second node. It keeps data redundant and when aware of the original node’s failure, the redundant node continues serving clients; effectively replacing the missing node. This process is commonly known as Failover.