This section describes the fail safety mechanisms in cloud deployments and on-premises installations of Exasol.
If a hardware component or server where a cluster node is running fails, Exasol detects that a node is no longer available and triggers an automatic failover procedure. Provided that the volumes have been configured with redundancy, the metadata on each node is replicated to mirrors on neighboring nodes. This means that data integrity is preserved on node failure.
This section covers the following topics: