Dell DX6004S Dell DX Object Storage Platform User’s Guide - Page 13
Redundant DX Cluster Services Nodes
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Redundant DX Cluster Services Nodes The Dell DX Storage Cluster supports redundant DX Cluster Services Nodes. In a redundant model, the active DX Cluster Services Node is configured as the primary node and the redundant node is configured as the secondary node, see Figure 2-2. The primary Cluster Services Node contains the cluster configuration files, active networking utilities, and active content router services. A manual failover process is required to demote the primary DX Cluster Services Node and promote the secondary DX Cluster Services Node. Since there is a combined virtual IP address for the primary DX Cluster Services Node, a failover to a redundant DX Cluster Services Node is transparent to all applications. When a failover is transparent, an IP address change is not required. However, the application services remain unavailable until the manual failover of the Cluster Services Node is complete. For more information, see the Cluster Services Installation and Configuration Guide at support.dell.com/manuals. DX Object Storage Platform Overview 13