Cluster HA Verification of IBM Spectrum NAS
Before starting this experiment, please make sure that you have completed the experiment "Expanding Capacity of Cluster System Nodes" so that the cluster has been expanded to cover 6 nodes.
IBM Spectrum NAS has excellent reliability. It adopts a symmetrical architecture so that each node runs the same small but efficient system cores. Combined with the data redundancy capability, this architecture helps avoid any single point of failure, enhancing reliability. With the erasure code capability, the data striping can be achieved on multiple nodes and locations, providing data redundancy and protection. In case of any hardware failure with a node, a notification will be sent to other nodes in the same cluster, and then the parallel working will be started to re-create any lost data, ensuring that no impact is brought to the business. This experiment will lead you to get through that the NAS cluster provides NAS-related services normally even when 2 nodes are out of order. (duration: 15-20 min)
IBM Spectrum NAS 1.7.0 software
VMware vSphere 6.5
- CenterOS 7 (VM)
- Windows Server 2008 R2 (VM)