Final answer:
The purpose of the command 'diagnose sys ha dump-by vcluster' is to dump information related to virtual clustering in Fortinet products. It helps diagnose and troubleshoot issues in the virtual clustering setup.
Step-by-step explanation:
The purpose of the command diagnose sys ha dump-by vcluster is to dump information related to virtual clustering. This command is used in Fortinet products to generate a technical report containing information about the virtual clustering configuration, cluster member status, synchronization status, and other relevant details.
Virtual clustering is a feature that allows multiple Fortinet devices to work together in a cluster, providing high availability and redundancy. By using this command, administrators can diagnose and troubleshoot issues related to the virtual clustering setup.
Other similar commands, such as diagnose sys ha full-config, provide additional information about the high availability (HA) settings status. So, option d) Check HA settings status is not the direct purpose of the diagnose sys ha dump-by vcluster command.