Workflow optimization based workload domain create or add cluster fails during the validation with error - Invalid disk group type, as below.
/var/log/vmware/vcf/domainmanager/domainmanager.log
2023-02-21T14:35:52.999+0000 ERROR [vcf_dm,2b22d9ce17be7c74,90c6] [c.v.v.v.c.f.a.WaitForVxRailFirstRunToComplete,dm-exec-15] VxRail first run workflow is failed, errors : \{configure.nonform.validation.multiDG.disk_group_type=[Invalid disk group type 2804.]}
2023-02-21T14:35:53.000+0000 ERROR [vcf_dm,2b22d9ce17be7c74,90c6] [c.v.e.s.o.model.error.ErrorFactory,dm-exec-15] [UJT6PS] VXRAIL_FIRST_RUN_FAILED VxRail first run workflow is failed, errors : \ {configure.nonform.validation.multiDG.disk_group_type=[Invalid disk group type 2804.]} com.vmware.evo.sddc.orchestrator.exceptions.OrchTaskException: VxRail first run workflow is failed, errors :{configure.nonform.validation.multiDG.disk_group_type=[Invalid disk group type 2804.]}
If the user chooses SDDC Manager UI or workflow optimization script step-by-step input, then for Dell 15G server models, VCF chooses the default disk group type. But the default disk group type may change depending on other hardware factors.
VMware is aware of this issue and working to resolve this in a future release.
Use workflow optimization script and VxRail json input with valid disk group type.
Refer Create a VxRail VI Workload Domain Using the Workflow Optimization Script