Symptoms

When building the cluster with Dell PowerEdge 15G servers using VxRail public API /v1/system/initialize, it is mandatory to input disk_group_type value in the API request body.If the disk_group_type object is missing, the cluster deployment validation fails with error: " {"message": "Failed to create workflow instance: Input JSON is not valid. The invalid field is storage, error message is \"'encryption_enabled' is a required property\", path of error field is [storage].", "code": "20102003"}}]}" This error message is misleading, it does not tell the real cause that disk_group_type object is missing.

Cause

This is a code issue in the VxRail 8.0.200 release.It only impacts 15G cluster initial deployment, and will be fixed in future 8.0.x release.

Resolution

1. Call VxRail public API /v1/system/initialize/nodes to get the "disk_group_type" value from auto-discovered nodes.For example, below information can be found from the API output: "disk_group_config": { "recommendation": { "type": "2804", "description": "Up to 4 Disk Groups (up to 6 capacity drives and 1 cache drive per group)" }, "options": [ { "type": "2804", "description": "Up to 4 Disk Groups (up to 6 capacity drives and 1 cache drive per group)" } ] } 2. Add the "disk_group_type" value to the VxRail first run API request body under the "storage" section. (Pay attention, it is not under the "hosts-->storage" section.)For example: "storage": {"disk_group_type": "2804"} 3. Call first run API /v1/system/initialize again to build the cluster.

Support Cases