VMware 2V0-15.25 - VMware Certified Professional - VMware Cloud Foundation 9.0 Support

In VMware Cloud Foundation, deletion of a workload domain requires that VCF Operations can correctly discover and process the NSX components attached to that domain. The workload domain delete workflow explicitly includes removal of the NSX Manager and NSX Edge components associated with the domain, unless those NSX components are shared.

In earlier and current VCF guidance, VMware state that NSX Edge clusters for a workload domain must be removed using the documented/VCF-aware method (for example, using the NSX Edge removal process referenced in KB 78635, not by deleting objects directly in NSX Manager). If an administrator deletes theNSX Edge cluster directly in NSX Manager, the VCF inventory and orchestration logic still “believes” the Edge cluster exists. When the workload domain delete workflow reaches the stage“Gather input for deletion of NSX component”, it queries NSX / internal state for Edge cluster data. Because the underlying object has been manually removed, the returned structure is null, which results in an internal“Cannot read the array length because "<locall9>" is null”style error.

Using theNSX Edge Cluster Deployment Removal Toolas per documentation keeps VCF and NSX in sync and is thesupportedpath, so option A is not the likely cause. Network pools and shared NSX Manager configurations do not match the specific NSX-component array/null condition described.

When importing an existing vSphere environment into VMware Cloud Foundation (VCF) as a workload domain, several strict prerequisites must be met. One of the key requirements documented in VCF 9.0 is that allVMkernel adapters (vmk ports)used for vSAN, vMotion, management, or other system trafficmust have statically assigned IP addresses. DHCP-assigned VMkernel IPs arenot supportedfor VCF workload domain bring-up or import operations.

In the provided scenario, the environment includes:

vSphere 8.0 U3

A 3-node vSAN OSA cluster

Two VDS switches

VMkernel adapters using DHCP

Before VCF can successfully validate and import the environment, the administrator must convert these VMkernel interfaces tostatic IP addressing. VCF uses IPAM assumptions and deterministic host networking configurations; DHCP introduces variability incompatible with automated lifecycle operations.

Option A (consolidating VDS) is unnecessary—VCF supports multiple VDS configurations during import.

Option B (upgrading to vSphere 9.0) is not required for import.

Option D (convert OSA to ESA) is impossible pre-import and not required—VCF supports OSA clusters.

AvSAN cluster network partitionoccurs when vSAN nodes cannot communicate over the designated vSAN network. In VMware Cloud Foundation workload domains, the vSAN network relies onL2 adjacency, consistent VLAN configuration, and stable multicast/BUM behavior (in older versions). VCF 9.0 uses unicast-mode vSAN, so multicast-related issues (such as IGMP snooping configuration) are no longer relevant.

A network partition can occur when theVLAN ID on the physical switch port differsfrom the VLAN configured on the vSphere Distributed Switch (VDS) for the vSAN VMkernel adapters. The documentation emphasizes thatconsistent VLAN configuration across the physical and virtual networkis required for proper vSAN cluster communication. If a switch port is reconfigured—intentionally or accidentally—to use a different VLAN, the node becomes isolated from the rest of the vSAN cluster, causing:

"vSAN cluster partition" warnings in vCenter

degraded performance

objects marked asnon-compliant

resyncs that cannot complete

Option A (IGMP snooping) does not apply because modern vSAN uses unicast, not multicast.

Option C (Jumbo frames) would cause packet loss only if inconsistently configured, but it doesnotcause a full network partition.

Option D (vSAN Witness on vMotion) is relevant only for stretched clusters and does not cause a partition in a standard four-node cluster.

In VMware Cloud Foundation 9.0, VCF Operations (vROps-based) usespoliciesto control which alerts, symptoms, and metrics are evaluated for a given object. Creating an alert definition and symptom alone is not sufficient; the alert must beassociated with and enabled in a policythat is actively applied to the target object (in this case, a Virtual Machine). The documentation shows that when you create an alert definition, there is an explicitPolicies step, where you select the policy (for example, the default policy) so that the alert becomes active for objects governed by that policy.

The metric “Read Latency (ms)” is valid for virtual-machine–related objects: VCF Operations documents Read Latency metrics at the VM disk and VM–datastore link level (for Disk and Datastore metrics on Virtual Machines). Therefore, option B (metric not applicable) is incorrect. No requirement exists that such a performance alert must be forwarded from VCF Operations for Logs (D); log-based alerts are a separate alert type.

If the alert definition is not enabled in the effective policy for that VM, VCF Operations will not evaluate the symptom or generate the alert, and it will not appear in the alert pane—even though the definition technically exists. This matches optionCexactly.

When deploying a new workload domain in VMware Cloud Foundation (VCF), only ESXi hosts that fully meetall pre-requisitesare displayed in the VCF Operations UI for selection. Although all six hosts appear in theUnassigned Host Inventoryin vCenter, VCF performs additional validation before making them selectable for workload domain deployment.

One of the mandatory requirements for any vSAN-enabled workload domain is that the ESXi hosts must be associated with aNetwork Pool configured for vSAN traffic. A network pool defines the host network configuration (VLANs, MTU, NIC mapping) used during domain deployment.

If the two missing hosts are associated with a network pool thatdoes not have vSAN traffic enabled, or are associated withno network pool at all, VCF willexcludethem from the workload domain deployment wizard. This is documented behavior: VCF filters out hosts when required network intents—such as vSAN—are not present.

Other options are incorrect:

A. Management port group enabled for vSAN traffic— vSAN shouldneverrun on the management PG.

B. FTT setting— Has no effect on host visibility; applies only after deployment.

C. Disk partitions— Affects vSAN disk claim but doesnotprevent host selection in VCF.

A Comprehensive and Detailed Explanation: When enabling vSphere Supervisor with NSX Classic (using the traditional NSX-T Data Center networking stack rather than the newer NSX VPC mode), the vSphere Workload Management wizard filters the list of available NSX Edge Clusters to ensure they are explicitly designated for use with Kubernetes workloads.

The "WCPReady" Tag Requirement: The primary mechanism vCenter uses to identify a valid, compatible Edge Cluster for Workload Management is a specific tag on the NSX Edge Cluster object. This tag must be WCPReady (case-sensitive).

Symptoms: If this tag is missing—which often happens if the Edge Cluster was created manually in NSX Manager rather than through the SDDC Manager automation—the validation process will fail to find any usable clusters. This results in the specific error message: "No valid edge cluster for VDS [UUID]", or simply an empty list of compatible clusters in the wizard.

Resolution: The administrator must log in to the NSX Manager, navigate to System > Fabric > Nodes > Edge Clusters, select the target cluster, and manually add the tag WCPReady (often with the scope "Created for", though the tag itself is the critical filter).

Why other options are incorrect:

B: Large Edge nodes are actually a requirement for vSphere Supervisor (Small/Medium are typically unsupported for this role), so deploying them as Large would make the cluster compatible, not incompatible.

C: vSphere Supervisor fully supports Distributed Connectivity (connecting directly to the VDS), so Central Connectivity is not a hard requirement causing this specific error.

D: While AVI (NSX Advanced Load Balancer) is a supported load balancer, the "No valid edge cluster" error occurs during the Edge Cluster discovery phase, preceding the load balancer configuration.

In VMware Cloud Foundation 9.0 Automation, every Organization requires a properly configured Networking Configuration for each Region in which it operates. This configuration step—performed by the Provider Administrator—creates the NSX Project corresponding to the Organization, enabling Namespace creation, VPC visibility, and workload provisioning.

The error “Failed to list VPC after selecting a region” combined with the absence of an NSX Project in NSX Manager is a direct indicator that the Organization’s Networking Configuration was never initialized. VCF Automation automatically creates the NSX Project only when the Provider Admin completes this step.

Option B is invalid because the Organization Administrator cannot create NSX Projects manually; they are system-generated during networking setup.

Option C is incorrect because role assignment affects administrative permissions, not NSX project creation.

Option D is also incorrect—the Organization Admin cannot create a VPC until the NSX Project exists.

This issue stems from an incorrect role assignment during the user creation process in VMware Cloud Director (VCF Automation).

Organization Administrator Role (Option D): This role grants full control, including visibility of the Administration tab (to manage users, groups, and settings), Data Centers, and Monitor tabs. If the user were an Admin, they would see all tabs.

Organization Auditor Role (Option A): This is a read-only role, but by definition, an Auditor can view anything an Organization Administrator can see (including the Administration settings), just without edit rights. Therefore, an Auditor would still see the Administration tab.

Organization User Role (Option B): This is a consumer-level role designed for deploying and managing vApps. By default, this role does not have access to the Administration tab or high-level organization settings. If the organization is new and has no vApps or VDCs populated yet, a user with this role might see a very restricted view (effectively just a dashboard or "Overview") because they lack the rights to see the administrative configuration menus.

Conclusion: The fact that the "Administration" tab is missing (implied by "only Overview is visible") identifies the user as an Organization User (or a restricted Custom Role) rather than an Administrator or Auditor.