An administrator is tasked to upgrade a VMware Cloud Foundation (VCF) environment from 5.2 to 9.0. During preparation, the administrator sees only the SDDC Manager 9.0 bundle available. Why are no other bundles available?

The VMware Cloud Foundation (VCF) upgrade process is strictly sequential and orchestrated by the SDDC Manager. To maintain the integrity and compatibility of the integrated software stack, components must be upgraded in a specific, dependency-aware order. The SDDC Manager is the first component in the management domain that must be upgraded. Once the SDDC Manager is successfully updated to the new version, it will then present the appropriate upgrade bundles for the subsequent components (e.g., vCenter Server, NSX, ESXi) in the correct sequence.

A. An offline repository was used for upgrade bundles. The download method, whether online or via an offline repository using the Bundle Transfer Utility, does not alter the mandatory upgrade sequence enforced by SDDC Manager.
B. A proxy server was used to download bundles. A proxy server is a network configuration detail for internet access. It does not influence the internal logic of the SDDC Manager that dictates the required upgrade order.
C. The ASYNC tool must be used to download all required bundles. The Async Patch Tool is used for applying out-of-band security patches, not for performing major version upgrades of the entire VCF stack.

1. VMware Cloud Foundation Lifecycle Management Documentation: The official guide consistently outlines the upgrade sequence for VCF. It specifies that the upgrade process for the management domain begins with the SDDC Manager.

Source: VMware Cloud Foundation 5.1 Lifecycle Management, "Upgrading VMware Cloud Foundation" section, "Upgrade Order of VMware Cloud Foundation Components" subsection. This section explicitly states, "You upgrade the management domain components first, starting with SDDC Manager."

2. VMware Cloud Foundation Operations Guide: This guide reinforces the role of SDDC Manager in orchestrating all lifecycle management tasks, including upgrades. The process always starts with updating the orchestrator itself.

Source: VMware Cloud Foundation 5.0 Operations Guide, Chapter 4: "Lifecycle Management of VMware Cloud Foundation," section "VMware Cloud Foundation Upgrade." The documentation details that SDDC Manager manages the download and application of bundles in a prescribed order.