The issue of seeing multiple volumes after creating just a single volume on the MSA is likely due to a lack of zoning on the Fibre Channel switches. Zoning is a method used in Fibre Channel networks to segment a fabric into smaller, manageable zones, which helps in controlling access between devices. By enabling zoning on the SN3000B switches, the customer can isolate the connections and ensure that only the desired host can see specific volumes. This prevents the scenario where multiple volumes are visible to a host that should only have access to one.
Reference:
HPE MSA Storage Overview
HPE B-series SN3000B Switches

During an Intelligent (One-Click) Update on HPE Alletra dHCI, VMware vCenter is one of the components that will need to be updated manually. While the One-Click Update feature automates the updating process for various components like HPE Storage Connection Manager, Array OS, and VMware ESXi, vCenter requires a manual update because it serves as the central management hub for the VMware environment. Ensuring that vCenter is up-to-date is crucial for maintaining compatibility and stability across the entire infrastructure.
For more details, refer to:
HPE Alletra dHCI Overview