The level of a design at which the conceptual model becomes a set of components with counts and relationships, plus selected models such as the deployment models of a Design Blueprint. Physical details (hardware, sizes, VLAN IDs, addresses) are deliberately left for the physical design.
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Each book explains Logical design in context, with comparison tables and the common traps.
Terms in this definition
- Conceptual model
A view of the solution that leaves technology out, describing its capabilities, who will use it, the qualities it needs and the boundaries constraints impose. Business stakeholders agree it ahead of the logical and physical designs, and it names no products, sizes or addresses.
- Set
Secret permission in Key Vault for writing secrets; some older material refers to it as Create.
- Model deployment
Inside a resource, each deployment is a named copy of a Foundry model with its own TPM quota and deployment type. Requests identify the model by this deployment name.
- Design blueprint
Ready-made, opinionated fleet architecture from the VCF Design guide covering a typical layout, say one small site or many sites over several regions. Use it unchanged, or swap individual models from the design library.
- Physical
Describes the concrete, real-world parts that put a logical architecture into effect.
- VLAN
Layer 2 broadcast domain tagged using 802.1Q. In VCF they carry TEP, vSAN, vMotion and management traffic, and NSX can back segments with them.
- IDS
Security tooling that observes network traffic. Failed migrations can result if it, or a firewall, stops vMotion ports getting through.
- Physical design
The build specification for a VCF deployment, captured in the VCF Planning and Preparation Workbook and consumed by the VCF Installer. It realises the logical design by fixing exact products, versions, hardware and quantities, and values such as VLAN IDs, subnets, IP addresses, DNS names, MTU, certificates, rack placement and appliance sizes.
Related terms
- Logical
Independent of any implementation. Each logical design is made real through a physical counterpart.
- Single point of failure
Any part of a system that can halt a service simply by failing. VCF designs remove many of them, for instance by giving each traffic type two physical NICs, and any that remain, such as a one-node appliance or a single identity broker for the fleet, are logged as risks in the logical design.