INF-01
Infrastructure and modernisation
Infrastructure mapping and risk analysis of the existing estate
Who it's for: an IT department whose datacenter and secondary site have grown project by project without up-to-date architecture documentation, and which needs an assessment established by an expert third party.
The problem: an infrastructure rarely works the way it is described. The diagrams date from the original project, successive changes were never folded back in, and nobody holds a consolidated view of the flows, the dependencies and the points of failure. The day an investment has to be arbitrated, a migration launched, or an auditor answered, that view is missing.
What I do
- inventory of hardware, software and licences, on both the production and the secondary site
- reconstruction of the actual architecture: compute, storage, SAN, network, virtualisation, backup
- mapping of inter-site flows and of dependencies between components
- identification of single points of failure and of accumulated roles
- EOS / EOL / EOSL lifecycle matrix and vendor support constraints
- analysis of gaps against vendor best practice and against continuity requirements
- ranked risk analysis, technical and contractual
Deliverables
- high-level design (HLD): overview, roles, flows, design principles
- low-level design (LLD): inventory, configurations, addressing, zoning, versions
- lifecycle and support matrix
- risk matrix ranked by criticality and by likelihood
- analysis report with prioritised recommendations and evolution scenarios
What changes
you hold an architecture record that stands up to scrutiny, and a reading of the risks by a third party — which does not carry the same weight in committee as an analysis produced in-house.
Prerequisites: read access to the administration consoles, interviews with the infrastructure contacts, existing documentation even if partial.
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