IT Infrastructure and Data Centre Course

Lesson 1 • Physical Infrastructure Components

Surveys racks, cabinets, cabling, and raised-floor systems as the physical backbone of a data centre. Provides context for later chapters on power and cooling.

Lesson 2 • Logical Infrastructure Overview

Introduces IP addressing, VLANs, and DNS as the logical layer that enables communication between physical components. Prepares students for deeper networking study.

Lesson 3 • Data Centre Tiers and Standards

Explains the four-tier classification system for data centres and the uptime guarantees each tier implies. Connects tier selection to business continuity requirements.

Lesson 1 • Backup Generator Systems

Details diesel and natural-gas generators, automatic transfer switches, and fuel management for extended outages. Reinforces redundancy concepts from the tier framework.

Lesson 2 • Uninterruptible Power Supplies

Explains UPS topologies, battery technologies, and runtime calculations critical to bridging utility outages. Links UPS selection to tier requirements introduced in Chapter 1.

Lesson 3 • Power Distribution Units and Circuits

Examines rack-level PDUs, branch circuit protection, and power strip configurations that deliver power to individual servers. Introduces power capacity planning at the rack level.

Lesson 4 • Power Efficiency and PUE Metrics

Introduces Power Usage Effectiveness as the industry benchmark for data centre energy efficiency. Connects power design decisions to operational cost and sustainability goals.

Lesson 1 • Heat Generation and Thermal Basics

Explains how servers convert electrical power to heat and how BTU and kW metrics quantify thermal load. Provides the physics foundation for all cooling design decisions.

Lesson 2 • Precision Cooling and Liquid Cooling

Introduces in-row cooling, rear-door heat exchangers, and direct liquid cooling for high-density compute environments. Prepares students for modern GPU and HPC workloads.

Lesson 3 • Computer Room Air Conditioning

Covers CRAC and CRAH unit types, airflow patterns, and placement strategies for traditional raised-floor environments. Connects to physical infrastructure concepts from Chapter 1.

Lesson 4 • Hot Aisle and Cold Aisle Containment

Details containment strategies that separate hot exhaust from cold supply air to maximise cooling efficiency. Directly improves PUE metrics introduced in Chapter 2.

Lesson 1 • Network Redundancy and High Availability

Details dual-homing, multi-chassis link aggregation, and failover protocols that eliminate single points of failure. Reinforces the redundancy principles established in the power chapter.

Lesson 2 • Software-Defined Networking Basics

Introduces SDN controllers, overlay networks, and network automation as modern alternatives to manual CLI configuration. Sets the stage for automation topics in later chapters.

Lesson 3 • Data Centre Network Topologies

Compares three-tier and spine-leaf architectures and explains when each topology suits specific traffic patterns. Builds on logical infrastructure concepts from Chapter 1.

Lesson 4 • Routing and Layer 3 Design

Explains inter-VLAN routing, dynamic routing protocols, and BGP peering for external connectivity. Provides the routing knowledge required for firewall and security chapters.

Lesson 1 • High Availability and Clustering

Explains hypervisor HA clusters, distributed resource scheduling, and fault tolerance for mission-critical VMs. Reinforces redundancy themes from power and networking chapters.

Lesson 2 • Server Management Interfaces

Covers out-of-band management controllers, IPMI, and remote console access for lights-out data centre operations. Enables remote administration without physical presence.

Lesson 3 • Server Hardware Architecture

Examines CPU, memory, storage, and I/O subsystems in rack, blade, and modular server form factors. Provides the hardware baseline for virtualization and storage chapters.

Lesson 4 • Virtual Machine Lifecycle Management

Covers VM provisioning, snapshots, cloning, and migration as the operational tasks that define day-to-day virtualization management. Connects to storage and networking chapters for full context.

Lesson 1 • Network-Attached Storage and File Services

Covers NFS and SMB protocols, NAS appliance architecture, and file-level access patterns for shared workloads. Complements SAN block storage with file-sharing capabilities.

Lesson 2 • Storage Technology Fundamentals

Compares HDD, SSD, and NVMe media types and explains RAID levels as the foundation of storage reliability. Provides the hardware context for SAN, NAS, and object storage sections.

Lesson 3 • Storage Area Networks

Details Fibre Channel and iSCSI SAN architectures, zoning, and LUN masking for dedicated block storage. Builds on networking and server chapters to show end-to-end storage connectivity.

Lesson 4 • Data Protection and Backup Strategies

Explains backup types, RPO/RTO targets, snapshot-based protection, and replication for comprehensive data protection. Ties storage design decisions to business continuity requirements.

Lesson 1 • Network Security Architecture

Details firewall placement, DMZ design, intrusion detection, and micro-segmentation for logical protection of data center traffic. Builds directly on the network topology knowledge from Chapter 4.

Lesson 2 • Identity and Access Management

Explains role-based access control, privileged access management, and multi-factor authentication for data center systems. Reduces insider threat and credential-based attack risk.

Lesson 3 • Compliance Frameworks and Auditing

Maps common data center compliance requirements to technical controls and explains audit evidence collection. Prepares students to demonstrate regulatory readiness to auditors.

Lesson 4 • Data Encryption and Key Management

Covers encryption at rest, in transit, and key management systems that protect data across storage and network layers. Connects encryption requirements to compliance frameworks.

Lesson 1 • Infrastructure Monitoring and Alerting

Covers SNMP, syslog, and agent-based monitoring tools that provide real-time visibility into infrastructure health. Connects monitoring data to incident response and capacity decisions.

Lesson 2 • IT Service Management Fundamentals

Introduces incident, problem, and change management processes as the operational framework for data center teams. Provides the process structure that governs all operational activities.

Lesson 3 • Capacity Planning and Forecasting

Explains how to analyze utilization trends, model growth scenarios, and produce capacity reports for leadership. Integrates data from power, cooling, compute, and storage chapters.

Lesson 4 • Runbooks and Standard Operating Procedures

Guides students in writing clear runbooks and SOPs that enable consistent execution of routine and emergency tasks. Reduces human error and accelerates onboarding of new staff.