Virtual Server in IT Operations Management

This curriculum spans the equivalent depth and breadth of a multi-workshop operational readiness program for virtual server environments, covering the design, deployment, and governance tasks typically addressed in enterprise infrastructure rollouts and internal capability builds.

Module 1: Virtual Server Architecture and Sizing

• Selecting appropriate virtual machine templates based on application workload profiles, including CPU-to-memory ratios and I/O patterns.
• Designing virtual server configurations that align with service-level agreements for performance and availability.
• Allocating virtual CPUs while accounting for hypervisor scheduling overhead and potential CPU ready time bottlenecks.
• Right-sizing memory allocation with consideration for memory ballooning, overcommitment policies, and application memory leaks.
• Choosing between thin and thick disk provisioning based on storage capacity planning and performance requirements.
• Integrating virtual machine firmware options (BIOS vs UEFI) with secure boot and OS compatibility constraints.

Module 2: Hypervisor Deployment and Configuration

• Standardizing hypervisor installation across physical hosts using automated deployment tools and configuration baselines.
• Configuring host networking with vSwitches, VLANs, and NIC teaming policies to ensure redundancy and throughput.
• Implementing consistent host firewall rules on hypervisors to restrict management interface access.
• Managing hypervisor updates and patches using maintenance windows and cluster evacuation procedures.
• Enabling and tuning CPU and memory resource schedulers based on workload criticality and contention.
• Integrating hypervisors with centralized logging and monitoring systems for audit and troubleshooting.

Module 3: Storage Integration and Performance Management

• Mapping virtual disks to appropriate storage tiers based on IOPS, latency, and redundancy requirements.
• Configuring storage multipathing to maintain connectivity during storage array or path failures.
• Monitoring datastore utilization and setting thresholds to prevent VM performance degradation due to space exhaustion.
• Implementing storage DRS or equivalent load balancing while managing cross-host vMotion overhead.
• Choosing between NFS, iSCSI, and Fibre Channel based on infrastructure complexity and performance SLAs.
• Managing snapshot policies to avoid performance impact and storage bloat during backup operations.

Module 4: Virtual Networking and Security

• Designing distributed virtual switch (DVS) topologies to support consistent network policies across clusters.
• Segmenting VM traffic using VLANs or VXLANs in multi-tenant environments to enforce isolation.
• Implementing distributed firewall rules at the vNIC level for east-west traffic control.
• Configuring network I/O control to prioritize critical VM traffic during congestion events.
• Integrating virtual switches with physical network infrastructure for end-to-end visibility and troubleshooting.
• Enforcing network security policies through VM port groups with MAC address and promiscuous mode restrictions.

Module 5: High Availability and Resilience Planning

• Configuring host and VM failover reservations in clusters to ensure capacity during hardware outages.
• Setting VM restart priorities to sequence application recovery based on business criticality.
• Implementing anti-affinity rules to distribute critical VMs across physical hosts for fault isolation.
• Testing HA failover scenarios without disrupting production workloads using isolated recovery zones.
• Integrating VM-level HA with application-aware monitoring to reduce false failover triggers.
• Designing stretched clusters across data centers while managing latency and split-brain risks.

Module 6: Backup, Recovery, and Disaster Preparedness

• Selecting image-level versus application-consistent backup methods based on recovery point objectives.
• Scheduling backup windows to minimize impact on VM performance and storage I/O.
• Validating backup integrity through periodic restore testing of critical virtual machines.
• Replicating VMs to disaster recovery sites using asynchronous replication with defined RPOs.
• Documenting recovery runbooks that specify VM startup order and network reconfiguration steps.
• Managing retention policies for backup copies in compliance with data governance requirements.

Module 7: Monitoring, Capacity Planning, and Optimization

• Establishing performance baselines for CPU, memory, disk, and network to detect anomalies.
• Using capacity forecasting tools to project resource needs and plan cluster expansions.
• Identifying idle or over-provisioned VMs for rightsizing or decommissioning.
• Correlating VM performance metrics with underlying physical host and storage health.
• Generating utilization reports for chargeback or showback in shared environments.
• Implementing automated alerts for threshold breaches with escalation paths to operations teams.

Module 8: Governance, Compliance, and Change Management

• Enforcing VM provisioning workflows through service catalog approvals and resource quotas.
• Tracking VM ownership and lifecycle status to prevent sprawl and unauthorized deployments.
• Applying configuration standards using templates and configuration management tools.
• Auditing VM changes against change control records to maintain compliance with regulatory standards.
• Managing access controls for vCenter and hypervisor administration using role-based permissions.
• Documenting architectural decisions and configuration changes in a centralized configuration management database (CMDB).