Enterprise virtualization

Ensure reliable data availability with real-time monitoring of storage capacity, disk performance, and hardware health across enterprise infrastructure.

Feature overview

OpManager Nexus brings full visibility into enterprise virtualization with multi-hypervisor monitoring, real-time topology insights, and intelligent fault management. By correlating VM performance, tracking migrations, and automating remediation workflows, it enables proactive issue resolution, efficient capacity planning, and streamlined operations across complex, distributed virtual infrastructures.

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Multi-vendor coverage

One console for every hypervisor in your environment

  • Monitor VMware ESX/ESXi, Microsoft Hyper-V, Nutanix, and Citrix XenServer host machines and their associated guest VMs from a single centralized dashboard.
  • Automatically discover all VMs in a host by simply entering the server hostname and credentials.
  • Perform agentless monitoring of all virtual devices using SNMP, WMI, or CLI.
  • Apply device templates in bulk to associate monitors across newly discovered VMs instantly.
  • Choose separate dashboard views per hypervisor — VMware vSphere, Hyper-V, or Xen while retaining a unified view across your entire virtual infrastructure.

VM Performance Monitoring

Deep, real-time visibiity into every virtual machine's health

  • Monitor over 40 preconfigured performance monitors per hypervisor, covering CPU Wait/Ready, Memory Balloon/Shared/Swapped/Overhead, disk I/O, and network throughput out of the box.
  • Get 'Top Hosts' and 'Top VMs' listings ranked by CPU consumption, swap memory usage, and disk I/O.
  • Set configurable thresholds for any performance monitor; OpManager Nexus raises alerts the moment a threshold is breached, enabling proactive fault identification before users are affected.
  • Drill down on individual VMs to identify which virtual servers are running low on resources, and pinpoint exactly where in the stack the constraint originates.
  • Generate over 70 out-of-the-box performance reports.

VM Sprawl Control

Control VM resource sprawl before it strains your infrastructure

  • Dedicated VM sprawl dashboard surfaces idle, over-allocated, and under-allocated VMs by CPU and memory utilization.
  • Use 'Top VMs by CPU over-allocated' and equivalent memory views to identify specific machines consuming more than their fair share and reallocate resources to active workloads that need them.
  • Monitor the full lifecycle of every VM- from provisioning to decommissioning- ensuring VM sprawl doesn’t go unchecked.
  • Receive threshold alerts when any VM's resource allocation crosses defined boundaries.
  • Continuously track virtual resource distribution across all hosts to ensure workloads are balanced, preventing any single host from becoming a bottleneck due to uneven VM allocation.

Capacity Planning

Make informed upgrade decisions

  • Access over 100 out-of-the-box reports for capacity planning, covering CPU utilization trends, memory growth, storage usage, and network consumption across all hosts and VMs.
  • Analyze growth patterns of critical metrics to determine whether a spike is a temporary anomaly or a trend that signals an imminent need for resource upgrades or new VM purchases.
  • Monitor memory, performance, and network utilization trends over time so capacity decisions are based on observed infrastructure behavior rather than estimates or guesswork.
  • Schedule or export capacity reports as PDF, CSV, or XLS for sharing with stakeholders, justifying procurement requests, or satisfying compliance and audit requirements.
  • Track real-time CPU usage, memory availability, and storage headroom across your virtual infrastructure to trigger proactive scaling before workloads begin degrading.

Migration & Topology

Understand VM relationships and track migrations in real time

  • Real-time network topology maps visually lay out the relationships between host servers, guest VMs, networks, and data stores.
  • VM migration tracking lets administrators monitor virtual machines moving from one physical host to another in real time, with full visibility into the migration status and destination host.
  • Identify virtual servers that need relocation based on current resource pressure, and use topology maps to select the most appropriate destination host before initiating a migration.
  • Spot virtual servers running low on resources within the topology view, enabling preemptive measures before performance degradation spreads to dependent applications or services.
  • Maintain a continuously updated map of your virtual infrastructure that reflects migrations, decommissions, and new VM provisioning.

Fault Management & Automation

Detect virtual infrastructure faults and fix them automatically

  • Get instant notifications via SMS or email the moment a VM exceeds a performance threshold, experiences a fault, or goes down.
  • Use OpManager Nexus' advanced workflow automation to configure trigger-based actions such as VM restarts, resource reallocation, or ITSM ticket creation — that execute automatically when a fault condition is detected.
  • All relevant fault details including affected VM, root cause indicators, and performance context are presented on a common console, reducing the diagnostic effort needed to resolve issues quickly.
  • Integrate virtual infrastructure alerts directly with ServiceDesk Plus, ServiceNow, Slack, or Microsoft Teams so incidents are automatically logged and routed to the right team without manual hand-off.
  • Automate repetitive troubleshooting and remediation tasks that previously required manual intervention.

FAQ

What challenges do enterprises face in managing virtualized environments?

Enterprises struggle with VM sprawl, resource contention, and limited visibility across hosts, clusters, and workloads. Dynamic VM movement and hybrid deployments make it difficult to track dependencies, maintain performance consistency, and prevent over- or under-utilization of compute, storage, and network resources.

Why is virtualization monitoring critical in enterprise environments?

Virtualization introduces abstraction layers that can hide performance issues and dependencies. Monitoring ensures visibility into host, VM, and datastore relationships, helping IT teams maintain performance, avoid resource bottlenecks, and ensure application availability across complex, distributed environments.

What are the benefits of strong enterprise virtualization monitoring?

Effective monitoring improves resource utilization, reduces VM sprawl, and ensures consistent workload performance. It enables faster troubleshooting, better capacity planning, and real-time tracking of VM migrations—helping enterprises maintain control, optimize infrastructure costs, and support scalable, high-performance environments.

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