# Server Health Monitoring Tool | ManageEngine OpManager

## Server health monitoring

Server availability is network availability. Monitor server health and keep the network uptime in check with OpManager.

Servers form a critical component of any network. They provide resources for the daily functioning of the applications and workloads hosted across the network. Any performance degradation in servers can have a cascading effect on the network. For example, if a critical server that hosts the production data for manufacturing crashes, the entire manufacturing workflow will get affected, delaying deadlines. This is why maintaining the health of servers is vital for seamless business operations. On this page we will discuss:

- [What is server health monitoring?](https://www.manageengine.com/network-monitoring/server-health-monitoring.html#what-is-server-health-monitoring)
- [Challenges faced](https://www.manageengine.com/network-monitoring/server-health-monitoring.html#challenges)
- [Linux vs Windows server monitoring](https://www.manageengine.com/network-monitoring/server-health-monitoring.html#linux-and-windows-monitoring)
- [OpManager: Comprehensive server health monitoring tool](https://www.manageengine.com/network-monitoring/server-health-monitoring.html#about-opmanager)

## What is server health monitoring?

[Server health monitoring](https://www.manageengine.com/network-monitoring/server-health-monitor.html) is the process of monitoring the availability and performance of servers. In general, server health is assessed based on key metrics like CPU, disk, and memory utilization. Modern server monitoring presents unique challenges, driven by the architectural shift from physical to virtualized infrastructure. Unlike the straightforward management of traditional physical servers, modern strategies must account for a single hardware host provisioning multiple virtual servers, each dedicated to a distinct application or workload. Adding to this complexity is the variety of servers used in an organization, including:

- Web servers
- Virtual machines
- Application servers
- DNS servers
- DHCP servers
- FTP servers
- Mail servers and more.

## Challenges in ensuring the health of servers

### Centralized visibility

Enterprise organizations often have distributed architectures with multiple data centers, branch offices, and corporate locations. This makes it difficult to monitor the servers across different locations. Also, workloads are hosted in cloud-based platforms in addition to the traditional on-premises setup. This hybrid setup means administrators end up using separate tools for each environment, leading to siloed data. This data compartmentalization can delay troubleshooting, affect root cause analysis (RCA), and eventually cause SLA breaches.

### Increased complexity with virtualization

In a modern IT environment, servers are no longer just physical machines. Organizations use virtualization techniques and deploy virtual machines (VMs) to run on a single physical server. Although this ensures efficient resource utilization, it also introduces the complexity of [VM sprawl](https://www.manageengine.com/network-monitoring/tech-topics/how-to-prevent-vm-sprawl.html), where virtual machines are created at an indiscriminate pace. This brings performance bottlenecks and increases the administrative overhead.

Further, the rise of containers has added another layer of complexity. Companies rely on containers as they are lightweight and easy to scale up. Now, server teams have to manage both VMs and containers, often across multi-vendor and hybrid environments, effectively making server monitoring a challenging task.

### Hardware issues

Server health is dependent on the state of the associated hardware. If the cooling systems malfunction, your servers can overheat and slow down, affecting the applications waiting upon the server for resources. The electrical system that powers your data centers can sometimes be affected due to bad weather, voltage fluctuations, or grid failures, and this can cause a server outage unless you have a backup power source. Proactive monitoring is essential to detect hardware problems and prevent them in the first place.

### Resource crunch

Servers provide critical backend resources like CPU, memory, and storage for your workloads such as applications, websites, and business services. Without insights into how your resources are being used, you might risk overloading particular servers while underutilizing others. This can create an imbalance and reduce the overall lifespan of your servers, resulting in premature replacements.

### Configuration drift

Configuration changes over time can make your servers deviate from their original baseline configuration. Unapproved manual changes and patches can result in [configuration drift](https://www.manageengine.com/network-configuration-manager/configuration-drift.html), which cascades into performance issues, security vulnerabilities, and compliance failures. In heavily regulated industries like the BFSI sector, such compliance failures can quickly escalate into SLA breaches and result in heavy financial penalties. For IT teams, managing configurations and ensuring only authorized changes are made is a huge challenge.

## Linux vs Windows server health monitoring

Windows servers are widely used—from individuals for personal needs to large-scale organizations to power workloads, business services, databases, and Active Directories. Any outage to Windows servers can have a significant impact worldwide because of their large customer base.

Linux servers are utilized for their open-source nature and customization features. Organizations often choose Linux servers as the total cost of ownership is lower compared to Windows.

### Challenges in monitoring Linux and Windows servers

| Linux | Windows |
|---|---|
| Relying on traditional monitoring methods such as Shell commands can be time consuming, especially for large scale organizations. | Failing to maintain uptime can have a significant impact on business, as most services are dependent on servers. |
| Monitoring and maintaining compliance across multiple Linux distributions like Red Hat Enterprise, SUSE, Ubuntu, Fedora, Debian, and CentOS becomes a challenge. | Managing multiple versions, such as Windows NT, Windows Server 2012 R2, Windows Server 2016, and Windows Server 2019 across distributed networks is a demanding job. |

Enterprise organizations do not rely on one type of server. Most environments run a mix of Windows and Linux servers, each critical to business continuity. Relying on separate tools for [Windows server monitoring](https://www.manageengine.com/network-monitoring/windows-server-monitoring.html) and [Linux server monitoring](https://www.manageengine.com/network-monitoring/linux-server-monitoring.html) can create silos and blind spots, slowing down troubleshooting and increasing operational overhead.

## Leverage a robust server health monitoring tool to ensure server health

Consider that you are a corporate financial services provider. Your servers hold customer data, aid in processing financial transactions, and host customer-facing apps used for loan disbursement and policy servicing. Imagine one of your core servers goes down during policy renewal season. Because it is peak season, many customers are trying to make renewals, which effectively slows down operations as an indiscriminate number of requests are loaded on your servers.

This can have a direct negative impact on your business. With a server monitoring tool, you can configure key metrics and understand how your server resources are used over time. The tool raises alerts when configured thresholds are violated, helping you detect issues proactively. Modern solutions with AI and ML capabilities can learn from past data, identify seasonal traffic in advance, and help you scale up or reallocate resources for efficient performance. In effect, you can avoid these challenges with the help of a server health monitoring tool.

Robust server monitoring solutions provide full-stack visibility into your network, not only monitoring server health and performance but also helping you understand how your services and workloads might be affected by server issues.

### OpManager: A comprehensive server health monitoring tool

[ManageEngine OpManager](https://www.manageengine.com/network-monitoring/server-monitoring.html?server-health-monitoring) comes bundled with server monitoring features and supports both [agent-based](https://www.manageengine.com/network-monitoring/agent-based-monitoring.html) and [agentless monitoring](https://www.manageengine.com/network-monitoring/agentless-network-monitoring.html) mechanisms to monitor server devices.

OpManager is a vendor-agnostic tool and supports major platforms like Windows, Linux, and virtual servers such as VMware and Hyper-V. You can monitor server uptime, processes, services, and key metrics like CPU, memory, and disk space, and understand how your critical resources are utilized over time with ML-driven graphs and reports.

## FAQs on Windows Server Monitor

### Are built-in OS commands sufficient to monitor server health?

Running basic commands like `top` in Linux or using Task Manager in Windows provides visibility into CPU, memory, and running processes. However, to achieve enterprise-wide proactive monitoring, traditional OEM tools are not sufficient.

### How often should server health be checked?

Servers are crucial to your business. Continuous or real-time monitoring with the help of server monitoring tools that offer instant alerts and automation is essential.

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