Manufacturing downtime should be measured in dollars per hour, not simply hours offline. The financial impact can include lost production, idle labor, delayed shipments, recovery expenses, overtime, and other operational costs.

Calculate the Real Cost of Manufacturing Downtime

Downtime costs extend beyond the revenue associated with the products that were not produced during an outage.

A manufacturer may continue paying employees who cannot perform their normal work. Production schedules can be disrupted. Orders may ship late. Employees may work overtime once systems return. IT resources or outside specialists may be required to resolve the problem. In some situations, an interruption can also affect customers and downstream operations.

Estimated Downtime Cost per Hour

Lost Production Value + Idle Labor + Delayed Revenue + Recovery Costs + Other Operational Impact

Consider a manufacturer with 50 employees affected by an IT outage. If the fully burdened labor cost for those employees averages $40 per hour, the company is already absorbing approximately $2,000 per hour in idle labor costs before accounting for lost production, delayed shipments, recovery expenses, or customer impact.

That does not mean every minute of an IT outage completely stops those 50 employees. The example demonstrates why manufacturers should calculate downtime using their own operations rather than relying on a generic industry statistic.

A manufacturer that knows its approximate cost per hour can make better decisions about redundancy, infrastructure investments, recovery planning, and technology lifecycle management.

Identify the IT Systems That Can Disrupt Operations

Manufacturing downtime is not limited to mechanical failures on the production floor.

Modern manufacturing operations depend on interconnected technology. A machine may remain operational while employees lose access to the systems required to schedule work, retrieve files, communicate, process orders, manage inventory, generate shipping documents, or perform other essential functions.

Critical dependencies may include:

• ERP and business management systems
• Network infrastructure
• Internet connectivity
• Servers and cloud platforms
• Identity and authentication services
• File and document systems
• Engineering applications and data
• Email and communications
• Backup and recovery systems
• IT systems connected to or supporting production environments

The importance of each system depends on the operation. An ERP outage might be inconvenient for one department but operationally significant for another. A network failure could affect an entire facility. Loss of access to engineering files may prevent work from progressing even when the production equipment itself is available.

Manufacturers should document these dependencies and determine which systems have the greatest potential to affect operations.

Find the Single Points of Failure

Once critical systems are identified, manufacturers can evaluate what each system depends on.

A business may have reliable servers but only one internet connection. A production facility may depend heavily on a network switch that has reached the end of its useful life. A critical application may rely on a single server. A recovery plan may depend on backups that have never been restored under real-world conditions.

These dependencies create single points of failure, components or services whose failure can interrupt a larger part of the operation.

The assessment should include infrastructure such as networks, internet connectivity, servers, cloud services, firewalls, power protection, applications, and backup systems. It should also consider external dependencies, including vendors responsible for specialized systems.

Age matters as well. Technology that continues to function is not necessarily technology that should remain in production indefinitely. Aging infrastructure may become harder to support, replacement components may become difficult to obtain, and manufacturers may eventually face failures on a timeline they did not choose.

Lifecycle planning gives the organization an opportunity to replace critical infrastructure intentionally rather than during an emergency.

Establish Recovery Priorities and Acceptable Downtime

Not every system needs to be restored at the same speed. Manufacturers should establish priorities based on the operational impact of losing each system. A simple classification can help:

• Critical — Production or essential operations may stop. Restore first.
• High — Significant business disruption. Restore quickly after critical systems.
• Moderate — Work can continue temporarily using alternatives. Restore after higher-priority systems.
• Low — Limited short-term operational impact. Restore as resources permit.

The specific recovery times should be determined by the manufacturer rather than copied from another company plan. For each critical system, leadership should understand how long the business can operate without it and how much data the organization can afford to lose.

Those two considerations are commonly reflected in recovery planning through Recovery Time Objective (RTO), the target amount of time for restoring a system or service after an interruption, and Recovery Point Objective (RPO), the acceptable amount of data loss measured in time.

A company that can operate for eight hours without a particular application has different requirements from one where a one-hour outage creates significant production disruption.

The same applies to data. AT-NET backup guidance notes that while some systems may be adequately protected with daily backups, mission-critical data may warrant backups at least hourly, depending on recovery requirements. The business requirement should determine the technology strategy.

Build Resilience Before the Outage

Reducing downtime requires more than reacting quickly when something breaks.

Manufacturers should combine proactive infrastructure management, monitoring, lifecycle planning, backup and recovery, cybersecurity, and documented response processes.

AT-NET provides clients with an internally staffed 24/7/365 help desk and reports a response time of less than 60 seconds. Clients also receive a dedicated Technical Alignment Manager (TAM) and vCIO.

Those functions address different parts of operational resilience. The help desk provides a resource when users need immediate assistance. The Technical Alignment Manager helps keep the technology environment aligned with established standards and identifies issues that require attention. The vCIO supports longer-term planning around infrastructure, cybersecurity, lifecycle decisions, risk, and technology investment.

Backups and disaster recovery provide another layer of resilience. AT-NET backup approach includes immutable storage, local and off-site backup options, daily backup review, and restore support.

The objective is to reduce both the likelihood of an avoidable outage and the time required to recover when an outage does occur.

IT and OT Dependencies Should Be Evaluated Together

Manufacturers increasingly operate environments where corporate IT and operational technology depend on one another.

Production systems may depend on network infrastructure. Engineering applications may exchange information with equipment or production systems. Vendors may connect remotely to machinery. Business applications may rely on data generated on the plant floor.

These connections create efficiencies, but they also create dependencies. A failure in the corporate network can potentially affect systems outside the traditional office environment. Likewise, changes to production-connected infrastructure can have consequences for business systems.

Manufacturers should document important IT/OT connections as part of downtime planning and understand which dependencies could create broader operational disruption.

The goal is not to manage every IT and OT system identically. It is to understand where they depend on each other and what happens when one of those connections fails.