Application Dependency Mapping critical to ensuring Business Availability

Application dependency mapping is the process of diagramming out the components that make up an IT service. This includes the underlying storage, networks, and server infrastructure that communicate together to support an application service. It means, finding and following any and all inter-dependencies between services and components, documenting them and knowing exactly how they impact each other.

While this may not seem difficult for smaller IT systems, the challenge comes when dealing with complex systems that have changed over time. As different engineers and administrators oversee services, expansions take place, IT personnel changes, and IT systems expand and increase in complexity, it can make it virtually impossible to manually map.

According to the 2017 State of the Network Engineer from NetBrain, the chief reason network engineers don’t diagram application dependency is that the manual process takes too long. Thirty-five percent of respondents indicated that it took their teams a month or longer to generate an application dependency map.

This is where application dependency mapping tools come into play. Rather than tediously trying to manually map an IT service, dependency mapping software can automate and simplify “map” creation.

Why Mapping Matters

As the opening examples illustrate, in today’s litigious society, legal repercussions are an ever-increasing possibility when critical services and networks go offline. In addition, many service-level agreements (SLAs) have clauses that incorporate penalties or discounts for clients who experience unplanned downtime.

Even where there are no legal consequences to interrupted services and downtime, the cost—in terms of a company’s customer base—can be disastrous. According to a study by Akamai, 75% of customers who experience slow load times, freezes or crashes when shopping at a website will no longer buy from that site.

The evidence is clear: Pinpointing the cause of performance outages and bottlenecks is easier with a coherent view of underlying relationships of communicating devices. This speeds the ability of organizations to discover and resolve outages, minimizing consequences from these events.

Dependency Mapping: The Value It Adds to Your Company

In addition to avoiding costly outages, dependency mapping can proactively save companies time and money by improving efficiency. In today’s world of inter-connected services and applications, understanding and optimizing services is the key to being able to function smoothly and handling customer growth.

For example, a company may be experiencing poor network performance or cloud slowdowns. With traditional troubleshooting, network teams would need to painstakingly track down the issue, spending countless man-hours trying to find the cause of the problem. In contrast with application dependency mapping, IT staffs can quickly pinpoint problems by looking at the big picture. By seeing exactly how components and services are inter-connected, staffs can quickly identify bottlenecks, congestion points and design issues that can cut network troubleshooting to a fraction of the time.

Even more critical, dependency mapping can help you avoid problems and slowdowns altogether or at least greatly reduce their likelihood. By having an accurate, up-to-date map of your network and cloud infrastructure, you can find problems before they come up, see areas where performance will likely slow down with additional growth and identify weak points in your infrastructure, services, and components that should be addressed before they reach a breaking point. This, in turn, helps your company target its upgrade and maintenance efforts where they really matter and where they will return the most value.

By: Steve Brown, Director of Product Marketing, VIAVI Solutions

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