Auto-Discovery & Dependency Mapping

How can our system administrators identify unnecessary servers on the network?


The Problem

A major online retailer was considering a consolidation and cost-cutting virtualization initiative, with a goal of saving $100,000. The last time the company had attempted such an initiative, they removed several devices that unexpectedly caused high priority outages. This time, ensuring customer access during and after migration was the highest priority. The system administrators needed to verify server functionality and dependencies as well as to identify devices and services that could be consolidated or removed.

Desired Outcome

Identify and decommission unused servers without affecting customer access.

A major online retailer was considering a consolidation and cost-cutting virtualization initiative, with a goal of saving $100,000. The last time the company had attempted such an initiative, they removed several devices that unexpectedly caused high priority outages.


The Solution

Using the ExtraHop platform's automatic application discovery, the IT team mapped key services such as DNS, HTTP, and MySQL and their usage. While the team expected to see 12 DNS servers, the ExtraHop platform instead exposed more than 200 of them, an extreme waste of resources. Next, the IT team identified dozens of additional servers that served no application function yet were still powered. To find these servers, the team identified devices issuing NTP and DHCP requests to internal services but using no other protocols.

Before finally powering down each decommissioned server, the IT team used the ExtraHop platform to check the service against device activity, a final guarantee that no services would have to be re-enabled later.

User Impact

Using the ExtraHop platform, the system administrators completed the virtualization initiative two months early. They had no customer downtime and saved the retailer significantly more than the $100,000 projected.

Contact us Try our free online demo