Customer Story: Steward Health Care System

Steward Health Care Diagnoses Application Issues with Insights from Wire Data


Steward Health Care System has grown rapidly—more than doubling the number of hospitals in its network over the last four years. In addition to this rapid growth, Steward Health Care has had to manage a wide proliferation of mobile devices—from more than 900 workstations on wheels (WOWs) used by front-line hospital staff to tablets and laptops used by doctors and nurses in ambulatory care clinics.

"Originally, we had six semi-connected hospitals, and adding five more exponentially increased IT complexity," says Mat Demers, Director of Systems Engineering for Steward Health Care.

In total, Steward Health Care delivers over 200 different applications, including MEDITECH, athenahealth, and eClinicalWorks for electronic health records (EHR), and their performance is critical for both employee productivity and the quality of patient care. "When a task that should take seconds takes minutes, the department workflow gets disrupted—and many tasks on the nursing floor are repeated, so those delays can literally add up to hours over a long shift," says Adam Hanson, Senior Director of Enterprise Infrastructure and Solutions Engineering for Steward Health Care.


Steward Health Care deployed ExtraHop to gain critical insight into its wire data—all L2–L7 communications between systems— and see performance issues in context, so they can be quickly understood and resolved.

Quick Standup and Easy Maintenance

Within an hour of installation, the ExtraHop appliance was providing useful, actionable information. "Often, you buy something and it's so complicated that it takes weeks of staff time to get value out of it," says Hanson. "But ExtraHop is almost plug-and-play in terms of the standup process, which is a huge departure from traditional monitoring tools. Even better, it requires nearly zero maintenance. The simplicity of ExtraHop was as advertised."

From Context and Correlation to IT Insights

With ExtraHop, Steward's IT teams are able to correlate reported incidents with activity across the application delivery chain— right down to the precise workstation, user session, application, and servers involved— and gain complete visibility across all layers.

"If a nurse pulls a patient's medical records, it's typically not a very linear communication path," says Hanson. "That single mouse-click involves calls to multiple data sources, across the 30-or-so fileservers that hold code for the application, and then reassembling and presenting it through Citrix XenApp. None of our other monitoring tools enabled us to correlate those inter-server communications and especially Citrix delivery—and that's the type of stuff we're using ExtraHop to really understand."


With contextual insight provided by ExtraHop, Steward Health Care is more efficient and effective in its IT troubleshooting. This has led to improved experiences and less frustration for medical staff.

Faster Resolution for "Nonobvious" Problems

On average, network engineers and system administrators at Steward Health Care spend up to two hours each day troubleshooting "nonobvious" performance issues—the kinds of problems that are not tied to a hardware failure or resource overutilization. ExtraHop is helping to increase these employees' productivity by enabling them to identify root causes faster.

"We used ExtraHop to pinpoint the cause of a slowdown for one of our 12 eClinicalWorks EHR deployments that our ambulatory clinics use, which was due to how our production and replica databases were racked in our datacenter. It was not an easy thing to diagnose—all we could see was that there were lots of timeouts and just overall a bad user experience," says Demers. "ExtraHop provided the critical information we needed to not only solve the problem but prevent it from happening again."

More Time for Patients

By speeding application performance for MEDITECH and eClinicalWorks, Steward Health Care is saving caregivers hours per day. "With ExtraHop, we're freeing doctors and nurses to spend more time with patients instead of waiting for the application, or even worse—resorting to paper and then manually re-entering data later," says Hanson.

Greater Stability Through Proactive Management

Steward Health Care uses ExtraHop to create performance baselines and track developing trends so the IT organization can proactively respond to changes in the environment. "ExtraHop enables us to understand what normal looks like and see if there is unusual spikes in communications between particular hosts for a particular protocol, error rates, or response-time latency, and whether that correlates with calls to our help desk," says Hanson.

Steward Health Care System customer story graphic

Get the overview white paper Start your ExtraHop demo