haysmed quickly identifies vdi performance issues with xangati
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8/9/2019 HaysMed Quickly Identifies VDI Performance Issues With Xangati
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Customer Success Story
Hays Medical Center is a private, not-for-profit hospital maintaining a local market share o
nearly 90% and staffing more than one thousand associates and physicians. With a total o
6,696 admissions and 173,321 outpatient procedures documented last year, the medica
group's specialty and rural health clinics accounted for more than 145,464 office visits. I
addition, the DeBakey Heart Institute had 2,374 admissions while the Dreiling/Schmid
Cancer Institute provided services to 2,580. Last year, 721 births were also recorded at th
hospital while 13,644 patients were seen in the Emergency Department.
Prior to Xangati, HaysMed was primarily relying on user feedback, network traffic, o
application-level statistics to try to gain a comfort level. Their VMware VDI environmen
started small, but over the years the number of users started to grow quite rapidly and th
complexity began to build. At one point, some quite serious performance issues began t
arise. Performance issues in VDI can be extremely difficult to troubleshoot. But with Xangat
that all changed.
HaysMed quickly identifies VDIperformance issues with Xangati
The ProblemOver a period of several months, HaysMed added several new remote facilities. Their EHR
system was extremely latency-sensitive, so the typical approach was to purchase metro-
ethernet connections (low latency but low bandwidth) to these sites. In the past, HaysMed
monitored these links with Cacti or Solarwinds, so it could see when utilization on the metro
reached a point that would cause issues for end-users. They could see it happening; but
finding the cause would often take hours - if they were able to find it at all.
The SolutionJames Billinger , Systems Engineering Professional of HaysMed said, "We started terminating
the metro connections to our new sites with NetFlow-capable firewalls. This lets us feed the info
back to Xangati, which can monitor the link itself or the entire remote site in real-time at a per-
session basis. Now, when we see utilization on one of these links spike, we can look at the
Xangati VDI dashboard and find out immediately who and what are causing the issue. This has
been so helpful that we’ve started replacing the firewalls in our existing facilities as well."
8/9/2019 HaysMed Quickly Identifies VDI Performance Issues With Xangati
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Performance Management of the VDI environment
Without predictive performance management, VDI environments can suffer from indeterminate
performance issues negating the benefits of VDI. In order to achieve complete service
assurance, VI users must be able to comprehensively track and analyze -- end-to-end -- all key
infrastructure components that affect VDI end-user experience. HaysMed experienced this when
performance issues began to arise as a result of their rapidly growing number of users.
Xangati enabled HaysMed to watch the VDI sessions at a very granular level - right down to
PCoIP session loss and latency. Based on what Xangati revealed, HaysMed was certain it didn’t
have issues on the network or with the hosts or clients themselves. However, it did seem to have
latency issues with PCoIP sessions proxied through a certain connection server. Sure enough,
once they removed PCoIP-proxy for their internal sessions and rebuilt the connection server for
external, the problems disappeared. They had spent weeks trying to uncover the issue that
Xangati identified and provided remedial steps to uncover immediately.
About Xangati
Xangati is a leading virtualization performance monitoring and service assurance analytics innovator serving complex
virtualized data centers and hybrid cloud environments. Over 400 customers among enterprises, government agencies,
healthcare organizations, educational systems and cloud managed service providers trust Xangati to gain real-time insights
into the performance of their virtual machines, Web applications and virtual desktop infrastructure environments, as well as
underlying network, storage and compute components. Xangati management dashboards, built on patented in-memory
architecture, provide a live, continuous and interactional view into the entire IT infrastructure with predictive analytics and
prescriptive remediation actions. Organizations such as Comcast, British Gas, Colliers, Harvard University and the U.S.
Army, have leveraged Xangati to resolve end-user issues more quickly, optimize virtual applications, diagnose root causes of
contention storms and assure overall infrastructure health. Xangati is headquartered in Silicon Valley and can be found at
www.xangati.com.
www.xangati.com
Phone: +1 (408) 252-0505
Sales Inquiries: sales@xangati.co
Support: support@xangati.com
"We expect our VDI environment to grow by about 400% this year alone, so we'll be getting
our money's worth out of Xangati in the process."
–
James Billinger
HaysMed Systems Engineering Professional
By turning on NetFlow and Xangati monitoring at most of these sites, HaysMed could instantly
determine whether or not file requests were being routed correctly. In addition, Haysmed was
then able to monitor the DFS replication process. Without knowing what Mbps connection limit
to set, HaysMed had inadvertantly been causing all sorts of issues for end-users due to DFS
“micro-bursts” (too small to show up on Cacti). The problem could have taken months to
resolve, but was easily identifed and remediated simply and instantly with Xangati.
HaysMed had also been converting most of its network storage (user and department drives) to
DFS model in which they had a file-server with a local copy of the data in most larger sites. Sinc
Microsoft DFS offers limited built-in monitoring, HaysMed started deploying DFS (pre-Xangati
and set up the “sites” in Active Directory. HaysMed had to rely on Wireshark packet capture tool
to try and determine if the files were being served from the correct location. This was
painstaking process, especially with half a dozen file servers to monitor.
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