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Containers Expo Blog: News Item

Atlantis Computing Launches Solution to Optimize Citrix XenApp

Atlantis ILIO for Citrix XenApp Solves the Storage and Performance Bottlenecks

Atlantis Computing, a provider of Virtual Desktop Infrastructure (VDI) storage and performance optimization solutions, announced the release of Atlantis ILIO for Citrix XenApp to address the challenges associated with virtualizing Citrix XenApp deployments on VMware vSphere. Atlantis ILIO reduces provisioning time, improves the user experience and cuts the amount of storage required by up to 90% when running Citrix XenApp in the virtual datacenter. Atlantis ILIO for Citrix XenApp is particularly critical to customers planning to virtualize XenApp 6.5 with Windows Server 2008 R2.

Virtualizing XenApp causes a storage bottleneck that increases provisioning times, extends boot times and can reduce the number of XenApp sessions per server. To address the storage and performance barriers, Atlantis ILIO for Citrix XenApp continuously optimizes the storage traffic of the virtualized Windows Server throughout the daily cycle of re-provisioning, bootup and logon.

"There is a massive install base of customers on Citrix XenApp 4.5 with Windows Server 2003 that must move to Citrix XenApp 6.5 with Server 2008 R2 by March 2013," said Vincent Branger, Virtualization Expert and Consultant, Infralys. "When customers migrate to XenApp 6.5, the majority will virtualize Windows Server 2008 R2 to take advantage of the manageability and consolidation benefits of server virtualization. However, the combination of virtualizing XenApp, upgrading to Windows Server 2008 and shared storage introduces performance issues with provisioning, boot time and application response time for IO bound applications."

As XenApp customers migrate to Windows Server 2008, they want to virtualize their XenApp servers to take advantage of server consolidation and improve their manageability. However, the combination of virtualizing XenApp and moving to Windows Server 2008 requires a significant increase in the amount of shared storage needed to avoid performance issues.

"Both VDI and Citrix XenApp/RDS follow patterns of approximately 80-90% write activity vs. read activity during steady state. This means that the enhanced write capability delivered by Atlantis ILIO is extremely important to the scalability of the Citrix XenApp & RDS/TS platform," said Shawn Bass, Citrix CTP and Microsoft MVP. "Deploying RDS/XenApp workloads behind Atlantis ILIO can reduce storage requirements, improve provisioning and boot time and improve scalability."

"As we deployed Atlantis ILIO for VDI to help optimize Citrix XenDesktop deployments, we were continually asked by customers about helping them with their Citrix XenApp deployments," said Bernard Harguindeguy, CEO of Atlantis Computing. "The Atlantis ILIO optimization of XenApp helps customers overcome the storage challenges of migrating XenApp to a virtualized datacenter, makes it possible to provision and refresh XenApp servers on-demand, and improves the user experience."

Atlantis ILIO for Citrix XenApp Test Results as Measured by Citrix CTP and Microsoft MVP, Shawn Bass


  • Provisioning - 53% faster provisioning
  • Boot Time - 4x faster boot times
  • Applications - accelerates response time of IO bound applications


  • Server Density - 16% increase in users per server
  • Storage Density - 10x more users on existing storage

Storage Savings

  • Storage Capacity - reduce storage capacity by 92%
  • IO Offload - reduce IO to storage by up to 90%
  • Latency - reduce IO latency to improve response time

More Stories By Derek Harris

Derek Harris Sr. is a senior technology writer and blogger with more than 20 years experience in journalism.

While covering a broad spectrum of technology segments, his focus is weighted on enterprise technologies in the data storage, security and infrastructure spaces.

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