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May 15, 2013

Atlantis ILIO Diskless VDI Reference Architectures Test Results with VMware View

Mark Nijmeijer - Atlantis

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Cisco and Atlantis Computing have partnered to develop a reference design as part of the Cisco® Desktop Virtualization Solution using Atlantis ILIO Diskless VDI™ and VMware View, which meets the business objective of reduced storage costs for a VDI deployment while providing high I/O performance that delivers an outstanding user experience by using server RAM.

The components that were tested are:

  • Atlantis ILIO Diskless VDI 3.2
  • Cisco Virtual Workspace (VXI) Smart Solution
  • Cisco UCS B200 M3 Blade Server with 384GB of memory
  • VMware View 5.1.2
  • VMware vSphere 5.1

The Reference design features a highly scalable VDI deployment model for stateless or floating desktops using VMware View.  The design eliminates the need for central SAN/NAS storage for the virtual desktop images and places the VMware replica’s and linked clones on the Atlantis ILIO In-Memory datastores. The virtual desktops are running directly from In-Memory storage, providing virtually unlimited IO performance and an amazing user experience as a result of that.

We tested a configuration with 120 virtual desktops on a Cisco UCS B-200 M3 with 384 GB of memory, with 2GB assigned to each virtual desktop.  The maximum measured RAM usage by ILIO was only 26 GB, or about 216 MB per virtual desktop for linked clone storage.  This is about a 92% reduction in storage capacity when compared to the full 12GB virtual desktop disk size.

Storage Savings for VMware View

The Atlantis ILIO In-Memory datastore provided a measured peak of 18,470 combined read and write IOPS, or about 150 IOPS per desktop on average and was able to boot all 120 VMs in about 5.5 minutes.

You can access the full reference architecture here.

About Atlantis ILIO Diskless VDI

Atlantis ILIO Diskless VDI is the only solution that can eliminate virtual desktop storage from a stateless VDI deployment by using Cisco Unified Computing System™ (Cisco UCS®) server RAM and Atlantis ILIO In-Memory Storage™ technology. RAM is the fastest of all storage media and has the lowest latency, and the solution delivers an exceptional user experience by using RAM as primary storage. With Atlantis ILIO, VMware View can now be deployed without the cost, complexity, and risks entailed in storage sizing, installation, and management.

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