Expert Panel Discussion + Case Study Review


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NCCE 2011
Admin/IT Summit - Virtualization

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  • Netware migration – driven by applications and loss of functionality by not having ADNetware was only providing file storage and directory servicesSLA allowed us to have a common OS and Office suites district-wideServers utilized local storage in RAID 5 configurations with tape backup in 18 buildings
  • Physical servers were underutilized in a 1:1 hardware to application ratio
  • Mainstream support = no product enhancements/upgradesGX260/270’s: Most are 6+ years old Do not meet current, minimum state standards Will not run some/most district standard applicationsStandards: Bad/outdated equipment does not support student achievement, more does not equal better!!! Historically this results in frustrated students, building staff, and IT Department!
  • Expert Panel Discussion + Case Study Review

    1. 1.
    2. 2. Richland School District #400<br />NCCE – Admin/IT Summit<br />March 2, 2011<br />
    3. 3. Richland School District #400<br />11,000 Students and 1200 staff<br />LCD’s and document cameras in all classrooms<br />150+ interactive whiteboards (IWB)<br />Migrated from Netware to Microsoft 2008-09<br />Currently support 7500 Active Directory accounts<br />6300 secondary students & 1200 staff – certified and classified<br />Microsoft SLA 3-year term, July 2008 – 2012<br /> Enterprise CAL Suite – Windows servers, Exchange, Sharepoint, Forefront, OCS – IM & Microsoft Exchange Unified Messaging for Voicemail - integrated with Avaya VoIP<br />Server leasing since 2000: 3-year terms, 2 leases <br />
    4. 4. Server Virtualization<br />Server Migration from distributed to centralized environment in December 2008: <br />VMware running ESXi hosts with iSCSI SANs<br />vCenter, vSphere, vMotion, Storage vMotion, Cloning, P2V, Virtual appliances, High Availability (HA)<br />Migrated from tape backup to disk-to-disk-to-disk (offfsite)<br />Initially migrated 30+ physical servers to 3 ESXi hosts<br />Replaced initial hosts in May 2010 - RAM is the key!!<br />Currently running 55 VM’s on 3 ESXi hosts<br />PowerSchool, Altiris, iFAS, Destiny, Exchange, Mealtime, IEP<br />Looking to add 4th ESX host<br />New applications = can it be a VM?<br />
    5. 5. VDI Drivers/Goals<br />Windows 2000 support phasing out between 2009 & 2014<br />Upgrade/replace PC’s to meet OSPI minimum specification<br />New district standard for existing PC/laptops<br /> Move to Win XP Pro & Office 2007<br /> Excess all computers below minimum spec<br /> Re-purpose older PC’s as thin clients where applicable<br />2010-11 licensed/budgeted for 4000 PC’s/laptops <br />A 5-year refresh cycle = refresh rate of 800 annually<br /> New PC/laptop at average cost of $800 = $640,000 annually<br /> Refurbished at average cost of $350 = $280,000 annually<br /> Refurbished/Off-Lease CPU’s, 3-5 year life cycle<br />GX745 SFF, Core 2 Duo w/2.0 GHz, 2GB RAM, DVD/CDRW, 3-year warranty<br />
    6. 6. VDI Selection<br />VDI Software Solution for Richland SD <br /> Selected Citrix XenDesktop for our solution<br />Conducted our own research at the time of purchase<br />Citrix XenApp (application virtualization) were desired features for RSD<br />Considerations for selecting a solution.<br />General VDI user experience is similar between XenDesktop & View<br />Do your own research / speak to a qualified vendor prior to purchase<br />Keep in mind both packages are software-based so feature sets can evolve over time<br />Similar metrics are used when planning system hardware<br />Compute - CPU<br />Memory - expansion capabilities<br />Storage - iSCSI, Fibre Channel, FCoE, etc.<br />
    7. 7. VDI Implementation<br />Server hardware solution for Richland SD <br />Goal: support 800 clients with room to expand as needed<br />Extensive comparisons between HP, Dell and Cisco UCS<br />Many alternate offerings were over subscribed on CPU and ability to expand RAM was not cost-effective<br />With maximum amount of RAM installed – 1333Mhz->1066Mhz-> 800Mhz<br />Individual sessions utilize 1-2 GB RAM each<br />6-8 XenDesktop users per CPU core<br />Cisco UCS supports up to 384GB RAM per full width blade, 4 per chassis<br />HP/Dell solutions included their own switches – additional connectivity cost<br />Cisco UCS offered best cost & effectiveness for our solution<br />
    8. 8. VDI Architecture<br />
    9. 9. Initial VDI Benefits<br />Excessed 830+ systems summer 2010 = 21% of total<br />Libraries, labs, student PC’s to start – elementary and middle schools<br />Converted 325+ legacy systems to thin clients<br />New thin clients options: <br />Windows Embedded <br />Windows Fundamentals<br />Linux OS<br />Zero client<br />Zero client with Wi-Fi<br />Windows 7 and Office 2010 rollout<br />Secure Gateway = Bring Your Own Device (BYOD)<br />
    10. 10. Questions:<br />