1. 1 Northwestern University Information Technology Data Center Elements Research and Administrative Computing Committee Presented October 8, 2007

2. 2 Evanston Data Center Physical Space Staff offices 171: Operations/Printing (1950 ft 2 ) 173: Research (950 ft 2 ) 172: Hosting (3850 ft 2 ) Mailroom (2600 ft 2 ) Note: All areas shown have computer room raised floors

3. 3 Chicago Data Center Physical Space 232: Hosting (1000 ft 2 ) 234: Departmental Hosting (800 ft 2 ) Note: Areas do not have computer room raised floors.

4. 4 Data Center Tier Classification The Tier classifications were created to consistently describe the site-level infrastructure required to sustain data center operations, not the characteristics of individual systems or sub-systems. The requirements were established by the Uptime Institute, Inc. and are necessarily and intentionally very broad to allow innovation in achieving the desired level of site infrastructure performance, or uptime. The individual Tiers represent categories of site infrastructure topology that address increasingly sophisticated operating concepts, leading to increased site infrastructure availability.

5. 5 Data Centers Tiers Tier I: Basic Site Infrastructure Non-Redundant Capacity Components and Distribution paths. Any Capacity Component or Distribution Path failure will impact the computer systems. Planned work will require most or all of the systems to be shutdown. Tier II: Redundant Capacity Components Site Infrastructure Redundant Capacity Components, but single Non-Redundant Distribution Paths serving the site’s computer equipment. Redundant UPS modules and engine generators are required. A distribution path failure will cause the computer equipment to shut down. Tier III: Concurrently Maintainable Site Infrastructure Redundant capacity components and multiple distribution paths serving the site’s computer equipment. Generally, only one distribution path serves the computer equipment at any time. Each and every capacity component and element of the distribution paths can be removed from service on a planned basis without causing any of the computer equipment to be shut down. Tier IV: Fault Tolerant Site Infrastructure Redundant capacity systems and multiple distribution paths simultaneously serving the site’s computer equipment The site is not susceptible to disruption of service from a single unplanned worse-case event. Infrastructure maintenance may be performed by using redundant capacity components and distribution paths to safely work on the remaining equipment.

6. 6 Tier Rating of NUIT Data Centers Northwestern University’s central IT data centers are Tier I facilities. Tier I: Basic Site Infrastructure Non-Redundant Capacity Components and Distribution paths. Any Capacity Component or Distribution Path failure will impact the computer systems. Planned work will require most or all of the systems to be shutdown. Building Cost Comparison of Tier Facilities Construction Cost (+/- 30%) Tier ITier IITier IIITier IV Raised Floor (per sq. ft.)$220$220$220$220 Useable UPS Output (per kVA)$10,000$11,000$20,000$22,000

7. 7 Electrical Infrastructures Evanston Data Center Room 172: Hosting Dual Power Feeds Two 150kVA UPS units running in parallel 750kVA Diesel Generator Single Distribution Path Room 173: Small Research Center Single Power Feed Single 160kVA UPS unit No Generator Single Distribution Path Chicago Data Center Rooms 232 and 234 Single Power Grid 350kVA UPS unit 375kVA Diesel Generator Single Distribution Path

8. 8 Electrical Capacity for Evanston Data Center Hosting Rooms 171 and 172 What is the protected load capacity? Safe Electrical Draw is 240kVA What is today’s consumed load? Today’s Draw is 210kVA A power reduction plan is underway to shed load and bring the total draw down to 195kVA for these two rooms. Thus providing 45kVA of unused safe draw to utilize. Small Research Center Room 173 What is the protected load capacity? Safe Electrical Draw is 128kVA What is today’s consumed load? Today’s Draw is 20kVA

9. 9 Electrical Capacity for Chicago Data Center Hosting Rooms 232 and 234 What is the protected load capacity? Safe Electrical Draw is 300kVA What is today’s consumed load? Today’s Draw is 300kVA A power co-generation project to bring additional power into this location has been cancelled by Facilities Management. Facilities Management is recommending the purchase of a larger diesel generator.

10. 10 Cooling Capacity Evanston Data Center Room 17140 Tons supports up to 120kVA* Room 17280 Tons supports up to 240kVA* Room 17320 Tons supports up to 60kVA* Mail Room60 Tons supports up to 180kVA* *Aging units cause lower operating efficiencies causing a 25% inefficiency in cooling capacity. A HVAC upgrade project is underway to replace aging units will be completed in June 2008. Room 172180 Tons supports up to 510kVA Room 173 60 Tons supports up to 190kVA Chicago Data Center Rooms 232/23460 Tons supports up to 90kVA Staff offices 171: Operations/Printing 40 tons of cooling 173: Research 20 tons 172: Hosting 80 tons of cooling Mailroom 40 tons of cooling 232: Hosting 234: Departmental Hosting 60 tons of cooling

11. 11 Fire Suppression Evanston Data Center Pre-action sprinkler system Fire Protection project is underway and upgrades will include FM200 protection in Rooms 171, 172 and 173 Chicago Data Center Pre-action sprinkler system FM200 fire suppression system 232: Hosting 234: Departmental Hosting

12. 12 Physical Security Evanston Data Center NetBotzSurveillance Monitoring System DDC SensorsEnvironmental Monitoring System MarlokAccess System AI PhoneDoor Call Entry System Chicago Data Center NetBotzMonitoring System MarlokAccess System

13. 13 Network Connectivity and Security Evanston Data Center Dual Fiber Connection to Evanston NUNet Dual CISCO 6509 Switches Redundant Netscreen Firewalls Chicago Data Center Dual Fiber Connections to Chicago NUNet Dual CISCO 6509 Switches Redundant CISCO PIX Firewall Blades in 6509 switches

14. 14 Storage Capacity Evanston Data Center Storage Area Network Dual Cisco 9509 Fiber Channel Directors 57.2 TB Disk Storage 700 TB Tape Storage Disk Storage IBM DS8100 Enterprise Disk Array IBM DS4500 Disk Array IBM DS4100 Disk Array TAPE IBM 3584 ATL IBM Ultrium LTO1 and LTO2 tape Drives Chicago Data Center Storage Area Network Dual Cisco 9509 Fiber Channel Directors 4.2 TB Disk Storage 100 TB Tape Storage Disk Storage IBM DS4500 Disk Array TAPE IBM 3310 ATL IBM Ultrium LTO3 tape Drives