Engenio 7900 HPC Storage System

2 LSI Confidential LSI In HPC LSI (Engenio Storage Group) has a rich, successful history of deploying storage solutions for the HPC market –Over 50 petabytes of LSI storage currently installed in HPC sites LSI is focused on the HPC market as a strategic opportunity –These customers have the most demanding technology requirements and are often a leading indicator for technologies that will soon move into the mainstream Examples include Linux clusters, Global File Systems, and InfiniBand –Making our technology available first to HPC customers benefits our General Purpose Computing, or GPC, products and customers ESG recently established a cross-functional team focused on the HPC market designed to ensure that we maintain our HPC leadership

3 LSI Confidential Robust storage management supports unparalleled configuration flexibility and online administration Scalability up to 480 TB satisfies the most demanding capacity requirements Bullet-proof reliability and availability to ensure continuous high-speed data delivery Flagship storage system designed for compute-intensive applications Engenio 7900 HPC Storage System

4 LSI Confidential The 7900 HPC storage system is uniquely positioned to deliver HPC-class performance with uncompromising uptime to ensure continuous high-speed data access Engenio 7900 HPC Storage System

5 LSI Confidential HPC Performance Industry-leading 6.4 GB/s on sustained reads from disk Lineage of balanced performance excels at mixed workloads Field-replaceable host interface cards adapt to changing infrastructure –4 Gb/s FC –20 Gb/s IB –8 Gb/s FC (future) –40 Gb/s IB (future) Reliability and Availability Proven architecture based on over 30 years of design knowledge and firmware development –Almost 400K systems shipped Uninterrupted data uptime –Five 9s availability –No single point of failure –Fully-redundant data path with automated failover –Battery-backed controller cache mirroring –Proactive drive health monitoring –Hardware-assist RAID 6 –Read parity check Performance + Uptime = Computational Efficiency

6 LSI Confidential Computational analysis Upstream/downstream processing Genomics Satellite ground stations Data-intensive research 3-D computer modeling Seismic processing Data mining Large-scale simulation 7900 HPC Positioning Ideal for environments that store vast amounts of data for high-bandwidth programs

7 LSI Confidential Government labs Biosciences Scientific research & development Energy, weather, climate Oil and Gas Media and entertainment Geospatial companies 7900 HPC Positioning Ideally suited to markets with high volumes of data processing and computing demands

8 LSI Confidential Key Features 7 th -generation XBB2 architecture delivers unprecedented performance, multi-dimensional scalability and unparalleled flexibility Balanced performance supports mixed workloads for applications ranging from transaction-heavy to bandwidth-intensive Fully redundant I/O paths, automated failover, battery-backed mirrored cache, and online administration keep your data accessible Field-replaceable host interface cards adapt to changing infrastructures Support for SATA drives and RAID level 6 allows administrators lower costs without sacrificing data protection Proven architecture benefits from more than 30 years of design knowledge and firmware development

9 LSI Confidential Specification Overview Key new features 7 th generation XBB2 controller technology –Custom ASIC with built-in hardware-assist for RAID 5 XOR and RAID 6 p+q –Four 2 GB/s PCI-Express X8 buses (two host, two drive) deliver 4 GB/s of internal bandwidth –Two dedicated 2 GB/s PCI-E X8 cache mirroring buses –Field replaceable host interface cards Dedicated data cache –Dedicated cache mirroring busses –Battery-backed and destaged to disk after power loss H P C Host/SAN connectivity Sixteen 4 Gb/s FC Eight 20 Gb/s IB Drive channels / drives Sixteen 4 Gb/s FC 480 – FC/SATA (256 initially) XOR and Cache Dedicated XOR engine 8 GB dedicated cache Battery-backed, mirrored Performance 6.4 GB/s sequential disk reads 5.4 GB/s sequential disk writes Dual-controller system specs

10 LSI Confidential Field Replaceable Host Interface Cards

11 LSI Confidential 6998 / 7900 HPC Specification Comparison Dual-controller system (unless noted) H P CImprovement Host channels8 FC16 FC or 8 IB2X Redundant drive channelsEight 4 Gb/sSixteen 4 Gb/s2X Max drives224 FC/SATA480 FC/SATA2X ProcessorIntel Xeon 2.4 GHzIntel Xeon 2.8 GHz--- Processor memory (single controller)Up to 1 GB2 GB2X XOR technologyDedicated ASICDedicated ZIP ASIC--- Bus TechnologyPCI-XPCI-Express2X Internal controller bandwidth (single controller) 1 GB/s4 GB/s4X Data cache (min/max)2 GB / 16 GB8 GB--- Cache Hold-upBattery backedPermanent2X Cache MirroringBack-end loops2 dedicated busses--- Cache bandwidth (single controller)3.2 GB/s17 GB/s5X

12 LSI Confidential 6998 / 7900 HPC Performance Comparison H P CImprovement Burst throughput cache read1,700 MB/s6,400 MB/s3.8X Sustained throughput disk read1,600 MB/s6,400 MB/s4X Sustained throughput disk write (CMD)1,300 MB/s5,400 MB/s4X Burst I/O rate cache reads575,000 IOPS700,000 IOPS1.6X Sustained I/O rate disk reads86,000 IOPS~ 172,000 IOPS (est)2X Sustained I/O rate disk writes22,000 IOPs~ 45,000 IOPS (est)2X ~ Performance numbers are preliminary estimates based on 448 drives and not committed. Actual results based on testing are to be determined. All numbers were done using RAID 5 using switched drive modules.

Questions

14 LSI Confidential 7999 Controller Block Diagram