© 2007 DataDirect Networks, Inc. All Rights Reserved. Simple Petabyte-Level Scaling Industry Leading Performance SATAssure Data Integrity Power & Space Efficiency S2A Technology Update A Tradition of HPC Data Leadership 2008 HPC User Forum Spring Meeting Jeff Denworth: Director of Platform Solutions

DataDirect Networks Target Applications Total Worldwide Digital Archive Capacity: Source: Enterprise Strategy Group Servicing performance and capacity-bound applications experiencing compounding storage management issues These application profiles collide in the HPC data center 2 Sample Data Points –Defensive I/O: Multi-Core = More Memory = More data to Checkpoint Scalable, High-Performance WRITE-INTENSIVE storage is required Low-Cost, High Density RAM (eg. MetaRAM) will only compound this problem –Productive I/O: Data Volume is Exploding CERN LHC will produce 27TB per day! That data needs to be distributed to 7000 researchers worldwide

© 2007 DataDirect Networks, Inc. All Rights Reserved. SATA Usage & Capacity Increases Vulnerability Implications The Appeal of SATA Technology: –Lower price per GB –Larger capacity –Lower power consumption –Less heat than Enterprise drives FeatureEnterprise-ClassSATA Rotational Speed15,000 RPM7,200 RPM Capacity400GB1TB (1,000 GB) Drive Defect ListIn hardwareOn media # of CPUs 2 – one for I/O, one for mgmt 1 for everything Prone to silent data corruption NoYes Duty CycleContinuousNon-continuous Average Failure Rate LowHigh The Trade-Off: Performance is 1/2 - 1/3 of SCSI SATA exacerbates storage issues –Lower seek performance –Less reliability controls (mechanically) –Less robust electronically Rebuild Times Grow w/ Capacity –Not Complimentary to Reliability –Many Drives not even dead –Sick/Slow Drives are Common The Physics of a Spindle: Rebuild TimeHoursHours-Days DataDirect Networks 4 th Largest Linux TB Shipped ‘06 The Experience from a leader: “No Trouble Found” RMAs InfrequentOver 80%

© 2007 DataDirect Networks, Inc. All Rights Reserved. High Performance Computing Traditional Storage Issues  We believe that traditional storage technologies are incapable of responding to the growing data challenge.  Issues with traditional storage in HPC  Systems deliver substantially lower write performance than read performance – often ½ less  Systems are not designed to provide predictable I/O and handle failures  Striped storage environments realize degrading performance as the cluster grows – Amdahl’s Law Degraded shared file performance as systems encounter sluggish / failed drives Capacity SystemPerformance Peak System Performance Not delivered in clustered environments

© 2007 DataDirect Networks, Inc. All Rights Reserved. DataDirect Networks S2A9900 6GB/s Read & Write Performance: 24GB/s Internal Bandwidth 8 x Active/Active Host Ports: FC4, FC8, 4xDDR-Infiniband Scales to Support 1,200 Hard Drives Up to 40,000 IOPS to disk Mix SAS + SATA For Storage Tiering 600 Drives per Rack; 1.2PB in Two Racks Zero-Compromise SATA Latency No-Impact Drive Rebuilds Journaled Fast Drive Rebuild Sleep Mode for Optimum Power Efficiency Real-Time Read Parity Checking Non-Disruptive Drive Power Cycling  reduces SATA drive maintenance by up to 90% - no more No Trouble Found RMAs!  combined with Journaled Rebuilding - dramatically increases reliability 8th Generation S2A Technology Resolving Performance & Reliability Within the Box 2008 Winner Visionary Product

© 2007 DataDirect Networks, Inc. All Rights Reserved. DataDirect Networks Product Family S2A9900 6GB/s Write & Read Sequential I/O Optimized 1,200 SAS and/or SATA Drives 1.2PB in Two Racks Optional Solutions: S2A Clustered NAS S2A HPC Storage Solution S2A Shared SAN File System S2A VTL Solution S2A9700 3GB/s Read & Write Sequential I/O Optimized 1,200 SAS and/or SATA Drives 1.2PB in Two Racks S2A9550 3GB/s Read & Write Sequential I/O Optimized 960 Fibre-Channel or SATA Drives 960TB in Two Racks Introducing: S2A6620 Modularity + Density Optimized for IOPS Applications & Superior Density 30,000 IOPS (to disk) Supports up to 120 SAS or SATA drives Up to 120TB in 8U Active/Active Storage Managers Announce d Today!!

© 2007 DataDirect Networks, Inc. All Rights Reserved. S2A Storage = The Gold Standard in HPC I/O –Common Platform: Processing, Backup and Archiving –OPEN storage application & file system flexibility –DirectRAID Algorithms optimized for large data transfer Writes as fast as reads; Unrivaled real-world performance – with SATA –Green Storage: SleepMode and up to 660 drives/rack –The Performance & Capacity Storage Leader 40 of the top 100 supercomputers choose S2A Technology –Tight Integration with Parallel and Archival File Systems Lustre, GPFS, pVFS, Quantum StorNext, CXFS + DMF, HPSS, etc. Case Study: LLNL Requirements: Multi-Cluster, Massively Scalable Site-Wide Lustre Platform Includes world’s fastest BlueGene/L 130GB/s GPFS System for Capability System (Purple) Maximum SATA data integrity Solution: 150GB/s+ S2A Systems providing scalable I/O and Data Availability Case Study: LLNL Requirements: Multi-Cluster, Massively Scalable Site-Wide Lustre Platform Includes world’s fastest BlueGene/L 130GB/s GPFS System for Capability System (Purple) Maximum SATA data integrity Solution: 150GB/s+ S2A Systems providing scalable I/O and Data Availability Sample Customers: Variety of Applications Sample Customers: Variety of Applications Worldwide HPC Experience Partners:

© 2007 DataDirect Networks, Inc. All Rights Reserved. Thank You. Simple Petabyte-Level Scaling Industry Leading Performance SATAssure Data Integrity Power & Space Efficiency