SATA In Enterprise Storage Ron Engelbrecht Vice President and General Manager Engineering and Manufacturing Operations September 21, 2004

2 Engenio Information Technologies Leading designer and manufacturer of high performance disk storage technology  24 years of open storage technology innovation More than 180 storage patents  Shipped over 212,000 storage systems Over 18 PB in 2003 alone  Installed footprint of $13.3 billion

3 Serial ATA – Ready For The Enterprise SATA’s serial interface and faster mechanism have enabled it to enter the enterprise storage market InterfaceParallel ATASerial ATAConsequence TransmissionParallelSerialPerformance Bandwidth133 MB/s (max)150 MB/sPerformance ConnectionsMaster / slavePoint-to-point Performance Scalability MechanismPATASATAConsequence Rotational velocity5,400 RPM7,200 RPMPerformance Average time to data (latency + seek) ~ 16 ms~ 13 msPerformance Max sustained data transfer rate (drive) 46 MB/s59 MB/sPerformance

4 Application Access Patterns – IOPS Random, small-block transfers  OLTP, databases, Exchange  Vast majority of enterprise applications Drive performance enablers:  Number of drives More drives equals more IOPS  Seek time, latency, rotational velocity, command queuing

5 Application Access Patterns – Throughput Sequential, large-block transfers  Video servers, rich media, seismic processing, HPC Drive performance enablers:  Data transfer rate, max I/O size, command queuing Max controller bandwidth typically reached with relatively low number of drives, negating small differences in per drive transfer rates

6 Classes Of Disk Storage PrimarySecondaryEntry-level Typical applications OLTP, databases, ERP, Retention managed data fixed content, D2D backup 1 st external RAID File / print server Requirement IOPS performanceHighestMinimal MB/s performanceHighestHighMinimal Time to dataImmediate~ Immediate Media reliabilityHighestHigh Uptime24/7< 24/7 OK PriceHigher is OKLow cost-per GBLowest Primary mediaFC diskSATA diskSATA / SCSI disk

7 Enterprise SATA Applications Secondary storage applications  Disk-to-disk backup / restore  Disaster recovery  Fixed content / reference data Bandwidth / streaming applications (HPC)  Good throughput at low cost per MB Entry-level SMB  Low-cost, low I/O requirements

8 Secondary Storage Applications Disk-to-disk backup / restore  Shorter backup time / higher application availability  Spinning archive enables faster restores  Improved backup / restore reliability Fixed content / reference data  Medical imaging, object folders, historical reports  “Nearline” – data previously stored on tape Disaster recovery  Restoration source of archived information  Hot site storage of “like” data from primary site Temp work space for short-term processing  Minimal IOPS performance requirements

9 Primary Storage Applications Bandwidth / streaming applications  High Performance Computing (HPC), video streaming, media / rich content, oil and gas  Primary requirement: good throughput at low cost per GB Entry-level SMB  Primary requirement: low-cost Also has low performance requirement

10 “How Will You Deploy ATA” D2D Backup Primary Reference / archive Test / temp Disaster recovery 20% 40% Baird – Storage and IT Survey III (Q2 ’04) All Respondents Current ATA Users 40% 20%

11 Application Drive Requirements FC and SATA will typically be deployed to satisfy very different application requirements FC – performance requirements  Maximum number of spindles per box/capacity point, spinning at maximum rotations per minute SATA – cost-per-gigabyte requirements  Minimum number of spindles per box/capacity point, spinning at acceptably fast rotations per minute

12 Designing An Enterprise-Class SATA System Redundant pathing for single-ported SATA drives Dual-active controllers with automatic I/O path failover Redundant, hot-swappable components Fully-featured storage management Online administration and dynamic configuration Online scalability past initial enclosure Centralized administration of FC and SATA systems

13 Engenio SATA Storage Systems Designed for environments that require lower cost storage, but do not want to give up the availability and functionality achieved with FC-based systems  SATA systems utilize same controllers, enclosures, firmware and management software as enterprise-class FC systems  Unique SATA Interface card provides SATA drives with redundant I/O pathing and FC-like functionality  Robust firmware ensures data protection and integrity

14 SATA Solutions In The Field Customer: Veritas DGC  A leading provider of integrated geophysical, geological and reservoir technologies to the petroleum industry worldwide Business problem:  Bring more data online to: reduce the time of completion of customer projects; handle more customer projects in parallel; do the same projects more cost effectively. SATA solution:  Over 400 TB of SATA storage worldwide

Thank You