WD Enterprise storage solutions Martin Pesa Filed Applications Engineer
WD Around the World WD Employees Worldwide: ~34,000 WD Confidential 2
WD Operations at a Glance World-class Facilities Delivering Operating Excellence Head Wafers Head HGA Hard Drives Head R&D Wafer Fab Slider HGAs HDD: 3.5-inch, 2.5-inch, HSA HDD: 3.5-inch DT & ENT PCBA, HSA HDD: 3.5-inch, 2.5-inch, Enterprise Silicon Valley Fremont CA Greater Bangkok Bangpa-in Greater Bangkok Navanakorn WDTh N1/N2 Greater KL Kuala Lumpur WDM P1/P2 Greater Bangkok Bangpa-in Facility 26,500 sq. meters Facility 45,790 sq. meters Facility 21,000 sq. meters Facility 45,000 sq. meters Facility 38,000 sq. meters Clean Room 9,000 sq. meters Clean Room 20,150 sq. meters Clean Room 6,000 sq. meters Clean Room 7,000 sq. meters Clean Room 13,000 sq. meters 24 x 7 operation 2 x 12 hr shifts 24 x 7 operation 2 x 12 hr shifts 24 x 7 operation 2 x 12 hr shifts 24 x 7 operation 2 x 12 hr shifts 24 x 7 operation 2 x 12 hr shifts WD Confidential 3
WD Operations at a Glance World-class Facilities Delivering Operating Excellence Media Development Media Operations Media R&D Pilot Production Media, Substrates: 3.5-inch, 2.5-inch Substrates 3.5-inch Substrates 3.5-inch Silicon Valley San Jose, CA Penang Malaysia WDM PN1/2 Johor Malaysia WDM JO1 Sarawak Malaysia WDM SO1 Facility 17,473 sq. Meters Facilities 74,322 sq. meters Facility 22,575 sq. Meters Facility 27,871 sq. meters Clean Room 5,227 sq. meters Clean Room 37,161 sq. meters Clean Room 11,520 sq. meters Clean Room 10,498 sq. meters 24 x 7 operation 2 x 12 hr Shifts 24 x 7 operation 2 x 12 hr shifts 24 x 7 operation 2 x 12 hr shifts 24 x 7 operation 2 x 12 hr shifts WD Confidential 4
WD Focus and Strategy 5
Quality Focus: Warranty Week May 8 th Data Storage vs. Computer Manufacturers: Warranty Claims Rates, 2003 to 2006 (as % of Product Sales) HP Seagate EMC Dell Western Digital IBM 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 2003 2004 2005 2006 Source: Warranty Week from SEC data 6
Technology update
Linear Density Projection for 3.5 Drives 2500 2250 2000 333 GB/P 500 GB/P 1750 250 GB/P KBPI 1500 160 GB/P 188 GB/P 1250 125 GB/P Adv Recording 1000 Next Gen Head Tech Next Gen Head Technology, Electronics 750 TuMR, Femto Slider, LUL Perpendicular Recording (PMR) Dynamic Flying Height, 500 Jul-05 Jan-06 Jul-06 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 8
WD Key Technologies IntelliSeek TM TM Optimizes seek speeds to lower power consumption, noise and vibration Fluid Dynamic Bearing (FDB) motor reduces noise and increases reliability Perpendicular Magnetic Recording (PMR) Stores bits vertically to to provide higher areal density with greater data integrity SilkStream TM Allows for smooth, continuous digital video playback of up to twelve Preemptive Wear Leveling (PWL) Drive arm sweeps across disk during periods of of inactivity, reducing uneven wear SecurePark TM Parks heads during spin-up, spin-down and non-operation ShockGuard TM Protects drive mechanics and platter surfaces from shocks Time-Limited Error Recovery (TLER) Prevents drive fallout caused by extended hard drive error-recovery process HD streams* *Assumes Host Transfer Block size of 2MB per stream Rotary Acceleration Feed Forward (RAFF TM ) Optimizes performance and operation of enterprise drives used in vibration-prone, multidrive environments WhisperDrive TM State-of-the-art seeking algorithms optimize how drive seeks for data, reducing noise and power needs StableTrac TM Double-tied motor shaft reduces vibration and ensures accurate tracking 9
Perpendicular Magnetic Recording (PMR) Advantages of PMR Media inside of head gap, providing higher writing fields (up to 2X) Reduced demagnetizing influence of adjacent bits, improves thermal stability Higher amplitude due to higher media MrT Solution for recording densities as high as 1 Tb/in 2 LMR Ring type head PMR Single pole type head Recording Media Soft Magnetic Underlayer 10
RE2 Intelliseek TM (Power saving feature) Intelliseek (Power saving feature) 11
IntelliSeek Saves Power Consumes significantly less power compared to normal seek With IntelliSeek Average current = 308mA Coil resistance @ hot = 11 ohms Power = 1.04 Watts Without IntelliSeek Average current = 570mA Coil resistance @ hot = 10.6 ohms Power = 3.44 Watts 12
New Products
EX188M Introduction (RE2 4 platter platform) Program Overview AYYS series Product Features 750G capacity point 3.5 inch, 188GB/Platter, 4 Platter Design 7200rpm, 16MB cache SATA 3.0Gb/s Hot Pluggable Native Command Queuing StableTrack Double Tied Shaft Motor Anti-disk controls (reduces disk flutter) Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load / unload technology ROHS compliant 14
EX188M Introduction (RE2 4 platter platform) Program Overview AYYS series Reliability Features Manufactured to Enterprise Reliability Standards Expanded, RAID-focused quality assurance process 1.2 M hr MTTF - 24/7 (8760 POH) Vibration Tolerance Rotational Accelerometer Feed Forward (RAFF) Error Recovery Low Power RAID specific Time Limited Error Recovery (TLER) for improved compatibility with RAID controllers Active Power Save 5 year warranty 15
XL160 Introduction (RE2 1 to 3 platter platform) Program Overview ABYS series Product Features 500G, 400G, 320G, 250G, 160GB capacity points 3.5 inch, 160GB/Platter, 3/2/1 Platter Design 7200 RPM, 16MB cache SATA 3.0Gb/s Hot Pluggable Native Command Queuing StableTrack TM Ramp load / unload technology Anti-disk controls Flutter Reduction Suspension (FRS) SecurePark TM Ramp load / unload technology ROHS compliant 16
XL160 Introduction (RE2 1 to 3 platter platform) Program Overview ABYS series Reliability Features Manufactured to Enterprise Reliability Standards Expanded, RAID-focused quality assurance process 1.2 M hr MTTF - 24/7 (8760 POH) Vibration Tolerance Rotational Accelerometer Feed Forward (RAFF) Error Recovery Low Power RAID specific Time Limited Error Recovery (TLER) for improved compatibility with RAID controllers Active Power Save 5 year warranty 17
Western Digital The industry leader
Western Digital The industry leader in performance WD is a performance leader with the following firsts: 1 st to introduce 8MB cache on a desktop drive Award winning JB series Increased performance by as much as 20% Industry followed 1 st to introduce the 10K SATA Award winning Raptor series Revolutionized the Enterprise SATA market 1 st to introduce 7200rpm Enterprise SATA Award winning RE series Revolutionized Enterprise SATA with high reliability focused drives Industry has once again followed WD Now, yet another WD first. 19
WD introduces the world s first Green Power Enterprise HDD
GP250M Introduction (RE2 Green Power 4 platter platform) Program Overview FYPS & AYPS series Product Features 1TB (FYPS) & 750GB (AYPS) capacity point 3.5 inch, 250GB/Platter, 3 / 4 Platter Design Intellipower, 16MB cache SATA 3.0Gb/s Hot Pluggable Native Command Queuing SecurePark TM Ramp load / unload technology StableTrack TM Double Tied Shaft Motor Anti-disk controls Flutter Reduction Suspension (FRS) RAFF ROHS compliant 21
GP250M Introduction (RE2 Green Power 1 to 3 platter platform) Program Overview ABPS series Product Features 500G capacity point 3.5 inch, 160GB/Platter, 2 Platter Design Intellipower, 16MB cache SATA 3.0Gb/s Hot Pluggable Native Command Queuing SecurePark TM Ramp load / unload technology StableTrack TM Anti-disk controls Flutter Reduction Suspension (FRS) RAFF ROHS compliant 22
WD s GreenPower Family Program Overview Green series World s first 3.5-inch hard drive family with power savings as primary attribute Desktop WD Caviar GP (Sept. 2007) Enterprise WD RE-GP (Nov 2007) Consumer Electronics WD AV-GP External applications WD s first 1 terabyte drive Low Power Competitor drives consume up to 72% more power, for the same performance Cool and quiet best-in-class: Operating temperature Acoustics 23
Storagereview.com 1TB Face Off Subjectively speaking, the GP's noise floor is utterly amazing. It is easily the quietest ever at idle, eerily silent even outside of a case. Seeks are also whisper quiet, significantly lower than all other modern 7200 RPM drives. -- Storagereview 24 24
Power Measurements At 3.8 watts, the Caviar GP delivers the lowest measured power dissipation by far of any drive that has met Testbed4. Under a full load, the power savings remain with the GP weighing in well under 8 watts... a figure lower than that of any other 3.5" drive at idle. --Storagereview 25 25
Multi-user Performance 1TB 26
EPA Report on Data Center Power Consumption Source: EPA report on Data Center Power Consumption, August 2007 27
EPA Data Center Report in Congress Aug 2, 2007 Datacenters consumed 1.5% of Nation s energy cost in 2006 61 Billion Kilowatt-Hours Federal servers and data centers alone, consumed 10% of 61B KW-Hr; $450M annual operating cost If left unchecked, the agency warns consumption threatens to cost the public and private sector $7.4 billion in annual electricity costs by 2011. 28
Financial Districts in Need of Storage Business districts are all in need of additional storage Existing building and power infrastructure are challenged 29
Power Infrastructure Power grid has finite power available POWER GRID Many existing business districts and building designs, never envisioned the ubiquitous and ever expanding need for storage 30
Matching Storage with Power Micro and macro economics of power infrastructure are becoming challenged POWER GRID Each incremental tier of storage and computing capacity, increases the need for additional utility power to supply systems and maintain environmental control 31
More Scotty Storage, We Need More More Power, Power! More Cooling As system storage is increased, incremental A/C infrastructure must be added, increasing demand on facility power capacity and/or utility availability Presuming enough physical space exists to add incremental A/C, building structures must be modified to support additional weight POWER GRID Available power is consumed 32
Scotty We Need More Power! External power sources are attached to supplement utility power enabling cooling capacity and expanded storage $ $ POWER GRID External power is expensive Rarely clean power Unreliable - prone to failure Complicated to manage Not unlimited 33
Scotty It s Getting Hot in Here! Even if external power is sufficient to power storage systems, insufficient cooling capacity provokes further system reliability issues POWER GRID As more storage is needed, data centers become desperate, and attempt to add incremental cooling capacity.. 34
Scotty We Need EVEN More Power! Building modifications pose substantial infrastructure issues as well as massive cost, and are not supported by viable long term power sources POWER GRID More As more storage.more is needed, power.more data centers become cooling more power, desperate, snowballing and attempt into to a vicious add incremental perpetual cooling cycle capacity.. What s the solution? 35
One Approach - WD GreenPower By replacing existing, highly inefficient high power drives with WD GreenPower drives, far more capacity can be deployed WD s 1TB GreenPower delivers 71% more storage than Brand A s 1TB drive* POWER GRID Enables 93% more storage than Brand B s 750GB drive* *At equivalent power 36
The WD GreenPower Benefit As much as 2.4W of cooling power per Watt of component power is required to maintain proper environmental control POWER GRID A 40% reduction in source power consumption, can eliminate expensive facility upgrades for incremental cooling 37
The WD GreenPower Benefit The complicated logistics of incremental cooling power are eliminated! Capacity is increased Captain - power has been restored! POWER GRID 38
The WD GreenPower Benefit At only ~8W of power consumption for 1TB of storage, and less than 1A of start-up current, WD GreenPower drives have the lowest power to storage ratio in the industry POWER GRID The need for power efficient mass storage will change how the industry addresses the Watts/GB equation! 39
Roadmaps
Enterprise RE2 Product Roadmap 10/07 Platform XL80-4 XL160S XL80-4 XL160M-P XL107-2 XL160M-P XL160M XL160M-P XL160M XL160M-P EP250M EX188M EP250M EP250M Model Number WD1600YS- 01SHB1 WD1600ABYS- 01PNA0 WD2500YS- 01SHB1 WD2501ABYS- 01B9A0 WD3200YS- 01PGB0 WD3201ABYSxxB9A0 WD4000ABYS- 01TNA0 WD4001ABYS- 01YNA0 Features Capacities Buffer Disks RPM HVM EOL Interface Q1 Q2 Q3 NCQ, TLER, 1.0M hr MTTF 160 16 2 7200-2/08 SATA XL80-4 160GB 3.0Gb/s MPP, DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 160 8 1 7200 1/08 TBD SATA 3.0Gb/s NCQ, TLER, 1.0M hr MTTF 250 16 3 7200-2/08 SATA XL80-4 250GB 3.0Gb/s MPP, PMR, DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 250 16 2 7200 1/08 TBD SATA 3.0Gb/s NCQ, TLER, 1.0M hr MTTF 320 16 3 7200-12/07 SATA XL 107 320GB 3.0Gb/s MPP, PMR, DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 320 16 2 7200 1/08 TBD SATA 3.0Gb/s DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 400 16 3 7200 6/07 12/07 SATA 3.0Gb/s MPP, PMR, DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 400 16 3 7200 11/07 12/08 SATA 3.0Gb/s WD5000ABYS- 01TNA0 WD5001ABYS- 01YNA0 WD5000ABPSxxZZB0 DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 500 16 3 7200 6/07 12/07 SATA 3.0Gb/s MPP, PMR, DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 500 16 3 7200 11/07 12/08 SATA 3.0Gb/s MPP, PMR, DFH, RL, NCQ, Intelli- TLER, 1.2M hr MTTF 500 16 2 Power 11/07 3/09 SATA 3.0Gb/s WD7500AYYS- 01RCA0 WD7500AYPSxxZKB0 PMR, DFH, RL, RAFF, NCQ, TLER, 1.2M hr MTTF 750 16 4 7200 8/07 6/08 SATA 3.0Gb/s MPP, PMR, DFH, RAFF, RL, Intelli- NCQ, TLER, 1.2M hr MTTF 750 16 3 Power 11/07 3/09 SATA 3.0Gb/s MPP, PMR, DFH, RAFF, RL, NCQ, TLER, 1.2M hr MTTF 1,000 16 4 WD1000FYPSxxZKB0 Intelli- Power 11/07 3/09 SATA 3.0Gb/s 2007 2008 Q4 Q1 > XL160M 400GB > XL160M 500GB > EX 188M 750GB Q2 Q3 > XL160S 160GB > XL160M 250GB > XL160M 320GB > XL160M 400GB > XL160M 500GB Q4 > EP250M 500GB > EP250M 750GB > EP250M 1000GB Volume Qual Samples EOL - PMR = Perpendicular Magnetic Recording - MPP = Memory Path Protection - RAFF = Rotary Acceleration Feed Forward - DFH = Dynamic Fly Height - TLER = Time Limited Error Recovery - MTTF = Mean Time To Failure - NCQ = Native Command Queuing - RL = Ramp Load/Unload 41
Enterprise AV Product Roadmap 10/07 PATA / AV Platform Model Number Features Capacities Buffer Disks RPM HVM EOL Interface Q1 Q2 Q3 2007 2008 Q4 Q1 Q2 Q3 Q4 R EXL160S WD800AVJB- 63SZA0 Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 80 8 1 7200 9/07 TBD PATA 100MB/s > XL160S 80GB R EXL80-3 WD1600SB- 01RFA0 TLER, XL80-3 160GB 1.0M hr MTTF 160 8 2 7200-11/07 PATA 100MB/s A VXL160S WD1600AVJB- 63SZA0 Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 160 8 1 7200 9/07 TBD PATA 100MB/s > XL160S 160GB R EXL80-3 WD2500SB- 01RFA0 TLER, XL80-3 250GB 1.0M hr MTTF 250 8 3 7200-11/07 PATA 100MB/s A VXL160M-P WD2500AVJB- 63WKA0 Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 250 8 2 7200 9/07 TBD PATA 100MB/s > XL160M-P 250GB R EXL107 WD3200SB- 01KMA0 TLER, XL 107 320GB 1.0M hr MTTF 320 8 3 7200-9/07 PATA 100MB/s A VXL160M-P WD3200AVJB- 63WKA0 Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 320 8 2 7200 9/07 TBD PATA 100MB/s > XL160M-P 320GB A VXL160M-P WD5000AVJB- 63YUA0 Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 500 8 2 7200 9/07 TBD PATA 100MB/s > XL160M-P 500GB SATA / AV Platform R EXL160S A VXL160S A VXL160M-P A VXL160M-P A VXL160M-P Model Number WD800AVJS- 63SZA0 WD1600AVJS- 63SZA0 WD2500AVJS- 63WKA0 WD3200AVJS- 63WKA0 WD5000AVJS- 63YUA0 Features Capacities Buffer Disks RPM HVM EOL Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 80 8 1 7200 9/07 TBD SATA 3.0Gb/s Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 160 8 1 7200 9/07 TBD SATA 3.0Gb/s Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 250 8 2 7200 9/07 TBD SATA 3.0Gb/s Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 320 8 2 7200 9/07 TBD SATA 3.0Gb/s Streaming, Intelliseek, Secure Park, 1.0M hr MTTF 500 8 2 7200 9/07 TBD SATA 3.0Gb/s 2007 Interface Q1 Q2 Q3 Q4 Q1 > XL160S 80GB > XL160S 160GB > XL160M-P 250GB > XL160M-P 320GB > XL160M-P 500GB 2008 Q2 Q3 Q4 Volume Qual Samples EOL - PMR = Perpendicular Magnetic Recording - MPP = Memory Path Protection - RAFF = Rotary Acceleration Feed Forward - DFH = Dynamic Fly Height - TLER = Time Limited Error Recovery - MTTF = Mean Time To Failure - NCQ = Native Command Queuing - RL = Ramp Load/Unload 42
Enterprise 10K Product Roadmap 10/07 10K Platform EL150 EL150 VR150 EL150 VR150 Model Number WD360ADFD- 00NLR5 WD740ADFD- 00NLR5 WD740BLHS- 01YCU0 WD1500ADFD- 00NLR5 WD1500SBLHS- 01YCU0 Features Capacities Buffer Disks RPM HVM EOL Interface NCQ, TLER, RAFF 1.2M hr MTTF 36 16 1 10000-9/08 SATA 1.5Gb/s NCQ, TLER, RAFF 1.2M hr MTTF 74 16 1 10000-9/08 SATA 1.5Gb/s NCQ, TLER, RAFF 1.2M hr MTTF 74 32 1 10000 9/08 TBD SATA 3.0Gb/s NCQ, TLER, RAFF 1.2M hr MTTF 150 16 2 10000-9/08 SATA 1.5Gb/s RAFF, NCQ, TLER, 1.2M hr MTTF 150 32 1 10000 9/08 TBD SATA 3.0Gb/s 2007 2008 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 EL150 36GB EL150 74GB EL150 150GB VR150 WD3000BLHS- 01YCU0 RAFF, NCQ, TLER, 1.2M hr MTTF 300 32 2 10000 6/08 TBD SATA 3.0Gb/s Volume Qual Samples EOL - PMR = Perpendicular Magnetic Recording - MPP = Memory Path Protection - RAFF = Rotary Acceleration Feed Forward - DFH = Dynamic Fly Height - TLER = Time Limited Error Recovery - MTTF = Mean Time To Failure - NCQ = Native Command Queuing - RL = Ramp Load/Unload 43
Thank You! Any Questions? Fell free to contact me at martin.pesa@wdc.com
Backup
Overall Single System Performance The Caviar GP is within 15% performance of Hitachi drive, and 15% in front of the Seagate Barracuda drive. 46 46
Green Power Press Reviews WD GP250 named in The Greenest Tech Products, by PCWorld http://blogs.pcworld.com/staffblog/archives/004970.html The GP does easily draw the least amount of power of any 3.5" drive we've ever tested... less than 1/2 of any other unit when idle. Even under a full seek, the GP enjoys an advantage of over 30% over the typical 7200 RPM SATA drive. In what almost seems like an ancillary effect, the GP also happens to be the quietest drive we have ever measured and heard here at SR. Its miniscule power dissipation also translates into far less need for cooling which yields yet more acoustic benefit. Especially when taken in the context of arrays featuring many drives that run 24x7, lower cost of operation also becomes significant. http://storagereview.com/wds_green_terabyte At a maximum read throughput of 76.5 MB/s, the WD10EACS is as fast as Seagate's Barracuda 7200.10 drive at up to 750 GB. Considering that the power consumption of the WD drive is so much lower, that's pretty good The second benefit aside from reduced power consumption is low heat dissipation, which is at the level of a single-platter hard drive. Compared to the improvement in power consumption and surface temperature, the performance impact is almost negligible." Tom's Hardware- http://www.tomshardware.com At $330 and up, hard drives from Hitachi and Western Digital are fighting at the same price point the terabyte. Since the performance difference is little and will mainly be noticeable in I/O-intensive applications, we tend towards the more efficient Western Digital Caviar GP at this point. Tom's Hardware- http://www.tomshardware.com 47
Side by side
WD s RE2 Range of drive Model Number Summary Older GMR Heads TuMR Heads Newer PMR Heads WD1600YS WD2500YS WD3200YS WD4000YS WD5000YS Directly to PMR Directly to PMR Directly to PMR WD4000ABYS WD5000ABYS WD1601ABYS WD2501ABYS WD3201ABYS WD4001ABYS WD5001ABYS WD5000ABPS WD7500AYYS WD7500AYPS WD1000FYPS 49
RE2 EX160 PMR vs. LMR Comparison Summary ABYS series 50
WD Internal comparison (WD7500AYYS & WD5000ABYS) WD7500AYYS RE2 Family PMR heads Reliability 1.2M Hours based 24x7 Expanded, RAID-focused quality assurance manufacturing process Enterprise hardware features StableTrack TM Tied Shaft Motor Anti-disk control Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load technology Enterprise firmware features TLER NCQ32 Intelliseek power saving technology WD5000ABYS RE2 Family TuMR heads Reliability 1.2M Hours based 24x7 Expanded, RAID-focused quality assurance manufacturing process Enterprise hardware features StableTrack TM Tied Shaft Motor Anti-disk control Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load technology Enterprise firmware features TLER NCQ32 Intelliseek power saving technology 51
WD Internal comparison (WD5000ABYS & WD5000YS) WD5000ABYS RE2 Family TuMR heads Reliability 1.2M Hours based 24x7 Expanded, RAID-focused quality assurance manufacturing process Enterprise hardware features StableTrack TM Tied Shaft Motor Anti-disk control Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load technology Enterprise firmware features TLER NCQ32 Intelliseek power saving technology WD5000YS RE2 Family GMR heads Reliability 1.2M Hours based 24x7 Expanded, RAID-focused quality assurance manufacturing process Enterprise hardware features StableTrack TM Tied Shaft Motor Anti-disk control Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load technology Enterprise firmware features TLER NCQ32 Intelliseek power saving technology Note: The WD4000ABYS & WD4000YS comparison would have exact same details as above 52
WD Internal comparison (WD3201ABYS & WD3200YS) WD3201ABYS RE2 PMR heads Reliability 1.2M Hours based 24x7 Expanded, RAID-focused quality assurance manufacturing process Enterprise hardware features StableTrack TM Tied Shaft Motor Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load technology Enterprise firmware features TLER NCQ32 Intelliseek power saving technology WD3200YS RE GMR heads Reliability 1.0M Hours based 24x7 Expanded, RAID-focused quality assurance manufacturing process Enterprise hardware features StableTrack TM Tied Shaft Motor Flutter Reduction Suspension (FRS) RAFF SecurePark TM Ramp load technology Enterprise firmware features TLER NCQ32 Intelliseek power saving technology Notes: The 250GB & 160GB comparison would have the same details as above 53
WD PATA series WD800AVJB New WD1600SB EOL now Replacement: WD1600AVJB WD2500SB EOL now Replacement: WD2500AVJB WD3200SB EOL now Replacement: WD3200AVJB WD5000AVJB New 54
Competitive Comparisons Data from Specification Sheets WD XL160M 500GB WD XL188 750GB Seagate 750GB Seagate 1TB Hitachi 1TB WD GP250M 1TB WD GP250M 500GB Power (Avg) Spin up (+12V avg) 1.4A 1.75A 2.8A 2.8A 2.0A 1.0A.7A Random Seek 15W 11W 12.6W 11.6W - 8W 7.7W Read/Write 8.5W 10W 13W 12W 13.6W 7.5W 6.5W Idle 8W 8.5W 9.3W 8W 9W 4.0W 4.0W Acoustics (Avg) Idle Sound Power 2.8BA 2.7BA 2.7BA 2.7BA 2.9BA 2.4BA 2.4BA Performance Mode 3.3BA 2.9BA 3.2BA not spec'd 3.2BA 2.9BA 2.9BA Quiet Mode 2.9BA 2.7BA 2.9BA 3.0BA 2.5BA 2.5BA Performance Spindle Start Time (avg) 12.5s 13s 15s not spec'd 20s 12s 12s Media Transfer Rate 972Mb/s 1208Mb/s 1030Mb/s not spec'd 1070Mb/s 1156Mb/s TBD 55
Total Cost of Ownership Note: All power consumption specifications were obtained via published manufacturers web sites Constrained by Chassis (Physical Number of Slots) WD500 WD750 WD1000 Brand B Brand B Brand B Brand A Brand A Brand A Duty Cycle 75% 500 750 1000 500 1000 750 500 750 1000 Capacity / Drive Number of Drives 5000 2500 3750 5000 2500 5000 3750 2500 3750 5000 Total Capacity (TB) 31325 32975 34625 46350 50100 50100 52125 55800 59475 Total Power (W) Annual Power Cost $79,029 $83,192 $87,355 $116,935 $126,396 $126,396 $131,505 $140,777 $150,048 Fixed Number of Drives Constrained by Capacity Point (System Design) WD1000 WD750 Brand B Brand A WD500 Brand B Brand A Brand B Brand A Duty Cycle 75% 1000 750 1000 1000 500 750 750 500 500 Capacity / Drive Total Storage (TB) 5000 5000 6667 5000 5000 10000 6667 6667 10000 10000 Number of Drives 34625 43967 50100 59475 62650 66800 74400 92700 104250 Total Power (W) Annual Power Cost $87,355 $110,923 $126,396 $150,048 $158,058 $168,528 $187,702 $233,871 $263,010 Fixed Total Storage WD GP brings Constrained by Power/Budget WD GP brings 71% more Brand A Brand B Brand A Brand B WD500 Brand A Brand B WD750 WD1000 93% more capacity! Duty Cycle 75% 500 capacity! 500 750 750 500 1000 1000 750 1000 Capacity / Drive Total Power (W) 25000 2398 2697 2240 2495 3990 2102 2495 3791 3610 Number of Drives 1199 1348 1680 1871 1995 2102 2495 2843 3610 Total Capacity (TB) Annual Power Cost $63,072 $63,072 $63,072 $63,072 $63,072 $63,072 $63,072 $63,072 $63,072 Fixed Total Power 56