Three 2.5" SAS Drives: Enterprise Data Giants, Compared

Comparison Table, Test Configuration, And Transfer Diagrams

Comparison Table

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FamilyUltrastar C10K600Constellation.2Savvio 10K.5
Form factor2.5“2.5“2.5“
Capacity600 GB1000 GB900 GB
RPM10 000 RPM7200 RPM10 000 RPM
Further capacities450, 300 GB250, 500 GB600, 450, 300 GB
Cache64 MB64 MB64 MB
InterfaceSAS 6Gb/sSAS 6Gb/sSAS 6Gb/s
Operating temperature5-55 °C5-60 °C5-55 °C
No-load power according to spec3.1 W3.9 W4.4 W
No-load power according to test3.6 W4.3 W5.0 W
Operating shock (2 ms, Read)60 G70 G40 G
Warranty5 years5 years5 years

Test Setup

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System Hardware
CPUIntel Core i7-920 (Bloomfield) (45 nm, 2.66 GHz, 8 MB L3 Cache)
Motherboard(Socket 1366)Supermicro X8SAX, Revision: 1.1, Chipset: Intel X58 + ICH10R, BIOS: 1.0B
RAM3 x 1 GB DDR3-1333 Corsair CM3X1024-1333C9DHX
HDDSeagate NL35 400 GB, ST3400832NS, 7200 RPM, SATA 1.5Gb/s, 8 MB Cache
Storage ControllerHighPoint Rocket 620, Marvell 88SE9128
PSUOCZ EliteXstream 800 W, OCZ800EXS-EU
Performance Measurementsh2benchw 3.13 PCMark Vantage 1.0
I/O PerformanceIOMeter 2006.07.27 Fileserver-Benchmark Webserver-Benchmark Database-Benchmark Workstation-Benchmark Streaming Reads Streaming Writes
System-Software & Drivers
Operating SystemWindows Vista Ultimate SP1

Transfer Diagrams

  • compton
    Toms with some more review niceness. Thanks for another interesting article. I don't think mechanical storage is going anywhere soon. For better and worse we'll still have it around for a long, long time to come. Even when SSDs hit that magical speed/capacity/cost point to be ubiquitous for mainstream consumers, enterprises will still need HDDs as part of their storage needs. HDDs are at least a known quantity that are still getting better.
  • bit_user
    3rd paragraph: "have to be taken into considered". You also didn't mention capacity and cost/GB, where mechanical disks still reign supreme.

    Also, why not benchmark a 3.5" disk, but only use the outer portion. If both that and a 2.5" have the same density and rotational velocity, then the 3.5" should win due to higher I/O speeds resulting from higher linear velocity.