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Test Setup And Transfer Diagrams

3.5" Vs. 2.5" SAS HDDs: In Storage, Size Matters
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System Hardware
HardwareDetails
CPUIntel Core i7-920 (45 nm, 2.66 GHz, 8MB L3 Cache)
Motherboard
(Socket 1366)
Supermicro X8SAX; Revision: 1.1; Chipset: Intel X58 + ICH10R; BIOS: 1.0B
RAM3GB DDR3-1333 Corsair CM3X1024-1333C9DHX
System HDDSeagate NL35 400GB
ST3400832NS; 7,200 RPM, SATA 1.5Gb/s, 8MB Cache
Test HDDs3.5” 15,000 RPM (Fujitsu MBA3147RC)
2.5” 10,000 RPM (Toshiba MBF2600RC)
Power SupplyOCZ EliteXstream 800W
OCZ800EXS-EU
Benchmarks
Performance Measurementsh2benchw 3.12
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
DriverDetails
Operating SystemWindows Vista Ultimate SP1
Intel ChipsetChipset Installation Utility 9.1.0.1007
AMD GraphicsRadeon 8.12
Intel Matrix Storage8.7.0.1007


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  • 1 Hide
    lloydie_p , 9 May 2010 08:39
    "you can easily imagine that a simple RAID with four 3.5” drives could be replaced by six to ten 2.5” drives".

    With the drives mentioned at max throughput 10 x 2.5(15K) would draw 73 watts versus the 59 watts of the 4 x 3.5(15K 600GB) an considering the 4 x 3.5 would = 2.4TB of space and 10 x 2.5 only 1.4TB; unless no one considers capacity I don't see how 2.5 inch drives make for the best compromises.

  • 0 Hide
    andybird123 , 10 May 2010 23:34
    this article does talk about the trade off on throughput and performance per watt, versus raw capacity, but you are right, it's a trade off - at the same price point you can either go for 1.4TB of very fast storage space, or 2.4TB of fast storage

    if you were mainly interested in storage space you could get 4 x 1TB 7200rpm SAS drives for around the same price
  • 0 Hide
    shanky887614 , 10 August 2010 00:52
    this is not realy a valid test

    2.5inch drives where originally designed for laptops hence the small form factor and low power

    so it makes sence they will lose to speed and capacity of there 3.5 inch cosins
  • 0 Hide
    BulkZerker , 11 August 2010 23:53
    shanky887614this is not realy a valid test2.5inch drives where originally designed for laptops hence the small form factor and low power so it makes sence they will lose to speed and capacity of there 3.5 inch cosins


    Howso? Really the future for mass server storage seems to be migrating to 2.5" so it makes sense to see what the tradeoff is.

    Also, everyone who is reporting the spammers please mark them down as well as reporting them so people know they've been reported.