Seagate 7200 vs wd 5400
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Seagate 7200 vs wd 5400

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Compare Seagate 7.2K hard disk with WD 5.4K power saving hard disk

Compare Seagate 7.2K hard disk with WD 5.4K power saving hard disk

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Seagate 7200 vs wd 5400 Seagate 7200 vs wd 5400 Presentation Transcript

  • Seagate 7200 .vs WD 5400
    Tang Jie
  • Target
    As the WD have the power saving serial HDs which named as WD2002FYPS and WD1000FYPS. So want to compare with Seagate 1T/2T 7200 ES SATA hard disks to see the possibility to save the power consumption.
    The compare based on IOPS and power consumption two side
    Confidential
    2
  • Conclusion
    IOPS performance low than 15% when change the ST to WD a.
    No benefit on the peak power consumption 304(WD):305(ST)
    Don’t consider this method now.
    Based on the per day data of power consumption, the WD may have more advantage of power consumption if we can the method to SPECpower. I try to do this later.
    Confidential
    3
  • Test Machine
    R710
    2X X5570
    6X 4G RDIMM 1066
    6 X HDs
    OS RHEL 5.4
    Method : Using iDRAC6 to monitor the power consumption of system and the power number exclude the PSU. Just want to compare the result of hard disks change.
    Confidential
    4
  • HDs performance
    Using Orion to testing the 8K random write and read
    As the hard disks RPM will impact the random IOPS than sequential, so only test the random.
    Testing command line:
    Read
    ./orion -run advanced -testname read_8k_rand -num_disks 5 -size_small 8 -size_large 8 -matrix row -num_large 0 -type rand
    Write
    /orion -run advanced -testname write_8k_rand -num_disks 5 -size_small 8 -size_large 8 -matrix row -num_large 0 -type rand -write 100
    Confidential
    5
  • Read IOPS
    Confidential
    6
  • Write IOPS
    Confidential
    7
  • Performance result
    Read IOPS WD low than 15% percent compare to ST
    Confidential
    8
  • Power Consumption
    Run the linux stress utility
    Stress --cpu 32 --io 32 --vm 32 --hdd 16
    Put the system in the high workload around 38 mins to see the result from iDrac6 power monitor
    Confidential
    9
  • Seagate Power
    Confidential
    10
    Peak : 305W
  • WD Power
    Confidential
    11
    Peak : 304W
  • Power consumption by days
    Confidential
    12
    WD
    ST
  • Currency per Day
    Confidential
    13
    WD
    ST