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Seagate 7200 vs wd 5400
 

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