Seagate 7200 .vs WD 5400<br />Tang Jie<br />
Target<br />As the WD have the power saving serial HDs which named as WD2002FYPS and WD1000FYPS. So want to compare with S...
Conclusion<br />IOPS performance low than 15% when change the ST to WD a.<br /> No benefit on the peak power consumption 3...
Test Machine<br />R710 <br />2X  X5570<br />6X 4G RDIMM 1066<br />6 X HDs<br />OS   RHEL 5.4<br />Method : Using iDRAC6 to...
HDs performance<br />Using Orion to testing the 8K random write and read <br />As the hard disks RPM will impact the rando...
Read IOPS<br />Confidential<br />6<br />
Write IOPS<br />Confidential<br />7<br />
Performance result<br />Read IOPS  WD low than 15% percent compare to ST<br />Confidential<br />8<br />
Power Consumption<br />Run the linux stress utility<br />Stress --cpu 32 --io 32 --vm 32 --hdd 16 <br />Put the system in ...
Seagate Power<br />Confidential<br />10<br />Peak : 305W<br />
WD Power<br />Confidential<br />11<br />Peak : 304W<br />
Power consumption by days <br />Confidential<br />12<br />WD<br />ST<br />
Currency per Day <br />Confidential<br />13<br />WD<br />ST<br />
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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

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Seagate 7200 vs wd 5400

  1. 1. Seagate 7200 .vs WD 5400<br />Tang Jie<br />
  2. 2. Target<br />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.<br />The compare based on IOPS and power consumption two side<br />Confidential<br />2<br />
  3. 3. Conclusion<br />IOPS performance low than 15% when change the ST to WD a.<br /> No benefit on the peak power consumption 304(WD):305(ST)<br />Don’t consider this method now.<br />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.<br />Confidential<br />3<br />
  4. 4. Test Machine<br />R710 <br />2X X5570<br />6X 4G RDIMM 1066<br />6 X HDs<br />OS RHEL 5.4<br />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.<br />Confidential<br />4<br />
  5. 5. HDs performance<br />Using Orion to testing the 8K random write and read <br />As the hard disks RPM will impact the random IOPS than sequential, so only test the random.<br />Testing command line:<br />Read <br /> ./orion -run advanced -testname read_8k_rand -num_disks 5 -size_small 8 -size_large 8 -matrix row -num_large 0 -type rand <br />Write<br />/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 <br />Confidential<br />5<br />
  6. 6. Read IOPS<br />Confidential<br />6<br />
  7. 7. Write IOPS<br />Confidential<br />7<br />
  8. 8. Performance result<br />Read IOPS WD low than 15% percent compare to ST<br />Confidential<br />8<br />
  9. 9. Power Consumption<br />Run the linux stress utility<br />Stress --cpu 32 --io 32 --vm 32 --hdd 16 <br />Put the system in the high workload around 38 mins to see the result from iDrac6 power monitor <br />Confidential<br />9<br />
  10. 10. Seagate Power<br />Confidential<br />10<br />Peak : 305W<br />
  11. 11. WD Power<br />Confidential<br />11<br />Peak : 304W<br />
  12. 12. Power consumption by days <br />Confidential<br />12<br />WD<br />ST<br />
  13. 13. Currency per Day <br />Confidential<br />13<br />WD<br />ST<br />

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