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Battle of the Titans: Promise SuperTrak 100 vs. 3Ware Escalade 6400


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Battle of the Titans: Promise SuperTrak 100 vs. 3Ware Escalade 6400
  February 14, 2001 Author: Terry Baranski  

Confused? The StorageReview.com RAID Guide explains RAID 4!


RAID 4...

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 Analysis Intel IOMeter - SuperTrak-100 RAID 4 w/ 3 Drives Analysis 
1 worker, 10 minutes, 30 second rampup
All LoadsLinearVery LightLightModerateHeavy
File Server Access PatternStorageReview.com
Total I/Os per second60.2560.5366.7473.0680.46
Total MBs per second0.640.650.730.790.87
Average I/O Response Time (ms)16.5966.08239.72875.433172.52
CPU Utilization (%)0.550.680.780.811.14
I/Os per % CPU Utilization109.5589.0185.5690.2070.58
Workstation Access PatternStorageReview.com
Total I/Os per second69.2269.4976.1283.3491.64
Total MBs per second0.540.540.590.650.72
Average I/O Response Time (ms)14.4457.55210.18767.462788.70
CPU Utilization (%)0.710.790.850.881.32
I/Os per % CPU Utilization97.4987.9689.5594.7069.42
Database Access PatternStorageReview.com
Total I/Os per second63.0763.6568.6574.1780.57
Total MBs per second0.490.500.540.580.63
Average I/O Response Time (ms)15.8562.84232.99862.253168.00
CPU Utilization (%)0.670.700.790.911.16
I/Os per % CPU Utilization94.1390.9386.9081.5169.46
Random Write PatternStorageReview.com
Total I/Os per second64.6265.3771.6576.3281.08
Total MBs per second0.500.510.560.600.63
Average I/O Response Time (ms)15.4761.17223.21838.113150.54
CPU Utilization (%)0.680.700.800.821.14
I/Os per % CPU Utilization95.0393.3989.5693.0771.12
Sequential Write PatternStorageReview.com
Total I/Os per second27.4727.5527.5527.5527.01
Total MBs per second6.876.896.896.896.75
Average I/O Response Time (ms)36.40145.17580.732323.088538.92
CPU Utilization (%)1.131.111.201.781.49
I/Os per % CPU Utilization24.3124.8222.9615.4818.13

 Analysis Intel IOMeter - SuperTrak-100 RAID 4 w/ 4 Drives Analysis 
1 worker, 10 minutes, 30 second rampup
All LoadsLinearVery LightLightModerateHeavy
File Server Access PatternStorageReview.com
Total I/Os per second59.4359.6864.7371.6380.27
Total MBs per second0.640.650.700.770.87
Average I/O Response Time (ms)16.8267.01247.11893.083181.62
CPU Utilization (%)0.550.700.790.851.20
I/Os per % CPU Utilization108.0585.2681.9484.2766.89
Workstation Access PatternStorageReview.com
Total I/Os per second68.0568.3573.3280.8989.83
Total MBs per second0.530.530.570.630.70
Average I/O Response Time (ms)14.6958.51218.14790.542843.64
CPU Utilization (%)0.690.770.890.881.18
I/Os per % CPU Utilization98.6288.7782.3891.9276.13
Database Access PatternStorageReview.com
Total I/Os per second61.9261.8766.2972.1680.09
Total MBs per second0.480.480.520.560.63
Average I/O Response Time (ms)16.1564.65241.34886.313189.88
CPU Utilization (%)0.670.670.790.841.10
I/Os per % CPU Utilization92.4292.3483.9185.9072.81
Random Write PatternStorageReview.com
Total I/Os per second60.1861.9168.6273.8578.38
Total MBs per second0.470.480.540.580.61
Average I/O Response Time (ms)16.6164.61233.07866.133259.21
CPU Utilization (%)0.580.690.730.891.05
I/Os per % CPU Utilization103.7689.7294.0082.9874.65
Sequential Write PatternStorageReview.com
Total I/Os per second31.4531.5531.5631.5630.67
Total MBs per second7.867.897.897.897.67
Average I/O Response Time (ms)31.79126.77506.882027.807520.44
CPU Utilization (%)1.261.231.311.691.53
I/Os per % CPU Utilization24.9625.6524.0918.6720.05

While the SuperTrak's RAID 4 scores improve over RAID 3, results are still significantly worse than that of a single drive. There's virtually no performance improvement when moving from three to four drives... something that should surprise no one by this point.

 Conclusion...


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