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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 3!


The SuperTrak's RAID 3 and RAID 4 IOMeter performance...

Again, Promise assured us that our SuperTrak IOMeter results were representative of the card's performance. So with that in mind, let's take a look at the SuperTrak's RAID 3-4 IOMeter scores...

RAID 3...

Click here to jump to analysis text...

 Analysis Intel IOMeter - SuperTrak-100 RAID 3 w/ 3 Drives Analysis 
1 worker, 10 minutes, 30 second rampup
All LoadsLinearVery LightLightModerateHeavy
File Server Access PatternStorageReview.com
Total I/Os per second50.8351.4957.0061.5063.70
Total MBs per second0.560.550.620.660.69
Average I/O Response Time (ms)19.6777.64280.621039.514008.22
CPU Utilization (%)0.470.570.660.730.95
I/Os per % CPU Utilization108.1590.3386.3684.2567.05
Workstation Access PatternStorageReview.com
Total I/Os per second54.6655.9462.4666.3971.00
Total MBs per second0.430.440.490.520.55
Average I/O Response Time (ms)18.2971.49256.13962.843599.32
CPU Utilization (%)0.570.690.730.780.94
I/Os per % CPU Utilization95.8981.0785.5685.1275.53
Database Access PatternStorageReview.com
Total I/Os per second47.3347.8351.8251.8660.34
Total MBs per second0.370.370.400.430.47
Average I/O Response Time (ms)21.1283.60308.571165.194228.65
CPU Utilization (%)0.490.610.630.670.90
I/Os per % CPU Utilization96.5978.4182.2577.4067.04
Random Write PatternStorageReview.com
Total I/Os per second41.2342.5346.2148.8652.75
Total MBs per second0.320.330.360.380.41
Average I/O Response Time (ms)24.2594.04346.151308.474838.19
CPU Utilization (%)0.500.540.520.550.73
I/Os per % CPU Utilization82.4678.7688.8788.8472.26
Sequential Write PatternStorageReview.com
Total I/Os per second10.6810.7110.7110.7110.57
Total MBs per second2.672.682.682.682.64
Average I/O Response Time (ms)93.58373.481493.975977.9621690.53
CPU Utilization (%)0.460.430.480.580.56
I/Os per % CPU Utilization23.2224.9122.3118.4718.88

 Analysis Intel IOMeter - SuperTrak-100 RAID 3 w/ 4 Drives Analysis 
1 worker, 10 minutes, 30 second rampup
All LoadsLinearVery LightLightModerateHeavy
File Server Access PatternStorageReview.com
Total I/Os per second46.1746.9350.8653.3058.82
Total MBs per second0.500.500.550.570.64
Average I/O Response Time (ms)21.6686.22314.441198.864340.76
CPU Utilization (%)0.440.540.610.600.82
I/Os per % CPU Utilization104.9386.9183.3888.8371.73
Workstation Access PatternStorageReview.com
Total I/Os per second49.3349.9154.3158.4461.06
Total MBs per second0.390.390.420.460.48
Average I/O Response Time (ms)20.2780.13294.481093.774177.49
CPU Utilization (%)0.540.580.650.650.80
I/Os per % CPU Utilization91.3586.0583.5589.9176.33
Database Access PatternStorageReview.com
Total I/Os per second41.7542.5545.0047.6852.32
Total MBs per second0.330.330.350.370.41
Average I/O Response Time (ms)23.9593.97355.411340.094871.62
CPU Utilization (%)0.510.560.520.600.73
I/Os per % CPU Utilization81.8675.9886.5479.4771.67
Random Write PatternStorageReview.com
Total I/Os per second31.9832.3135.6038.3741.60
Total MBs per second0.250.250.280.300.32
Average I/O Response Time (ms)31.26123.75449.271665.336128.76
CPU Utilization (%)0.390.350.420.460.65
I/Os per % CPU Utilization82.0092.3184.7683.4164.00
Sequential Write PatternStorageReview.com
Total I/Os per second4.654.664.644.674.58
Total MBs per second1.161.161.161.171.14
Average I/O Response Time (ms)214.94858.293450.5513705.4249462.28
CPU Utilization (%)0.230.170.260.290.29
I/Os per % CPU Utilization20.2227.4117.8516.1015.79

Although RAID 3 isn't intended random I/O situations, the SuperTrak's RAID 3 performance is simply awful. These results are much, much worse than that of a single drive.

 The SuperTrak's RAID 4 IOMeter Performance...


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