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...

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Analysis  Intel IOMeter - SuperTrak-100 RAID 3 w/ 3 Drives  Analysis

1 worker, 10 minutes, 30 second rampup All Loads Linear Very Light Light Moderate Heavy File Server Access Pattern StorageReview.com Total I/Os per second 50.83 51.49 57.00 61.50 63.70 Total MBs per second 0.56 0.55 0.62 0.66 0.69 Average I/O Response Time (ms) 19.67 77.64 280.62 1039.51 4008.22 CPU Utilization (%) 0.47 0.57 0.66 0.73 0.95 I/Os per % CPU Utilization 108.15 90.33 86.36 84.25 67.05 Workstation Access Pattern StorageReview.com Total I/Os per second 54.66 55.94 62.46 66.39 71.00 Total MBs per second 0.43 0.44 0.49 0.52 0.55 Average I/O Response Time (ms) 18.29 71.49 256.13 962.84 3599.32 CPU Utilization (%) 0.57 0.69 0.73 0.78 0.94 I/Os per % CPU Utilization 95.89 81.07 85.56 85.12 75.53 Database Access Pattern StorageReview.com Total I/Os per second 47.33 47.83 51.82 51.86 60.34 Total MBs per second 0.37 0.37 0.40 0.43 0.47 Average I/O Response Time (ms) 21.12 83.60 308.57 1165.19 4228.65 CPU Utilization (%) 0.49 0.61 0.63 0.67 0.90 I/Os per % CPU Utilization 96.59 78.41 82.25 77.40 67.04 Random Write Pattern StorageReview.com Total I/Os per second 41.23 42.53 46.21 48.86 52.75 Total MBs per second 0.32 0.33 0.36 0.38 0.41 Average I/O Response Time (ms) 24.25 94.04 346.15 1308.47 4838.19 CPU Utilization (%) 0.50 0.54 0.52 0.55 0.73 I/Os per % CPU Utilization 82.46 78.76 88.87 88.84 72.26 Sequential Write Pattern StorageReview.com Total I/Os per second 10.68 10.71 10.71 10.71 10.57 Total MBs per second 2.67 2.68 2.68 2.68 2.64 Average I/O Response Time (ms) 93.58 373.48 1493.97 5977.96 21690.53 CPU Utilization (%) 0.46 0.43 0.48 0.58 0.56 I/Os per % CPU Utilization 23.22 24.91 22.31 18.47 18.88

Analysis  Intel IOMeter - SuperTrak-100 RAID 3 w/ 4 Drives  Analysis

1 worker, 10 minutes, 30 second rampup All Loads Linear Very Light Light Moderate Heavy File Server Access Pattern StorageReview.com Total I/Os per second 46.17 46.93 50.86 53.30 58.82 Total MBs per second 0.50 0.50 0.55 0.57 0.64 Average I/O Response Time (ms) 21.66 86.22 314.44 1198.86 4340.76 CPU Utilization (%) 0.44 0.54 0.61 0.60 0.82 I/Os per % CPU Utilization 104.93 86.91 83.38 88.83 71.73 Workstation Access Pattern StorageReview.com Total I/Os per second 49.33 49.91 54.31 58.44 61.06 Total MBs per second 0.39 0.39 0.42 0.46 0.48 Average I/O Response Time (ms) 20.27 80.13 294.48 1093.77 4177.49 CPU Utilization (%) 0.54 0.58 0.65 0.65 0.80 I/Os per % CPU Utilization 91.35 86.05 83.55 89.91 76.33 Database Access Pattern StorageReview.com Total I/Os per second 41.75 42.55 45.00 47.68 52.32 Total MBs per second 0.33 0.33 0.35 0.37 0.41 Average I/O Response Time (ms) 23.95 93.97 355.41 1340.09 4871.62 CPU Utilization (%) 0.51 0.56 0.52 0.60 0.73 I/Os per % CPU Utilization 81.86 75.98 86.54 79.47 71.67 Random Write Pattern StorageReview.com Total I/Os per second 31.98 32.31 35.60 38.37 41.60 Total MBs per second 0.25 0.25 0.28 0.30 0.32 Average I/O Response Time (ms) 31.26 123.75 449.27 1665.33 6128.76 CPU Utilization (%) 0.39 0.35 0.42 0.46 0.65 I/Os per % CPU Utilization 82.00 92.31 84.76 83.41 64.00 Sequential Write Pattern StorageReview.com Total I/Os per second 4.65 4.66 4.64 4.67 4.58 Total MBs per second 1.16 1.16 1.16 1.17 1.14 Average I/O Response Time (ms) 214.94 858.29 3450.55 13705.42 49462.28 CPU Utilization (%) 0.23 0.17 0.26 0.29 0.29 I/Os per % CPU Utilization 20.22 27.41 17.85 16.10 15.79

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...