...
ディスクのストライプサイズはデフォルトの64K固定です。
1Disk-RAID0 WriteThrough
Image RemovedImage Removed
チャート |
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imageFormat | png |
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orientation | horizontal |
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forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WT-1disk IOPS |
---|
type | bar |
---|
rangeAxisUpperBound | 100000 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read IOps | Write IOps |
---|
512 B; 100% Read; 0% random_QD1 | 7719.8 | 0.0 |
---|
512 B; 100% Read; 0% random_QD32 | 89650.8 | 0.0 |
---|
512 B; 50% Read; 0% random_QD1 | 1024.9 | 1033.2 |
---|
512 B; 50% Read; 0% random_QD32 | 3658.0 | 3661.1 |
---|
512 B; 0% Read; 0% random_QD1 | 0.0 | 6650.8 |
---|
512 B; 0% Read; 0% random_QD32 | 0.0 | 74875.2 |
---|
4 KiB; 100% Read; 0% random_QD1 | 6387.1 | 0.0 |
---|
4 KiB; 100% Read; 0% random_QD32 | 68688.0 | 0.0 |
---|
4 KiB; 50% Read; 0% random_QD1 | 1893.0 | 1891.0 |
---|
4 KiB; 50% Read; 0% random_QD32 | 15382.8 | 15404.2 |
---|
4 KiB; 0% Read; 0% random_QD1 | 0.0 | 6349.2 |
---|
4 KiB; 0% Read; 0% random_QD32 | 0.0 | 52811.1 |
---|
256 KiB; 100% Read; 0% random_QD1 | 1206.0 | 0.0 |
---|
256 KiB; 100% Read; 0% random_QD32 | 1714.4 | 0.0 |
---|
256 KiB; 50% Read; 0% random_QD1 | 353.4 | 346.6 |
---|
256 KiB; 50% Read; 0% random_QD32 | 515.9 | 514.8 |
---|
256 KiB; 0% Read; 0% random_QD1 | 0.0 | 1080.9 |
---|
256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1218.1 |
---|
1M-Seq-100%R_QD1 | 415.6 | 0.0 |
---|
1M-Seq-100%R_QD32 | 428.7 | 0.0 |
---|
1M-Seq-50%R_QD1 | 133.6 | 137.6 |
---|
1M-Seq-50%R_QD32 | 132.6 | 131.1 |
---|
1M-Seq-100%W_QD1 | 0.0 | 307.9 |
---|
1M-Seq-100%W_QD32 | 0.0 | 304.1 |
---|
1M-rand-100%R_QD1 | 317.9 | 0.0 |
---|
1M-rand-100%R_QD32 | 410.7 | 0.0 |
---|
1M-rand-50%R_QD1 | 133.3 | 138.1 |
---|
1M-rand-50%R_QD32 | 134.9 | 134.9 |
---|
1M-rand-100%W_QD1 | 0.0 | 308.3 |
---|
1M-rand-100%W_QD32 | 0.0 | 299.8 |
---|
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WT-1disk MB/s |
---|
type | bar |
---|
rangeAxisUpperBound | 2500 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) |
---|
512 B; 100% Read; 0% random_QD1 | 4.0 | 0.0 |
---|
512 B; 100% Read; 0% random_QD32 | 45.9 | 0.0 |
---|
512 B; 50% Read; 0% random_QD1 | 0.5 | 0.5 |
---|
512 B; 50% Read; 0% random_QD32 | 1.9 | 1.9 |
---|
512 B; 0% Read; 0% random_QD1 | 0.0 | 3.4 |
---|
512 B; 0% Read; 0% random_QD32 | 0.0 | 38.3 |
---|
4 KiB; 100% Read; 0% random_QD1 | 26.2 | 0.0 |
---|
4 KiB; 100% Read; 0% random_QD32 | 281.3 | 0.0 |
---|
4 KiB; 50% Read; 0% random_QD1 | 7.8 | 7.7 |
---|
4 KiB; 50% Read; 0% random_QD32 | 63.0 | 63.1 |
---|
4 KiB; 0% Read; 0% random_QD1 | 0.0 | 26.0 |
---|
4 KiB; 0% Read; 0% random_QD32 | 0.0 | 216.3 |
---|
256 KiB; 100% Read; 0% random_QD1 | 316.1 | 0.0 |
---|
256 KiB; 100% Read; 0% random_QD32 | 449.4 | 0.0 |
---|
256 KiB; 50% Read; 0% random_QD1 | 92.6 | 90.9 |
---|
256 KiB; 50% Read; 0% random_QD32 | 135.2 | 134.9 |
---|
256 KiB; 0% Read; 0% random_QD1 | 0.0 | 283.4 |
---|
256 KiB; 0% Read; 0% random_QD32 | 0.0 | 319.3 |
---|
1M-Seq-100%R_QD1 | 435.8 | 0.0 |
---|
1M-Seq-100%R_QD32 | 449.5 | 0.0 |
---|
1M-Seq-50%R_QD1 | 140.1 | 144.3 |
---|
1M-Seq-50%R_QD32 | 139.1 | 137.4 |
---|
1M-Seq-100%W_QD1 | 0.0 | 322.8 |
---|
1M-Seq-100%W_QD32 | 0.0 | 318.8 |
---|
1M-rand-100%R_QD1 | 333.3 | 0.0 |
---|
1M-rand-100%R_QD32 | 430.7 | 0.0 |
---|
1M-rand-50%R_QD1 | 139.8 | 144.8 |
---|
1M-rand-50%R_QD32 | 141.5 | 141.5 |
---|
1M-rand-100%W_QD1 | 0.0 | 323.3 |
---|
1M-rand-100%W_QD32 | 0.0 | 314.4 |
---|
|
何気にAHCIよりIO性能が高い…。SSD自体に256MBのDRAMが載っているので、そもそもカード自体のDRAMが不要な可能性があります。
CDMの4G、100MBリードの参考値です。ちなみにDiskcacheを無効にするとシーケンシャルでも書き込みが45MB/s程度まで落ちました。
Image Added | Image Added |
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1Disk-RAID0 WriteBack
Image RemovedImage Removed
5GBというキャッシュに乗り切らないサイズのせいか、違いがぜんぜんわからん!
WTモード時とのデータの向上率の比較をしてみる
Image Removed
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WB-1disk IOPS |
---|
type | bar |
---|
rangeAxisUpperBound | 100000 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read IOps | Write IOps | 512 B; 100% Read; 0% random_QD1 | 4301.6 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 87637.2 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 2087.8 | 2095.7 | 512 B; 50% Read; 0% random_QD32 | 10308.4 | 10368.4 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 13426.3 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 45188.0 | 4 KiB; 100% Read; 0% random_QD1 | 4165.8 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 48356.3 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 1878.2 | 1860.2 | 4 KiB; 50% Read; 0% random_QD32 | 13939.2 | 13922.0 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 12120.9 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 30910.1 | 256 KiB; 100% Read; 0% random_QD1 | 1191.3 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 1780.1 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 378.6 | 376.6 | 256 KiB; 50% Read; 0% random_QD32 | 402.7 | 402.1 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 1218.4 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1218.0 | 1M-Seq-100%R_QD1 | 416.3 | 0.0 | 1M-Seq-100%R_QD32 | 447.9 | 0.0 | 1M-Seq-50%R_QD1 | 128.7 | 129.8 | 1M-Seq-50%R_QD32 | 122.3 | 120.3 | 1M-Seq-100%W_QD1 | 0.0 | 305.9 | 1M-Seq-100%W_QD32 | 0.0 | 305.4 | 1M-rand-100%R_QD1 | 292.7 | 0.0 | 1M-rand-100%R_QD32 | 305.9 | 0.0 | 1M-rand-50%R_QD1 | 119.6 | 117.5 | 1M-rand-50%R_QD32 | 110.5 | 111.5 | 1M-rand-100%W_QD1 | 0.0 | 285.2 | 1M-rand-100%W_QD32 | 0.0 | 282.1 |
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WB-1disk MB/s |
---|
type | bar |
---|
rangeAxisUpperBound | 2500 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | 512 B; 100% Read; 0% random_QD1 | 2.2 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 44.9 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 1.1 | 1.1 | 512 B; 50% Read; 0% random_QD32 | 5.3 | 5.3 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 6.9 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 23.1 | 4 KiB; 100% Read; 0% random_QD1 | 17.1 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 198.1 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 7.7 | 7.6 | 4 KiB; 50% Read; 0% random_QD32 | 57.1 | 57.0 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 49.6 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 126.6 | 256 KiB; 100% Read; 0% random_QD1 | 312.3 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 466.6 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 99.3 | 98.7 | 256 KiB; 50% Read; 0% random_QD32 | 105.6 | 105.4 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 319.4 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 319.3 | 1M-Seq-100%R_QD1 | 436.6 | 0.0 | 1M-Seq-100%R_QD32 | 469.6 | 0.0 | 1M-Seq-50%R_QD1 | 134.9 | 136.1 | 1M-Seq-50%R_QD32 | 128.2 | 126.2 | 1M-Seq-100%W_QD1 | 0.0 | 320.8 | 1M-Seq-100%W_QD32 | 0.0 | 320.3 | 1M-rand-100%R_QD1 | 306.9 | 0.0 | 1M-rand-100%R_QD32 | 320.7 | 0.0 | 1M-rand-50%R_QD1 | 125.4 | 123.3 | 1M-rand-50%R_QD32 | 115.8 | 116.9 | 1M-rand-100%W_QD1 | 0.0 | 299.1 | 1M-rand-100%W_QD32 | 0.0 | 295.8 |
|
5GBというキャッシュに乗り切らないサイズのせいか、違いがぜんぜんわからん!
WTモード時とのデータの向上率の比較をしてみる
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
dataDisplay | after |
---|
forgive | false |
---|
width | 1000 |
---|
dataOrientation | vertical |
---|
title | WB時増分 |
---|
type | bar |
---|
yLabel | WT vs WB (%) |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | 対WT比Read IOps 増分(%) | 対WT比Write IOps増分(%) |
---|
512 B; 100% Read; 0% random_QD1 | -44.2784 | 0 |
---|
512 B; 100% Read; 0% random_QD32 | -2.24602 | 0 |
---|
512 B; 50% Read; 0% random_QD1 | 103.7055 | 102.828 |
---|
512 B; 50% Read; 0% random_QD32 | 181.8043 | 183.2034 |
---|
512 B; 0% Read; 0% random_QD1 | 0 | 101.8742 |
---|
512 B; 0% Read; 0% random_QD32 | 0 | -39.6489 |
---|
4 KiB; 100% Read; 0% random_QD1 | -34.7772 | 0 |
---|
4 KiB; 100% Read; 0% random_QD32 | -29.6001 | 0 |
---|
4 KiB; 50% Read; 0% random_QD1 | -0.77824 | -1.62854 |
---|
4 KiB; 50% Read; 0% random_QD32 | -9.38483 | -9.62174 |
---|
4 KiB; 0% Read; 0% random_QD1 | 0 | 90.90597 |
---|
4 KiB; 0% Read; 0% random_QD32 | 0 | -41.4706 |
---|
256 KiB; 100% Read; 0% random_QD1 | -1.21428 | 0 |
---|
256 KiB; 100% Read; 0% random_QD32 | 3.831043 | 0 |
---|
256 KiB; 50% Read; 0% random_QD1 | 7.140573 | 8.666481 |
---|
256 KiB; 50% Read; 0% random_QD32 | -21.9534 | -21.8982 |
---|
256 KiB; 0% Read; 0% random_QD1 | 0 | 12.71637 |
---|
256 KiB; 0% Read; 0% random_QD32 | 0 | -0.00466 |
---|
1M-Seq-100%R_QD1 | 0.183323 | 0 |
---|
1M-Seq-100%R_QD32 | 4.469601 | 0 |
---|
1M-Seq-50%R_QD1 | -3.69594 | -5.69608 |
---|
1M-Seq-50%R_QD32 | -7.78602 | -8.20952 |
---|
1M-Seq-100%W_QD1 | 0 | -0.63321 |
---|
1M-Seq-100%W_QD32 | 0 | 0.440793 |
---|
1M-rand-100%R_QD1 | -7.9101 | 0 |
---|
1M-rand-100%R_QD32 | -25.5283 | 0 |
---|
1M-rand-50%R_QD1 | -10.3011 | -14.8897 |
---|
1M-rand-50%R_QD32 | -18.1436 | -17.3741 |
---|
1M-rand-100%W_QD1 | 0 | -7.48275 |
---|
1M-rand-100%W_QD32 | 0 | -5.91396 |
---|
|
0%でキャッシュ無し時と同じなので、512 B; 100% Read; 0% random_QD1の-44%というのは、キャッシュを有効にすると逆に性能劣化が起きてキャッシュ無しの半分の性能になっているパターンです。
...
WBの効果が出ているかCDMも走らせてみましたが、キャッシュに収まる100MBでテストしたところキャッシュ速度はずいぶんと速いようです。
Image Added | Image Added |
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4Disk-RAID0 WT
Image RemovedImage Removed
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WT-4disk IOPS |
---|
type | bar |
---|
rangeAxisUpperBound | 100000 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read IOps | Write IOps | 512 B; 100% Read; 0% random_QD1 | 6940.8 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 91156.4 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 1078.9 | 1072.4 | 512 B; 50% Read; 0% random_QD32 | 5258.6 | 5237.9 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 6781.9 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 65642.9 | 4 KiB; 100% Read; 0% random_QD1 | 6246.8 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 65568.3 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 1915.8 | 1916.8 | 4 KiB; 50% Read; 0% random_QD32 | 16575.2 | 16536.7 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 6829.7 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 53894.7 | 256 KiB; 100% Read; 0% random_QD1 | 2444.3 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 6789.3 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 560.9 | 568.0 | 256 KiB; 50% Read; 0% random_QD32 | 1634.7 | 1638.7 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 2288.9 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 4825.3 | 1M-Seq-100%R_QD1 | 1179.9 | 0.0 | 1M-Seq-100%R_QD32 | 1702.7 | 0.0 | 1M-Seq-50%R_QD1 | 295.7 | 294.4 | 1M-Seq-50%R_QD32 | 406.8 | 407.8 | 1M-Seq-100%W_QD1 | 0.0 | 956.3 | 1M-Seq-100%W_QD32 | 0.0 | 1206.7 | 1M-rand-100%R_QD1 | 835.5 | 0.0 | 1M-rand-100%R_QD32 | 1660.5 | 0.0 | 1M-rand-50%R_QD1 | 311.4 | 308.7 | 1M-rand-50%R_QD32 | 447.0 | 443.2 | 1M-rand-100%W_QD1 | 0.0 | 842.0 | 1M-rand-100%W_QD32 | 0.0 | 1191.1 |
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WT-4disk MB/s |
---|
type | bar |
---|
rangeAxisUpperBound | 2500 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | 512 B; 100% Read; 0% random_QD1 | 3.6 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 46.7 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 0.6 | 0.5 | 512 B; 50% Read; 0% random_QD32 | 2.7 | 2.7 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 3.5 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 33.6 | 4 KiB; 100% Read; 0% random_QD1 | 25.6 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 268.6 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 7.8 | 7.9 | 4 KiB; 50% Read; 0% random_QD32 | 67.9 | 67.7 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 28.0 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 220.8 | 256 KiB; 100% Read; 0% random_QD1 | 640.7 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 1779.8 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 147.0 | 148.9 | 256 KiB; 50% Read; 0% random_QD32 | 428.5 | 429.6 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 600.0 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1264.9 | 1M-Seq-100%R_QD1 | 1237.2 | 0.0 | 1M-Seq-100%R_QD32 | 1785.4 | 0.0 | 1M-Seq-50%R_QD1 | 310.1 | 308.7 | 1M-Seq-50%R_QD32 | 426.6 | 427.6 | 1M-Seq-100%W_QD1 | 0.0 | 1002.7 | 1M-Seq-100%W_QD32 | 0.0 | 1265.3 | 1M-rand-100%R_QD1 | 876.1 | 0.0 | 1M-rand-100%R_QD32 | 1741.2 | 0.0 | 1M-rand-50%R_QD1 | 326.5 | 323.7 | 1M-rand-50%R_QD32 | 468.7 | 464.7 | 1M-rand-100%W_QD1 | 0.0 | 882.9 | 1M-rand-100%W_QD32 | 0.0 | 1249.0 |
|
IOPS的にいえば1ディスク構成時の90kからあまり増加はないので、コントローラ的には90kIOPSくらいが限界のようです。
...
HDDを16台くらいぶら下げれば、帯域の方はシーケンシャルIOで上限にあたる可能性がありますが、それなりにがんばらないと到達できないと思います。
4Disk-RAID0 WB
Image RemovedImage Removed
例によってWT/WBの対比が分からないので増分
Image Removed
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WT-4disk IOPS |
---|
type | bar |
---|
rangeAxisUpperBound | 100000 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read IOps | Write IOps | 512 B; 100% Read; 0% random_QD1 | 4276.1 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 81612.7 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 2214.9 | 2201.7 | 512 B; 50% Read; 0% random_QD32 | 14851.0 | 14866.8 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 13579.5 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 44799.9 | 4 KiB; 100% Read; 0% random_QD1 | 5287.8 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 59036.2 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 2001.1 | 1975.5 | 4 KiB; 50% Read; 0% random_QD32 | 15599.8 | 15597.6 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 12209.6 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 29762.4 | 256 KiB; 100% Read; 0% random_QD1 | 2122.1 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 6870.3 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 660.0 | 656.2 | 256 KiB; 50% Read; 0% random_QD32 | 1648.0 | 1673.6 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 2127.6 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 3935.9 | 1M-Seq-100%R_QD1 | 1150.8 | 0.0 | 1M-Seq-100%R_QD32 | 1744.7 | 0.0 | 1M-Seq-50%R_QD1 | 285.3 | 281.9 | 1M-Seq-50%R_QD32 | 394.7 | 393.1 | 1M-Seq-100%W_QD1 | 0.0 | 757.1 | 1M-Seq-100%W_QD32 | 0.0 | 1052.7 | 1M-rand-100%R_QD1 | 826.2 | 0.0 | 1M-rand-100%R_QD32 | 1739.8 | 0.0 | 1M-rand-50%R_QD1 | 297.3 | 289.7 | 1M-rand-50%R_QD32 | 465.1 | 458.2 | 1M-rand-100%W_QD1 | 0.0 | 753.9 | 1M-rand-100%W_QD32 | 0.0 | 1025.4 |
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid0-WT-4disk MB/s |
---|
type | bar |
---|
rangeAxisUpperBound | 2500 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | 512 B; 100% Read; 0% random_QD1 | 2.2 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 41.8 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 1.1 | 1.1 | 512 B; 50% Read; 0% random_QD32 | 7.6 | 7.6 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 7.0 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 22.9 | 4 KiB; 100% Read; 0% random_QD1 | 21.7 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 241.8 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 8.2 | 8.1 | 4 KiB; 50% Read; 0% random_QD32 | 63.9 | 63.9 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 50.0 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 121.9 | 256 KiB; 100% Read; 0% random_QD1 | 556.3 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 1801.0 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 173.0 | 172.0 | 256 KiB; 50% Read; 0% random_QD32 | 432.0 | 438.7 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 557.7 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1031.8 | 1M-Seq-100%R_QD1 | 1206.7 | 0.0 | 1M-Seq-100%R_QD32 | 1829.4 | 0.0 | 1M-Seq-50%R_QD1 | 299.2 | 295.6 | 1M-Seq-50%R_QD32 | 413.9 | 412.2 | 1M-Seq-100%W_QD1 | 0.0 | 793.9 | 1M-Seq-100%W_QD32 | 0.0 | 1103.9 | 1M-rand-100%R_QD1 | 866.3 | 0.0 | 1M-rand-100%R_QD32 | 1824.4 | 0.0 | 1M-rand-50%R_QD1 | 311.7 | 303.7 | 1M-rand-50%R_QD32 | 487.7 | 480.5 | 1M-rand-100%W_QD1 | 0.0 | 790.5 | 1M-rand-100%W_QD32 | 0.0 | 1075.3 |
|
例によってWT/WBの対比が分からないので増分
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
dataDisplay | after |
---|
forgive | false |
---|
width | 1000 |
---|
dataOrientation | vertical |
---|
title | WB時増分 |
---|
type | bar |
---|
yLabel | WT vs WB (%) |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | 対WT比Read IOps 増分(%) | 対WT比Write IOps増分(%) |
---|
512 B; 100% Read; 0% random_QD1 | -38.3926 | 0 |
---|
512 B; 100% Read; 0% random_QD32 | -10.4696 | 0 |
---|
512 B; 50% Read; 0% random_QD1 | 105.3036 | 105.2979 |
---|
512 B; 50% Read; 0% random_QD32 | 182.4146 | 183.829 |
---|
512 B; 0% Read; 0% random_QD1 | 0 | 100.2315 |
---|
512 B; 0% Read; 0% random_QD32 | 0 | -31.7521 |
---|
4 KiB; 100% Read; 0% random_QD1 | -15.3525 | 0 |
---|
4 KiB; 100% Read; 0% random_QD32 | -9.96226 | 0 |
---|
4 KiB; 50% Read; 0% random_QD1 | 4.451638 | 3.060278 |
---|
4 KiB; 50% Read; 0% random_QD32 | -5.8848 | -5.67845 |
---|
4 KiB; 0% Read; 0% random_QD1 | 0 | 78.77088 |
---|
4 KiB; 0% Read; 0% random_QD32 | 0 | -44.7767 |
---|
256 KiB; 100% Read; 0% random_QD1 | -13.1805 | 0 |
---|
256 KiB; 100% Read; 0% random_QD32 | 1.193501 | 0 |
---|
256 KiB; 50% Read; 0% random_QD1 | 17.66127 | 15.54095 |
---|
256 KiB; 50% Read; 0% random_QD32 | 0.809517 | 2.130234 |
---|
256 KiB; 0% Read; 0% random_QD1 | 0 | -7.04535 |
---|
256 KiB; 0% Read; 0% random_QD32 | 0 | -18.4334 |
---|
1M-Seq-100%R_QD1 | -2.46664 | 0 |
---|
1M-Seq-100%R_QD32 | 2.463172 | 0 |
---|
1M-Seq-50%R_QD1 | -3.53151 | -4.23811 |
---|
1M-Seq-50%R_QD32 | -2.97517 | -3.60646 |
---|
1M-Seq-100%W_QD1 | 0 | -20.8247 |
---|
1M-Seq-100%W_QD32 | 0 | -12.7551 |
---|
1M-rand-100%R_QD1 | -1.11088 | 0 |
---|
1M-rand-100%R_QD32 | 4.778021 | 0 |
---|
1M-rand-50%R_QD1 | -4.51558 | -6.17381 |
---|
1M-rand-50%R_QD32 | 4.055717 | 3.391034 |
---|
1M-rand-100%W_QD1 | 0 | -10.4651 |
---|
1M-rand-100%W_QD32 | 0 | -13.909 |
---|
|
CDMでも似た傾向がみれます。
Image Modified
4Disk-RAID5 WT
Image RemovedImage Removed
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid5-WT-4disk IOPS |
---|
type | bar |
---|
rangeAxisUpperBound | 100000 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read IOps | Write IOps | 512 B; 100% Read; 0% random_QD1 | 20830.3 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 52757.6 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 2082.9 | 2088.7 | 512 B; 50% Read; 0% random_QD32 | 10805.8 | 10802.6 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 2383.8 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 26774.4 | 4 KiB; 100% Read; 0% random_QD1 | 16791.8 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 50097.2 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 1996.7 | 1965.9 | 4 KiB; 50% Read; 0% random_QD32 | 9497.6 | 9487.7 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 2061.5 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 14986.2 | 256 KiB; 100% Read; 0% random_QD1 | 1304.7 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 6076.6 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 357.5 | 356.7 | 256 KiB; 50% Read; 0% random_QD32 | 1076.2 | 1092.7 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 598.4 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 927.2 | 1M-Seq-100%R_QD1 | 802.0 | 0.0 | 1M-Seq-100%R_QD32 | 1595.4 | 0.0 | 1M-Seq-50%R_QD1 | 147.6 | 148.9 | 1M-Seq-50%R_QD32 | 299.8 | 306.2 | 1M-Seq-100%W_QD1 | 0.0 | 194.4 | 1M-Seq-100%W_QD32 | 0.0 | 275.3 | 1M-rand-100%R_QD1 | 812.6 | 0.0 | 1M-rand-100%R_QD32 | 1589.9 | 0.0 | 1M-rand-50%R_QD1 | 147.7 | 148.3 | 1M-rand-50%R_QD32 | 297.8 | 300.0 | 1M-rand-100%W_QD1 | 0.0 | 195.2 | 1M-rand-100%W_QD32 | 0.0 | 417.2 |
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid5-WT-4disk MB/s |
---|
type | bar |
---|
rangeAxisUpperBound | 2500 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | 512 B; 100% Read; 0% random_QD1 | 10.2 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 25.8 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 1.0 | 1.0 | 512 B; 50% Read; 0% random_QD32 | 5.3 | 5.3 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 1.2 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 13.1 | 4 KiB; 100% Read; 0% random_QD1 | 65.6 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 195.7 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 7.8 | 7.7 | 4 KiB; 50% Read; 0% random_QD32 | 37.1 | 37.1 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 8.1 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 58.5 | 256 KiB; 100% Read; 0% random_QD1 | 326.2 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 1519.1 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 89.4 | 89.2 | 256 KiB; 50% Read; 0% random_QD32 | 269.0 | 273.2 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 149.6 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 231.8 | 1M-Seq-100%R_QD1 | 802.0 | 0.0 | 1M-Seq-100%R_QD32 | 1595.4 | 0.0 | 1M-Seq-50%R_QD1 | 147.6 | 148.9 | 1M-Seq-50%R_QD32 | 299.8 | 306.2 | 1M-Seq-100%W_QD1 | 0.0 | 194.4 | 1M-Seq-100%W_QD32 | 0.0 | 275.3 | 1M-rand-100%R_QD1 | 812.6 | 0.0 | 1M-rand-100%R_QD32 | 1589.9 | 0.0 | 1M-rand-50%R_QD1 | 147.7 | 148.3 | 1M-rand-50%R_QD32 | 297.8 | 300.0 | 1M-rand-100%W_QD1 | 0.0 | 195.2 | 1M-rand-100%W_QD32 | 0.0 | 417.2 |
|
読み込みはRAID0の1.8GB/sに対して、RAID5でも最大約1.6GB/sと優秀なのですが、書き込みは最大でも300MB/sと残念なことに。
RAID0の時は512BQD32の書き込みが66kIOPSあったのに対して、RAID5の時は26kIOPSまで落ちたので、やはりパリティー計算が必要なRAIDのオーバーヘッドは大きいです。
4Disk-RAID5 WB
...
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid5-WB-4disk IOPS |
---|
type | bar |
---|
rangeAxisUpperBound | 100000 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read IOps | Write IOps | 512 B; 100% Read; 0% random_QD1 | 3978.4 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 39704.5 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 2090.7 | 2089.1 | 512 B; 50% Read; 0% random_QD32 | 18088.7 | 18101.6 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 13874.9 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 44595.3 | 4 KiB; 100% Read; 0% random_QD1 | 3799.3 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 45016.8 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 1852.8 | 1851.5 | 4 KiB; 50% Read; 0% random_QD32 | 13908.4 | 13879.6 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 11953.1 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 29739.9 | 256 KiB; 100% Read; 0% random_QD1 | 1449.9 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 6443.6 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 570.9 | 577.0 | 256 KiB; 50% Read; 0% random_QD32 | 1162.9 | 1172.7 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 1555.2 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 2141.7 | 1M-Seq-100%R_QD1 | 833.7 | 0.0 | 1M-Seq-100%R_QD32 | 1679.6 | 0.0 | 1M-Seq-50%R_QD1 | 237.3 | 240.0 | 1M-Seq-50%R_QD32 | 342.7 | 355.7 | 1M-Seq-100%W_QD1 | 0.0 | 534.0 | 1M-Seq-100%W_QD32 | 0.0 | 536.3 | 1M-rand-100%R_QD1 | 826.6 | 0.0 | 1M-rand-100%R_QD32 | 1720.1 | 0.0 | 1M-rand-50%R_QD1 | 233.1 | 238.9 | 1M-rand-50%R_QD32 | 348.3 | 348.7 | 1M-rand-100%W_QD1 | 0.0 | 484.0 | 1M-rand-100%W_QD32 | 0.0 | 499.0 |
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
forgive | false |
---|
width | 1000 |
---|
rangeAxisLowerBound | 0 |
---|
dataOrientation | vertical |
---|
title | N8103-130-raid5-WB-4disk MB/s |
---|
type | bar |
---|
rangeAxisUpperBound | 2500 |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | 512 B; 100% Read; 0% random_QD1 | 2.0 | 0.0 | 512 B; 100% Read; 0% random_QD32 | 20.3 | 0.0 | 512 B; 50% Read; 0% random_QD1 | 1.1 | 1.1 | 512 B; 50% Read; 0% random_QD32 | 9.3 | 9.3 | 512 B; 0% Read; 0% random_QD1 | 0.0 | 7.1 | 512 B; 0% Read; 0% random_QD32 | 0.0 | 22.8 | 4 KiB; 100% Read; 0% random_QD1 | 15.6 | 0.0 | 4 KiB; 100% Read; 0% random_QD32 | 184.4 | 0.0 | 4 KiB; 50% Read; 0% random_QD1 | 7.6 | 7.6 | 4 KiB; 50% Read; 0% random_QD32 | 57.0 | 56.9 | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 49.0 | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 121.8 | 256 KiB; 100% Read; 0% random_QD1 | 380.1 | 0.0 | 256 KiB; 100% Read; 0% random_QD32 | 1689.1 | 0.0 | 256 KiB; 50% Read; 0% random_QD1 | 149.6 | 151.3 | 256 KiB; 50% Read; 0% random_QD32 | 304.9 | 307.4 | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 407.7 | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 561.4 | 1M-Seq-100%R_QD1 | 874.2 | 0.0 | 1M-Seq-100%R_QD32 | 1761.1 | 0.0 | 1M-Seq-50%R_QD1 | 248.9 | 251.7 | 1M-Seq-50%R_QD32 | 359.4 | 373.0 | 1M-Seq-100%W_QD1 | 0.0 | 560.0 | 1M-Seq-100%W_QD32 | 0.0 | 562.3 | 1M-rand-100%R_QD1 | 866.7 | 0.0 | 1M-rand-100%R_QD32 | 1803.7 | 0.0 | 1M-rand-50%R_QD1 | 244.4 | 250.5 | 1M-rand-50%R_QD32 | 365.2 | 365.6 | 1M-rand-100%W_QD1 | 0.0 | 507.5 | 1M-rand-100%W_QD32 | 0.0 | 523.3 |
|
チャート |
---|
imageFormat | png |
---|
orientation | horizontal |
---|
dataDisplay | after |
---|
forgive | false |
---|
width | 1000 |
---|
dataOrientation | vertical |
---|
title | WB時増分 |
---|
type | bar |
---|
yLabel | WT vs WB (%) |
---|
xLabel | Test Pattern |
---|
height | 500 |
---|
|
Access Specification Name | 対WT比Read IOps 増分(%) | 対WT比Write IOps増分(%) |
---|
512 B; 100% Read; 0% random_QD1 | -80.9008 | 0 |
---|
512 B; 100% Read; 0% random_QD32 | -24.7416 | 0 |
---|
512 B; 50% Read; 0% random_QD1 | 0.374355 | 0.015933 |
---|
512 B; 50% Read; 0% random_QD32 | 67.39728 | 67.56659 |
---|
512 B; 0% Read; 0% random_QD1 | 0 | 482.0557 |
---|
512 B; 0% Read; 0% random_QD32 | 0 | 66.55948 |
---|
4 KiB; 100% Read; 0% random_QD1 | -77.3743 | 0 |
---|
4 KiB; 100% Read; 0% random_QD32 | -10.1411 | 0 |
---|
4 KiB; 50% Read; 0% random_QD1 | -7.2077 | -5.82038 |
---|
4 KiB; 50% Read; 0% random_QD32 | 46.44116 | 46.29059 |
---|
4 KiB; 0% Read; 0% random_QD1 | 0 | 479.8198 |
---|
4 KiB; 0% Read; 0% random_QD32 | 0 | 98.44912 |
---|
256 KiB; 100% Read; 0% random_QD1 | 11.12418 | 0 |
---|
256 KiB; 100% Read; 0% random_QD32 | 6.039454 | 0 |
---|
256 KiB; 50% Read; 0% random_QD1 | 59.67971 | 61.75022 |
---|
256 KiB; 50% Read; 0% random_QD32 | 8.059076 | 7.317294 |
---|
256 KiB; 0% Read; 0% random_QD1 | 0 | 159.8849 |
---|
256 KiB; 0% Read; 0% random_QD32 | 0 | 130.9874 |
---|
1M-Seq-100%R_QD1 | 3.951161 | 0 |
---|
1M-Seq-100%R_QD32 | 5.272636 | 0 |
---|
1M-Seq-50%R_QD1 | 60.79148 | 61.17785 |
---|
1M-Seq-50%R_QD32 | 14.32811 | 16.1741 |
---|
1M-Seq-100%W_QD1 | 0 | 174.7787 |
---|
1M-Seq-100%W_QD32 | 0 | 94.76335 |
---|
1M-rand-100%R_QD1 | 1.722071 | 0 |
---|
1M-rand-100%R_QD32 | 8.186769 | 0 |
---|
1M-rand-50%R_QD1 | 57.84206 | 61.04148 |
---|
1M-rand-50%R_QD32 | 16.93755 | 16.22543 |
---|
1M-rand-100%W_QD1 | 0 | 147.958 |
---|
1M-rand-100%W_QD32 | 0 | 19.62272 |
---|
|
通説通り、RAID5の時はWBキャッシュがあると性能向上があります。512BQD32の書き込みがWT時には26kIOPSでしたがWB時には44kIOPSまで上がりました。
...
CDMでも似た傾向は出ましたが、たとえば4KQD32時の書き込みがIOMeterだとWB時に121MB/s出ているのに対して、CDMだと35MB/sになっているなど、結構違いが出ているので参考値です。
Image Modified
まとめ
4000円前後で買える割にはそこまで悪くないと思います。RAID5で運用する際にはBBU+キャッシュを、0で運用する際にはキャッシュしない設定にする、と言うのがベストのようです。
...