基本的には130と同じです。
NEC N8103-150 (Megaraid SAS 9267-8i)
スペック
- チップ LSI SAS2208
- メモリ 512MB、DDR3-1333MHz
- リンク速度 x8@PCI-E2.0
RAID5/6 用キー付きのモデルです。いつ買ったのか覚えてません。基本的にNEC N8103-130 性能評価と条件を揃えていますが、150はJBODをサポートしているので、そのJBODについても検証してみました。
- 1Disk-RAID0 WriteThrough
- 1Disk-RAID0 WriteBack
- 1Disk-JBOD
- 4Disk-RAID0 WT
- 4Disk-RAID0 WB
- 4Disk-RAID5 WT
- 4Disk-RAID5 WB
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
| Access Specification Name | Read IOps | Write IOps |
|---|
| 512 B; 100% Read; 0% random_QD1 | 15454.9 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | 76116.4 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 1274.7 | 1275.9 |
|---|
| 512 B; 50% Read; 0% random_QD32 | 3491.2 | 3486.7 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 13117.2 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | 64381.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 13335.9 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | 83042.5 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 2107.4 | 2097.2 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | 15285.5 | 15297.6 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 11951.8 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 58196.6 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | 1432.6 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | 1714.3 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 371.0 | 367.2 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | 476.9 | 475.9 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 1237.7 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1223.3 |
|---|
| 1M-Seq-100%R_QD1 | 425.5 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | 428.5 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | 137.0 | 135.7 |
|---|
| 1M-Seq-50%R_QD32 | 118.0 | 118.2 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | 310.4 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | 304.3 |
|---|
| 1M-rand-100%R_QD1 | 314.6 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 420.5 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | 134.8 | 132.3 |
|---|
| 1M-rand-50%R_QD32 | 111.2 | 107.2 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | 192.7 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | 193.2 |
|---|
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) |
|---|
| 512 B; 100% Read; 0% random_QD1 | 7.5 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | 37.2 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 0.6 | 0.6 |
|---|
| 512 B; 50% Read; 0% random_QD32 | 1.7 | 1.7 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 6.4 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | 31.4 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 52.1 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | 324.4 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 8.2 | 8.2 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | 59.7 | 59.8 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 46.7 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 227.3 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | 358.1 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | 428.6 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 92.8 | 91.8 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | 119.2 | 119.0 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 309.4 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 305.8 |
|---|
| 1M-Seq-100%R_QD1 | 425.5 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | 428.5 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | 137.0 | 135.7 |
|---|
| 1M-Seq-50%R_QD32 | 118.0 | 118.2 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | 310.4 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | 304.3 |
|---|
| 1M-rand-100%R_QD1 | 314.6 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 420.5 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | 134.8 | 132.3 |
|---|
| 1M-rand-50%R_QD32 | 111.2 | 107.2 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | 192.7 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | 193.2 |
|---|
|
130と比較してみました。
| Access Specification Name | vs130 Read IOps 増分(%) | vs130 Write IOps増分(%) |
|---|
| 512 B; 100% Read; 0% random_QD1 | 100.2 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | -15.1 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 24.4 | 23.5 |
|---|
| 512 B; 50% Read; 0% random_QD32 | -4.6 | -4.8 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 97.2 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | -14.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 108.8 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | 20.9 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 11.3 | 10.9 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | -0.6 | -0.7 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 88.2 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 10.2 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | 18.8 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | -0.0 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 5.0 | 6.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | -7.6 | -7.6 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 14.5 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 0.4 |
|---|
| 1M-Seq-100%R_QD1 | 2.4 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | -0.0 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | 2.5 | -1.4 |
|---|
| 1M-Seq-50%R_QD32 | -11.0 | -9.8 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | 0.8 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | 0.1 |
|---|
| 1M-rand-100%R_QD1 | -1.0 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 2.4 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | 1.1 | -4.2 |
|---|
| 1M-rand-50%R_QD32 | -17.6 | -20.6 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | -37.5 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | -35.6 |
|---|
|
130よりも512B、4kのQD1の読み込み性能は倍ほど違います。ですが、アクセスサイズ1Mのランダムの書き込みが何故か遅いなど、逆転しているところもあります。何とも評価しがたい値です。
1Disk-RAID0 WriteBack
| Access Specification Name | Read IOps | Write IOps | | 512 B; 100% Read; 0% random_QD1 | 14349.0 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 76477.6 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 4582.6 | 4555.6 | | 512 B; 50% Read; 0% random_QD32 | 12578.5 | 12564.9 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 21159.8 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 57340.8 | | 4 KiB; 100% Read; 0% random_QD1 | 13957.4 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 81257.2 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 2903.1 | 2902.8 | | 4 KiB; 50% Read; 0% random_QD32 | 13039.4 | 12971.5 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 15789.1 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 37061.2 | | 256 KiB; 100% Read; 0% random_QD1 | 1427.4 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 1848.4 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 382.9 | 386.3 | | 256 KiB; 50% Read; 0% random_QD32 | 463.4 | 461.2 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 1216.7 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1221.8 | | 1M-Seq-100%R_QD1 | 443.2 | 0.0 | | 1M-Seq-100%R_QD32 | 464.1 | 0.0 | | 1M-Seq-50%R_QD1 | 127.6 | 128.4 | | 1M-Seq-50%R_QD32 | 113.5 | 113.5 | | 1M-Seq-100%W_QD1 | 0.0 | 304.4 | | 1M-Seq-100%W_QD32 | 0.0 | 305.3 | | 1M-rand-100%R_QD1 | 330.0 | 0.0 | | 1M-rand-100%R_QD32 | 452.3 | 0.0 | | 1M-rand-50%R_QD1 | 131.4 | 128.2 | | 1M-rand-50%R_QD32 | 113.2 | 115.4 | | 1M-rand-100%W_QD1 | 0.0 | 214.8 | | 1M-rand-100%W_QD32 | 0.0 | 212.3 |
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | | 512 B; 100% Read; 0% random_QD1 | 7.3 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 39.2 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 2.3 | 2.3 | | 512 B; 50% Read; 0% random_QD32 | 6.4 | 6.4 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 10.8 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 29.4 | | 4 KiB; 100% Read; 0% random_QD1 | 57.2 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 332.8 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 11.9 | 11.9 | | 4 KiB; 50% Read; 0% random_QD32 | 53.4 | 53.1 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 64.7 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 151.8 | | 256 KiB; 100% Read; 0% random_QD1 | 374.2 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 484.5 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 100.4 | 101.3 | | 256 KiB; 50% Read; 0% random_QD32 | 121.5 | 120.9 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 318.9 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 320.3 | | 1M-Seq-100%R_QD1 | 464.7 | 0.0 | | 1M-Seq-100%R_QD32 | 486.6 | 0.0 | | 1M-Seq-50%R_QD1 | 133.8 | 134.7 | | 1M-Seq-50%R_QD32 | 119.0 | 119.0 | | 1M-Seq-100%W_QD1 | 0.0 | 319.2 | | 1M-Seq-100%W_QD32 | 0.0 | 320.1 | | 1M-rand-100%R_QD1 | 346.0 | 0.0 | | 1M-rand-100%R_QD32 | 474.2 | 0.0 | | 1M-rand-50%R_QD1 | 137.8 | 134.5 | | 1M-rand-50%R_QD32 | 118.7 | 121.0 | | 1M-rand-100%W_QD1 | 0.0 | 225.2 | | 1M-rand-100%W_QD32 | 0.0 | 222.6 |
|
| Access Specification Name | 対WT比Read IOps 増分(%) | 対WT比Write IOps増分(%) |
|---|
| 512 B; 100% Read; 0% random_QD1 | -7.2 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | 0.5 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 259.5 | 257.0 |
|---|
| 512 B; 50% Read; 0% random_QD32 | 260.3 | 260.4 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 61.3 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | -10.9 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 4.7 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | -2.1 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 37.8 | 38.4 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | -14.7 | -15.2 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 32.1 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | -36.3 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | -0.4 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | 7.8 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 3.2 | 5.2 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | -2.8 | -3.1 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | -1.7 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | -0.1 |
|---|
| 1M-Seq-100%R_QD1 | 4.2 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | 8.3 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | -6.8 | -5.3 |
|---|
| 1M-Seq-50%R_QD32 | -3.8 | -4.0 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | -1.9 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | 0.3 |
|---|
| 1M-rand-100%R_QD1 | 4.9 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 7.6 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | -2.5 | -3.1 |
|---|
| 1M-rand-50%R_QD32 | 1.8 | 7.7 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | 11.4 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | 9.9 |
|---|
|
130と違い、殆どの場合で性能が上がりました。ただ、1Mランダム書き込みで性能低下する傾向は変わりません。
WB時の130との比較です。
| Access Specification Name | vs130 Read IOps 増分(%) | vs130 Write IOps増分(%) |
|---|
| 512 B; 100% Read; 0% random_QD1 | 233.6 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | -12.7 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 119.5 | 117.4 |
|---|
| 512 B; 50% Read; 0% random_QD32 | 22.0 | 21.2 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 57.6 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | 26.9 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 235.0 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | 68.0 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 54.6 | 56.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | -6.5 | -6.8 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 30.3 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 19.9 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | 19.8 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | 3.8 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 1.1 | 2.6 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | 15.1 | 14.7 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | -0.1 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 0.3 |
|---|
| 1M-Seq-100%R_QD1 | 6.5 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | 3.6 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | -0.8 | -1.0 |
|---|
| 1M-Seq-50%R_QD32 | -7.2 | -5.7 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | -0.5 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | -0.0 |
|---|
| 1M-rand-100%R_QD1 | 12.7 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 47.9 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | 9.9 | 9.1 |
|---|
| 1M-rand-50%R_QD32 | 2.5 | 3.5 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | -24.7 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | -24.8 |
|---|
|
130ではWB時にQD1の512B読みが落ちる傾向がありましたが、150では改善されているようです。
この辺から疲れたので値だけ列挙します。
JBOD
| Access Specification Name | Read IOps | Write IOps |
|---|
| 512 B; 100% Read; 0% random_QD1 | 13670.0 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | 79255.4 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 1212.7 | 1213.4 |
|---|
| 512 B; 50% Read; 0% random_QD32 | 3114.6 | 3143.8 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 12233.5 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | 66650.6 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 12460.3 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | 52466.9 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 2383.1 | 2365.6 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | 15175.1 | 15152.3 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 11470.1 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 43015.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | 1343.4 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | 1714.0 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 369.8 | 372.6 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | 472.2 | 473.0 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 1196.8 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1214.7 |
|---|
| 1M-Seq-100%R_QD1 | 424.4 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | 428.6 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | 139.6 | 136.6 |
|---|
| 1M-Seq-50%R_QD32 | 117.9 | 117.5 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | 305.9 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | 304.4 |
|---|
| 1M-rand-100%R_QD1 | 316.3 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 417.3 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | 131.8 | 138.5 |
|---|
| 1M-rand-50%R_QD32 | 107.4 | 107.6 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | 196.3 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | 191.2 |
|---|
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) |
|---|
| 512 B; 100% Read; 0% random_QD1 | 7.0 | 0.0 |
|---|
| 512 B; 100% Read; 0% random_QD32 | 40.6 | 0.0 |
|---|
| 512 B; 50% Read; 0% random_QD1 | 0.6 | 0.6 |
|---|
| 512 B; 50% Read; 0% random_QD32 | 1.6 | 1.6 |
|---|
| 512 B; 0% Read; 0% random_QD1 | 0.0 | 6.3 |
|---|
| 512 B; 0% Read; 0% random_QD32 | 0.0 | 34.1 |
|---|
| 4 KiB; 100% Read; 0% random_QD1 | 51.0 | 0.0 |
|---|
| 4 KiB; 100% Read; 0% random_QD32 | 214.9 | 0.0 |
|---|
| 4 KiB; 50% Read; 0% random_QD1 | 9.8 | 9.7 |
|---|
| 4 KiB; 50% Read; 0% random_QD32 | 62.2 | 62.1 |
|---|
| 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 47.0 |
|---|
| 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 176.2 |
|---|
| 256 KiB; 100% Read; 0% random_QD1 | 352.2 | 0.0 |
|---|
| 256 KiB; 100% Read; 0% random_QD32 | 449.3 | 0.0 |
|---|
| 256 KiB; 50% Read; 0% random_QD1 | 96.9 | 97.7 |
|---|
| 256 KiB; 50% Read; 0% random_QD32 | 123.8 | 124.0 |
|---|
| 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 313.7 |
|---|
| 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 318.4 |
|---|
| 1M-Seq-100%R_QD1 | 445.0 | 0.0 |
|---|
| 1M-Seq-100%R_QD32 | 449.4 | 0.0 |
|---|
| 1M-Seq-50%R_QD1 | 146.4 | 143.3 |
|---|
| 1M-Seq-50%R_QD32 | 123.7 | 123.2 |
|---|
| 1M-Seq-100%W_QD1 | 0.0 | 320.8 |
|---|
| 1M-Seq-100%W_QD32 | 0.0 | 319.2 |
|---|
| 1M-rand-100%R_QD1 | 331.7 | 0.0 |
|---|
| 1M-rand-100%R_QD32 | 437.6 | 0.0 |
|---|
| 1M-rand-50%R_QD1 | 138.2 | 145.3 |
|---|
| 1M-rand-50%R_QD32 | 112.6 | 112.8 |
|---|
| 1M-rand-100%W_QD1 | 0.0 | 205.8 |
|---|
| 1M-rand-100%W_QD32 | 0.0 | 200.5 |
|---|
|
P420に見えるような、極端な書き込み性能の低下は見えませんでした。
4Disk-RAID0 WT
| Access Specification Name | Read IOps | Write IOps | | 512 B; 100% Read; 0% random_QD1 | 14277.4 | 14277.4 | | 512 B; 100% Read; 0% random_QD32 | 76291.7 | 76291.7 | | 512 B; 50% Read; 0% random_QD1 | 2509.3 | 1256.7 | | 512 B; 50% Read; 0% random_QD32 | 10084.6 | 5034.5 | | 512 B; 0% Read; 0% random_QD1 | 12448.4 | 0.0 | | 512 B; 0% Read; 0% random_QD32 | 65127.4 | 0.0 | | 4 KiB; 100% Read; 0% random_QD1 | 12337.2 | 12337.2 | | 4 KiB; 100% Read; 0% random_QD32 | 79605.2 | 79605.2 | | 4 KiB; 50% Read; 0% random_QD1 | 4022.9 | 2011.6 | | 4 KiB; 50% Read; 0% random_QD32 | 35782.0 | 17885.6 | | 4 KiB; 0% Read; 0% random_QD1 | 11820.2 | 0.0 | | 4 KiB; 0% Read; 0% random_QD32 | 63892.4 | 0.0 | | 256 KiB; 100% Read; 0% random_QD1 | 2637.5 | 2637.5 | | 256 KiB; 100% Read; 0% random_QD32 | 6771.1 | 6771.1 | | 256 KiB; 50% Read; 0% random_QD1 | 1143.6 | 572.8 | | 256 KiB; 50% Read; 0% random_QD32 | 3160.5 | 1576.2 | | 256 KiB; 0% Read; 0% random_QD1 | 2362.0 | 0.0 | | 256 KiB; 0% Read; 0% random_QD32 | 4598.5 | 0.0 | | 1M-Seq-100%R_QD1 | 1188.1 | 1188.1 | | 1M-Seq-100%R_QD32 | 1699.3 | 1699.3 | | 1M-Seq-50%R_QD1 | 573.8 | 285.0 | | 1M-Seq-50%R_QD32 | 778.9 | 392.9 | | 1M-Seq-100%W_QD1 | 877.3 | 0.0 | | 1M-Seq-100%W_QD32 | 1168.5 | 0.0 | | 1M-rand-100%R_QD1 | 804.1 | 804.1 | | 1M-rand-100%R_QD32 | 1372.3 | 1372.3 | | 1M-rand-50%R_QD1 | 559.1 | 281.2 | | 1M-rand-50%R_QD32 | 734.4 | 370.1 | | 1M-rand-100%W_QD1 | 679.9 | 0.0 | | 1M-rand-100%W_QD32 | 888.7 | 0.0 |
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | | 512 B; 100% Read; 0% random_QD1 | 7.3 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 39.1 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 0.6 | 0.6 | | 512 B; 50% Read; 0% random_QD32 | 2.6 | 2.6 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 6.4 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 33.3 | | 4 KiB; 100% Read; 0% random_QD1 | 50.5 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 326.1 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 8.2 | 8.2 | | 4 KiB; 50% Read; 0% random_QD32 | 73.3 | 73.3 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 48.4 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 261.7 | | 256 KiB; 100% Read; 0% random_QD1 | 691.4 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 1775.0 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 150.2 | 149.6 | | 256 KiB; 50% Read; 0% random_QD32 | 413.2 | 415.3 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 619.2 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1205.5 | | 1M-Seq-100%R_QD1 | 1245.8 | 0.0 | | 1M-Seq-100%R_QD32 | 1781.9 | 0.0 | | 1M-Seq-50%R_QD1 | 298.9 | 302.8 | | 1M-Seq-50%R_QD32 | 412.0 | 404.7 | | 1M-Seq-100%W_QD1 | 0.0 | 919.9 | | 1M-Seq-100%W_QD32 | 0.0 | 1225.3 | | 1M-rand-100%R_QD1 | 843.1 | 0.0 | | 1M-rand-100%R_QD32 | 1438.9 | 0.0 | | 1M-rand-50%R_QD1 | 294.8 | 291.4 | | 1M-rand-50%R_QD32 | 388.1 | 382.0 | | 1M-rand-100%W_QD1 | 0.0 | 712.9 | | 1M-rand-100%W_QD32 | 0.0 | 931.9 |
|
4Disk-RAID0 WB
| Access Specification Name | Read IOps | Write IOps | | 512 B; 100% Read; 0% random_QD1 | 14155.6 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 77261.2 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 4614.8 | 4619.0 | | 512 B; 50% Read; 0% random_QD32 | 24774.3 | 24748.8 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 21576.4 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 63431.5 | | 4 KiB; 100% Read; 0% random_QD1 | 13961.9 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 79381.2 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 3425.6 | 3433.3 | | 4 KiB; 50% Read; 0% random_QD32 | 20498.6 | 20491.6 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 16267.3 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 57700.6 | | 256 KiB; 100% Read; 0% random_QD1 | 2786.5 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 6956.2 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 799.7 | 795.9 | | 256 KiB; 50% Read; 0% random_QD32 | 2008.9 | 2010.6 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 2993.6 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 4686.6 | | 1M-Seq-100%R_QD1 | 1211.6 | 0.0 | | 1M-Seq-100%R_QD32 | 1760.1 | 0.0 | | 1M-Seq-50%R_QD1 | 318.5 | 325.7 | | 1M-Seq-50%R_QD32 | 473.3 | 477.9 | | 1M-Seq-100%W_QD1 | 0.0 | 1188.8 | | 1M-Seq-100%W_QD32 | 0.0 | 1199.9 | | 1M-rand-100%R_QD1 | 846.8 | 0.0 | | 1M-rand-100%R_QD32 | 1520.5 | 0.0 | | 1M-rand-50%R_QD1 | 330.6 | 326.5 | | 1M-rand-50%R_QD32 | 496.2 | 501.1 | | 1M-rand-100%W_QD1 | 0.0 | 903.2 | | 1M-rand-100%W_QD32 | 0.0 | 983.7 |
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | | 512 B; 100% Read; 0% random_QD1 | 7.2 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 39.6 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 2.4 | 2.4 | | 512 B; 50% Read; 0% random_QD32 | 12.7 | 12.7 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 11.0 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 32.5 | | 4 KiB; 100% Read; 0% random_QD1 | 57.2 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 325.1 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 14.0 | 14.1 | | 4 KiB; 50% Read; 0% random_QD32 | 84.0 | 83.9 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 66.6 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 236.3 | | 256 KiB; 100% Read; 0% random_QD1 | 730.5 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 1823.5 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 209.6 | 208.7 | | 256 KiB; 50% Read; 0% random_QD32 | 526.6 | 527.1 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 784.7 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1228.6 | | 1M-Seq-100%R_QD1 | 1270.4 | 0.0 | | 1M-Seq-100%R_QD32 | 1845.6 | 0.0 | | 1M-Seq-50%R_QD1 | 334.0 | 341.6 | | 1M-Seq-50%R_QD32 | 496.3 | 501.1 | | 1M-Seq-100%W_QD1 | 0.0 | 1246.6 | | 1M-Seq-100%W_QD32 | 0.0 | 1258.2 | | 1M-rand-100%R_QD1 | 887.9 | 0.0 | | 1M-rand-100%R_QD32 | 1594.3 | 0.0 | | 1M-rand-50%R_QD1 | 346.7 | 342.4 | | 1M-rand-50%R_QD32 | 520.3 | 525.5 | | 1M-rand-100%W_QD1 | 0.0 | 947.1 | | 1M-rand-100%W_QD32 | 0.0 | 1031.5 |
|
4Disk-RAID5 WT
| Access Specification Name | Read IOps | Write IOps | | 512 B; 100% Read; 0% random_QD1 | 14598.2 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 37084.0 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 1050.8 | 1053.6 | | 512 B; 50% Read; 0% random_QD32 | 7729.5 | 7726.3 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 3778.9 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 21458.4 | | 4 KiB; 100% Read; 0% random_QD1 | 6248.5 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 45235.5 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 1413.5 | 1402.3 | | 4 KiB; 50% Read; 0% random_QD32 | 7747.9 | 7764.6 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 2213.3 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 8374.1 | | 256 KiB; 100% Read; 0% random_QD1 | 1503.4 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 6126.9 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 293.9 | 292.5 | | 256 KiB; 50% Read; 0% random_QD32 | 817.9 | 819.3 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 347.2 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 484.5 | | 1M-Seq-100%R_QD1 | 825.4 | 0.0 | | 1M-Seq-100%R_QD32 | 1560.7 | 0.0 | | 1M-Seq-50%R_QD1 | 89.1 | 91.0 | | 1M-Seq-50%R_QD32 | 204.4 | 206.9 | | 1M-Seq-100%W_QD1 | 0.0 | 99.3 | | 1M-Seq-100%W_QD32 | 0.0 | 137.7 | | 1M-rand-100%R_QD1 | 806.9 | 0.0 | | 1M-rand-100%R_QD32 | 1527.5 | 0.0 | | 1M-rand-50%R_QD1 | 95.4 | 92.6 | | 1M-rand-50%R_QD32 | 250.7 | 243.0 | | 1M-rand-100%W_QD1 | 0.0 | 110.5 | | 1M-rand-100%W_QD32 | 0.0 | 328.7 |
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | | 512 B; 100% Read; 0% random_QD1 | 7.5 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 19.0 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 0.5 | 0.5 | | 512 B; 50% Read; 0% random_QD32 | 4.0 | 4.0 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 1.9 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 11.0 | | 4 KiB; 100% Read; 0% random_QD1 | 25.6 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 185.3 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 5.8 | 5.7 | | 4 KiB; 50% Read; 0% random_QD32 | 31.7 | 31.8 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 9.1 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 34.3 | | 256 KiB; 100% Read; 0% random_QD1 | 394.1 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 1606.1 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 77.1 | 76.7 | | 256 KiB; 50% Read; 0% random_QD32 | 214.4 | 214.8 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 91.0 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 127.0 | | 1M-Seq-100%R_QD1 | 865.5 | 0.0 | | 1M-Seq-100%R_QD32 | 1636.5 | 0.0 | | 1M-Seq-50%R_QD1 | 93.4 | 95.5 | | 1M-Seq-50%R_QD32 | 214.3 | 216.9 | | 1M-Seq-100%W_QD1 | 0.0 | 104.1 | | 1M-Seq-100%W_QD32 | 0.0 | 144.4 | | 1M-rand-100%R_QD1 | 846.1 | 0.0 | | 1M-rand-100%R_QD32 | 1601.7 | 0.0 | | 1M-rand-50%R_QD1 | 100.1 | 97.1 | | 1M-rand-50%R_QD32 | 262.9 | 254.8 | | 1M-rand-100%W_QD1 | 0.0 | 115.9 | | 1M-rand-100%W_QD32 | 0.0 | 344.7 |
|
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
| Access Specification Name | Read IOps | Write IOps | | 512 B; 100% Read; 0% random_QD1 | 13695.5 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 36651.6 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 2678.1 | 2682.4 | | 512 B; 50% Read; 0% random_QD32 | 22200.6 | 22236.2 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 22396.7 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 42867.7 | | 4 KiB; 100% Read; 0% random_QD1 | 8310.1 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 46724.3 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 2426.5 | 2416.2 | | 4 KiB; 50% Read; 0% random_QD32 | 14102.2 | 14116.9 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 16943.3 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 40453.7 | | 256 KiB; 100% Read; 0% random_QD1 | 1903.9 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 6531.0 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 725.3 | 721.3 | | 256 KiB; 50% Read; 0% random_QD32 | 1168.2 | 1175.5 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 2769.5 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 3596.4 | | 1M-Seq-100%R_QD1 | 947.4 | 0.0 | | 1M-Seq-100%R_QD32 | 1646.5 | 0.0 | | 1M-Seq-50%R_QD1 | 286.1 | 281.7 | | 1M-Seq-50%R_QD32 | 323.4 | 323.6 | | 1M-Seq-100%W_QD1 | 0.0 | 883.4 | | 1M-Seq-100%W_QD32 | 0.0 | 877.3 | | 1M-rand-100%R_QD1 | 942.4 | 0.0 | | 1M-rand-100%R_QD32 | 1696.3 | 0.0 | | 1M-rand-50%R_QD1 | 277.0 | 276.5 | | 1M-rand-50%R_QD32 | 321.0 | 322.2 | | 1M-rand-100%W_QD1 | 0.0 | 532.5 | | 1M-rand-100%W_QD32 | 0.0 | 531.4 |
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | | 512 B; 100% Read; 0% random_QD1 | 7.0 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 18.8 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 1.4 | 1.4 | | 512 B; 50% Read; 0% random_QD32 | 11.4 | 11.4 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 11.5 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 21.9 | | 4 KiB; 100% Read; 0% random_QD1 | 34.0 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 191.4 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 9.9 | 9.9 | | 4 KiB; 50% Read; 0% random_QD32 | 57.8 | 57.8 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 69.4 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 165.7 | | 256 KiB; 100% Read; 0% random_QD1 | 499.1 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 1712.1 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 190.1 | 189.1 | | 256 KiB; 50% Read; 0% random_QD32 | 306.2 | 308.1 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 726.0 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 942.8 | | 1M-Seq-100%R_QD1 | 993.4 | 0.0 | | 1M-Seq-100%R_QD32 | 1726.4 | 0.0 | | 1M-Seq-50%R_QD1 | 300.0 | 295.3 | | 1M-Seq-50%R_QD32 | 339.1 | 339.3 | | 1M-Seq-100%W_QD1 | 0.0 | 926.3 | | 1M-Seq-100%W_QD32 | 0.0 | 920.0 | | 1M-rand-100%R_QD1 | 988.2 | 0.0 | | 1M-rand-100%R_QD32 | 1778.7 | 0.0 | | 1M-rand-50%R_QD1 | 290.5 | 289.9 | | 1M-rand-50%R_QD32 | 336.5 | 337.8 | | 1M-rand-100%W_QD1 | 0.0 | 558.4 | | 1M-rand-100%W_QD32 | 0.0 | 557.2 |
|
RAID5の書き込みでは、920MB/sと、おそらくSSDが1台あたり300MB/s程度で限界に来ているので、SSDが原因で頭打ちになっていると思われます。
8Disk-RAID5 WB
性能の限界が気になったので、変則的に手元にあった840Evoの128GBも4本混ぜ、X300s*4+840Evo*4と言う構成でもベンチマークを取得しました。
| Access Specification Name | Read IOps | Write IOps | | 512 B; 100% Read; 0% random_QD1 | 13238.9 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 38691.7 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 4189.5 | 4168.7 | | 512 B; 50% Read; 0% random_QD32 | 24522.3 | 24518.3 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 18063.0 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 66879.5 | | 4 KiB; 100% Read; 0% random_QD1 | 11344.3 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 40623.2 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 3040.6 | 3053.1 | | 4 KiB; 50% Read; 0% random_QD32 | 16994.0 | 17002.4 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 14863.1 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 62018.2 | | 256 KiB; 100% Read; 0% random_QD1 | 1981.9 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 9275.6 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 849.3 | 850.9 | | 256 KiB; 50% Read; 0% random_QD32 | 1836.7 | 1835.8 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 2430.9 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 4752.0 | | 1M-Seq-100%R_QD1 | 1188.7 | 0.0 | | 1M-Seq-100%R_QD32 | 2485.9 | 0.0 | | 1M-Seq-50%R_QD1 | 344.7 | 352.4 | | 1M-Seq-50%R_QD32 | 555.5 | 554.6 | | 1M-Seq-100%W_QD1 | 0.0 | 887.0 | | 1M-Seq-100%W_QD32 | 0.0 | 1231.8 | | 1M-rand-100%R_QD1 | 1206.3 | 0.0 | | 1M-rand-100%R_QD32 | 2649.2 | 0.0 | | 1M-rand-50%R_QD1 | 351.5 | 348.1 | | 1M-rand-50%R_QD32 | 554.0 | 559.6 | | 1M-rand-100%W_QD1 | 0.0 | 713.8 | | 1M-rand-100%W_QD32 | 0.0 | 709.3 |
|
| Access Specification Name | Read MBps (Decimal) | Write MBps (Decimal) | | 512 B; 100% Read; 0% random_QD1 | 6.8 | 0.0 | | 512 B; 100% Read; 0% random_QD32 | 19.8 | 0.0 | | 512 B; 50% Read; 0% random_QD1 | 2.1 | 2.1 | | 512 B; 50% Read; 0% random_QD32 | 12.6 | 12.6 | | 512 B; 0% Read; 0% random_QD1 | 0.0 | 9.2 | | 512 B; 0% Read; 0% random_QD32 | 0.0 | 34.2 | | 4 KiB; 100% Read; 0% random_QD1 | 46.5 | 0.0 | | 4 KiB; 100% Read; 0% random_QD32 | 166.4 | 0.0 | | 4 KiB; 50% Read; 0% random_QD1 | 12.5 | 12.5 | | 4 KiB; 50% Read; 0% random_QD32 | 69.6 | 69.6 | | 4 KiB; 0% Read; 0% random_QD1 | 0.0 | 60.9 | | 4 KiB; 0% Read; 0% random_QD32 | 0.0 | 254.0 | | 256 KiB; 100% Read; 0% random_QD1 | 519.5 | 0.0 | | 256 KiB; 100% Read; 0% random_QD32 | 2431.5 | 0.0 | | 256 KiB; 50% Read; 0% random_QD1 | 222.6 | 223.0 | | 256 KiB; 50% Read; 0% random_QD32 | 481.5 | 481.3 | | 256 KiB; 0% Read; 0% random_QD1 | 0.0 | 637.2 | | 256 KiB; 0% Read; 0% random_QD32 | 0.0 | 1245.7 | | 1M-Seq-100%R_QD1 | 1246.4 | 0.0 | | 1M-Seq-100%R_QD32 | 2606.6 | 0.0 | | 1M-Seq-50%R_QD1 | 361.4 | 369.5 | | 1M-Seq-50%R_QD32 | 582.4 | 581.5 | | 1M-Seq-100%W_QD1 | 0.0 | 930.1 | | 1M-Seq-100%W_QD32 | 0.0 | 1291.7 | | 1M-rand-100%R_QD1 | 1264.9 | 0.0 | | 1M-rand-100%R_QD32 | 2777.9 | 0.0 | | 1M-rand-50%R_QD1 | 368.6 | 365.1 | | 1M-rand-50%R_QD32 | 580.9 | 586.8 | | 1M-rand-100%W_QD1 | 0.0 | 748.4 | | 1M-rand-100%W_QD32 | 0.0 | 743.7 |
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読み込みでは1M-QD32で約2.7GB/sとスケールしていますが、書き込みでは精々1.2GB/s程度でした。それぞれのディスクではSeqWが300MB/sは出ているので、パリティー分を引いて2.1GB/s位は出てくれると思ったのですが…。
まあ使っているモデルが128GBなので、数を増やしたところでSSDのそもそもの性能があまり良くないというのもありますが、これだけのために256GBや512GBのモデルを集めるのはさすがにつらいです。
まとめ
130に比べると、2コアSOCのおかげか書き込み時の落ち込みがだいぶマシになっています。しかし、ベースのSSDが微妙だと数を増やしたところで大してスケールしませんでした。
ちなみに、RAIDカード全般に言えることですが、このカードもかなりの熱を持ちます。実験中このような状態で検証していたのですが(雑い)、室温28度でも無風にすると40度からじわじわと温度が上がっていきました。
暑い真夏の夜、過熱したRAIDカードは、遂に危険な領域へと突入する…。
正しく熱放射率の設定をしてないので数値は目安ですが、80度に達したところで危険を感じたのでファンを戻しました。
それぐらいに熱くなるので、使う際にはそれなりのエアフローが必須です。
排熱には気をつけよう!
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