2.5インチ200GB以上のディスクのベンチ比較

当てが外れたというかなんというか。Samsung SpinPoint M5S HM250JIが届いてディスクを入れ替えてみたのですが、なんと期待に反してけっこううるさいです。3.5インチのが静かだったので期待していたのに。しかもベンチテストでは何度やっても日立の数値を上回ることはありませんでした（詳しくは下記 Xbench 1.3の結果参照）。日立さん、さすがですね。ということで、結局は日立のTravelStar 7K200をメインで使って、完全バックアップに日立Travelstar 5K250、Samsung SpinPoint M5S HM250JI、東芝MK2035GSSを使うことにしました。東芝のディスクはベンチテストでは最も遅いですが、最も静かで好感が持てます。

1. Toshiba MK2035GSS

Disk Test 31.14
Sequential 42.90
Uncached Write 63.21 38.81 MB/sec [4K blocks]
Uncached Write 44.54 25.20 MB/sec [256K blocks]
Uncached Read 27.59 8.07 MB/sec [4K blocks]
Uncached Read 53.40 26.84 MB/sec [256K blocks]

Random 24.44
Uncached Write 9.80 1.04 MB/sec [4K blocks]
Uncached Write 47.55 15.22 MB/sec [256K blocks]
Uncached Read 40.43 0.29 MB/sec [4K blocks]
Uncached Read 62.77 11.65 MB/sec [256K blocks]

2. Hitachi TravelStar 7K200

Disk Test 43.87
Sequential 77.93
Uncached Write 102.46 62.91 MB/sec [4K blocks]
Uncached Write 95.23 53.88 MB/sec [256K blocks]
Uncached Read 48.56 14.21 MB/sec [4K blocks]
Uncached Read 95.48 47.99 MB/sec [256K blocks]

Random 30.53
Uncached Write 10.28 1.09 MB/sec [4K blocks]
Uncached Write 83.10 26.60 MB/sec [256K blocks]
Uncached Read 76.18 0.54 MB/sec [4K blocks]
Uncached Read 116.26 21.57 MB/sec [256K blocks]

3. Hitachi TravelStar 5K250

Disk Test 37.12
Sequential 58.22
Uncached Write 57.97 35.60 MB/sec [4K blocks]
Uncached Write 55.48 31.39 MB/sec [256K blocks]
Uncached Read 48.57 14.21 MB/sec [4K blocks]
Uncached Read 77.87 39.14 MB/sec [256K blocks]

Random 27.24
Uncached Write 9.44 1.00 MB/sec [4K blocks]
Uncached Write 69.48 22.24 MB/sec [256K blocks]
Uncached Read 65.59 0.46 MB/sec [4K blocks]
Uncached Read 89.07 16.53 MB/sec [256K blocks]

4. Samsung SpinPoint M5S HM250JI

Disk Test 34.93
Sequential 45.59
Uncached Write 55.04 33.79 MB/sec [4K blocks]
Uncached Write 50.78 28.73 MB/sec [256K blocks]
Uncached Read 30.77 9.00 MB/sec [4K blocks]
Uncached Read 57.56 28.93 MB/sec [256K blocks]

Random 28.30
Uncached Write 10.42 1.10 MB/sec [4K blocks]
Uncached Write 63.57 20.35 MB/sec [256K blocks]
Uncached Read 62.56 0.44 MB/sec [4K blocks]
Uncached Read 73.43 13.63 MB/sec [256K blocks]