Hitachi ULTRASTAR 15K450 HUS154530VLF400 - Manual (Page 47)

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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Model FC 4 Gb/ s 300 GB Current Current Power Note
IO / Sec +5V +12V Watts
Start Peak Power DC --- 1.92 ---
Start Peak Power AC 1.12 2.44
Idle 0.83 0.71 12.7 Average
Idle Ripple 0.25 0 .1 9 --- Peak to Peak
Random W / R Peak 215 1.36 2.24 2KB Qd=4
Random W / R Average 215 0.88 1.07 17.2 2KB Qd=4
Random W / R Average 164 0.86 1.02 16.6 2KB Qd=1
120 0.85 1.01
90 0.85 0.99
60 0.84 0.98
30 0.84 0.98
Sequential Read Peak 1.60 Maximum Transfer Rate
Sequential Read Average 1.38 0.74 15.8 Maximum Transfer Rate
Sequential Write Peak 1.60 --- --- Maximum Transfer Rate
Sequential Write Average 1.31 0.74 15.4 Maximum Transfer Rate
BMS Average 0.97 0.74 13.7
BMS Peak 1.46