Hard Drive Specifications
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.... Ns = 0.4/(Tt + T1) where: ! T1= equivalent time, in accordance with ISO 7779. Each drive is to meet this requirement in seeks/s ! A-weighted Sound Power DJSA-232 Idle Operating DJSA-230 Idle Operating DJSA-220/210/205 Idle Operating Typical (Bels) 2.5 3.5 2.8 3.5 2.8 3.3 Maximum (Bels) 2.7 3.8 3.4 3.8 3.4...the lower surface of the drive be located 25±3 mm above from one random track to another without including rotational latency ! Lwt(spec) = Lw = 0.1Pt + 0.3 < 4.0 (Bels) Lw = A-weighted sound power level Travelstar 32GH/30GT/20GN hard disk drive specifications 37 6.7 Acoustics ...
.... Ns = 0.4/(Tt + T1) where: ! T1= equivalent time, in accordance with ISO 7779. Each drive is to meet this requirement in seeks/s ! A-weighted Sound Power DJSA-232 Idle Operating DJSA-230 Idle Operating DJSA-220/210/205 Idle Operating Typical (Bels) 2.5 3.5 2.8 3.5 2.8 3.3 Maximum (Bels) 2.7 3.8 3.4 3.8 3.4...the lower surface of the drive be located 25±3 mm above from one random track to another without including rotational latency ! Lwt(spec) = Lw = 0.1Pt + 0.3 < 4.0 (Bels) Lw = A-weighted sound power level Travelstar 32GH/30GT/20GN hard disk drive specifications 37 6.7 Acoustics ...