Hard Drive Specifications
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... sound power (Lw) with ISO 7779. Mode definitions ! Seek rate for each cylinder. Each drive is to be less than the maximum value. 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 ... to another without including rotational latency ! Ns = average seek rate in seeks/s ! 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 Ns = 0.4/(Tt + T1) where: ! 6.7 Acoustics 6.7.1 Sound power level ...
... sound power (Lw) with ISO 7779. Mode definitions ! Seek rate for each cylinder. Each drive is to be less than the maximum value. 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 ... to another without including rotational latency ! Ns = average seek rate in seeks/s ! 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 Ns = 0.4/(Tt + T1) where: ! 6.7 Acoustics 6.7.1 Sound power level ...