Seagate Barracuda Green, Руководство по эксплуатации продукта

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Barracuda Green SATA Product Manual, Rev. A 19
www.seagate.com Drive Specifications
2.9.5.2 Nonoperating shock
2000GB and 1500GB models
The nonoperating shock level that the drive can experience without incurring physical damage or degradation in
performance when subsequently put into operation is 300 Gs based on a nonrepetitive half-sine shock pulse of
2ms duration.
2.9.6 Vibration
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive
mounting screws. Vibration may be applied in the X, Y or Z axis, with linear swept sine inputs.
2.9.6.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified
in this document are specified below.
2.9.6.2 Nonoperating vibration
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or
degradation in performance when subsequently put into operation are specified below.
2.10 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All
measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels .
2Hz to 22Hz 0.25 Gs (Limited displacement)
22Hz to 350Hz 0.50 Gs
350Hz to 500Hz 0.25 Gs
5Hz to 22Hz 3.0 Gs (limited displacement)
22Hz to 350Hz 3.0 Gs
35Hz to 500Hz 3.0 Gs
Note
For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the
following equation:
(Number of seeks per second = 0.4 / (average l average access time)
Table 3 Fluid Dynamic Bearing (FDB) motor acoustics
Idle* Seek
All models
2.1 bels (typ)
2.3 bels (max) 2.3 bels (typ)
2.4 bels (max)