Features
Operating conditions
Temperature 5 to 55 degrees C* Relative humidity 8 to 90% non-condensing Maximum wet bulb temperature 29.4 degrees C non-condensing Gradient maximum temperature 15 degrees C/hour Altitude -300 to 3,048 mNon operating conditions
Temperature -40 to 65 degrees C Relative humidity 5 to 95% non-condensing Maximum wet bulb temperature 35 degrees C non-condensing Altitude -300 to 12,000 mNote: * The system is responsible to provide sufficient air movement to maintain surface temperature below 60 degrees C at the center of the top cover of the drive.
Operating shock
The hard disk drive will meet the following criteria while operating
in the respective conditions described below. There must be a delay
between shock pulses, long enough to allow the drive to complete
all necessary error recovery procedures.
Criteria Condition No errors 5 G, 11 ms half-sine shock pulse No data loss, seek errors or permanent damage 10 G, 11 ms half-sine shock pulse No data loss or 15 G, 5 ms half-sine shock pulse permanent damage 30 G, 4 ms half-sine shock pulse
Non operating shock
The drive will withstand without damage or degradation of performance,
a 75 G half-sine wave shock pulse of 11 ms duration
when heads are parked. When power is not applied to the unit, the
heads are automatically located in the parked position. The above
specification is for shocks applied in each direction of the
drives' three mutually perpendicular axis, one axis at a time.
Operating vibration
Due to the complexity of this subject we recommend that users
contact the IBM Hard Disk Drive Technical Support group representative to
discuss how to perform the necessary measurements.
The following voltage specifications apply at the drive power connector. Damage to the drive electronics may result if the power supply cable is connected or disconnected while power is being applied to the drive (no hot plug/unplug is allowed). There is no special power on/off sequencing required.
Input voltage
+5 volts supply 5V (+/-5% during run and spin up)1 +12 volts supply 12V (+10%, -8% during run and spin up)2
1To avoid damage to the file electonics 5V, power supply
voltage spikes must not exceed 7V.
2To avoid damages to the file electronics 12V, power supply
voltage spikes must not exceed 15V.
Power supply current
+5 volts +12 volts (all values in amps.) pop mean pop mean Idle average 0.32 0.26 Idle ripple (peak to peak) 0.20 0.48 Seek peak1 0.44 1.40 Seek average1 0.30 0.50 Start up (max) 0.60 2.00 Random R/W peak2 0.70 1.40 Random R/W average2 0.36 0.39 Stanby/sleep average 0.13 0.002
1Random seeks at 40% duty cycle.
2Seek duty = 30%, W/R duty = 45%, idle duty = 25%.
Power supply generated ripple as seen at the drive's power connector.
Maximum Notes +5V DC 100 mV pp 0-10 MHz +12V DC 150 mV pp 0-10 MHzDuring drive start up and seeking, 12 volt ripple is generated by the drive (referred to as dynamic loading).
If several drives have their power daisy chained together then the power supply ripple plus the ripple from other drive's dynamic loading must remain within the regulation tolerance of +10/-8%. A common supply with separate power leads to each drive is a more desirable method of power distribution.
To prevent external electrical noise from interfering with the drive's performance, the drive must be held by four screws in a user system frame which has no electrical level difference at the four screws position, and has less than +/-300 mV peak to peak level difference to the drive's power connector ground.
| Product highlights |
Mechanical data |
| Product description |
Jumpers and configuration |
| Command descriptions |
Electrical interface specification |