Deskstar 3
Product description |
Models: DAQA-32160, 32700, 33240 |
Features |
| |
- PIO and DMA data transfer modes
- Industry standard mounting
- Advanced ECC on the fly (EOF)
- CHS and LBA addressing modes
- Power saving modes
- Robust design for EMC/RFI
- MR (magneto resistive) head technology
- No ID sector format
- S.M.A.R.T. function support
|
| Configuration |
| Interface |
ATA-3 |
| Formatted device capacity |
2.1/2.7/3.2 MB |
| Sector size |
512 Bytes |
| Recording zones |
8 |
| User cylinders |
6911 |
| Data heads |
4/6/6 |
| Disks |
2/3/3 |
| Recording density (max) |
120.9 KBPI |
| Track density |
7257 TPI |
| Performance |
| Rotational speed |
5400 RPM |
| Media transfer rate (average
in Mbits/sec) |
56.3(inner), 88.4(outer) |
| Interface
transfer rate (max AT) |
16.6 MB/sec PIO Mode-4
DMA Mode 2 Minimum sustained data rate 4.4 MB/sec |
| Data buffer |
128 K (2) |
| Read/Write
segmented Latency average |
5.56 ms |
| Seek time
(average) |
9.5 ms |
|
Track to track |
2.4 ms |
|
Full track |
15.7 ms |
| Dimensions |
| Height |
25.4 mm |
| Width |
101.6 mm |
| Length |
146.0 mm |
| Weight |
610 g |
Operating environment
| Operating
conditions |
| Temperature (see note) |
5 to 55º degrees C |
| Relative humidity |
8 to 90% non-condensing |
| Maximum wet bulb temperature
(non-condensing) |
29.4º degrees
C |
| Gradient maximum temperature |
15º C/hour |
| Altitude |
-300 to 3,048 m |
| Non-operating
conditions |
| Temperature |
-40 to 65º C |
| Relative humidity (non-condensing) |
5 to 95% |
| Maximum wet bulb temperature
(non-condensing) |
35º C |
| Altitude |
-300 to 12,000 m |
Note: 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
meets the following criteria while operating in 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. |
No errors |
5 G, 11 ms half-sine shock pulse |
| No data loss, seek
errors or permanent damage |
10 G, 5 ms
half-sine shock pulse |
| No data
loss or permanent damage |
15 G, 5 ms half-sine
shock pulse
30 G, 4 ms half-sine shock pulse |
Non operating shock |
| The
drive withstands without damage or degradation of performance, a
75 G half-sine wave shock pulse of 11 ms duration on six sides
when heads are parked. (When power is not applied to the unit
the heads are automatically located in the parked position).
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 technical support group representative to
discuss how to perform the necessary measurements of they
believe this to be an area which reguires evaluation. |
DC power requirement
| 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 |
Notes: |
- To avoid damage to the file electonics 5V, power supply
voltage spikes must not exceed 7V.
- To avoid damages to the file electronics 12V, power supply
voltage spikes must not exceed 15V.
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