Features
- Industry standard ATA/IDE interface.
- 2 recording zones.
- Magneto resistive heads.
- PRDF data channel (partial response maximum likelihood (PRML) with
digital filter).
- 512 KB multi-segmented data buffer.
- Industry standard mounting
- Low command overhead.
- Write cache support.
- Read ahead caching.
- 1 inch high form factor.
DC Power requirement limits
The following voltage specifications apply at the drive power connector.
There are no special power on/off sequencing requirements.
+5 Volt supply
+\- 5.0% (during run and spin-up)
+12 Volt supply
+\- 5.0% (during run)
- 7.0% + 5.0% (during spin-up)
Power Supply Notes Population Population
Current +5 VDC Mean Stand Dev
Power up minimum voltage slew rate = 4.5 V/sec
Idle average 0.742 amps (1) .0025 amps
R/W average 1.017 amps .0970 amps
Spin-up max 0.802 amps
Power supply Notes Population Population
Current +12 VDC Mean Stand Dev
Power up minimum voltage slew rate = 7.4 V/sec
Idle average 0.306 (2) .013 amps
R/W average 1 op/sec 0.576 amps .496 amps
Spin-up max 1.548 amps
File power
Idle average 6.803 watts .11 watts
R/W power average 11.99 watts .496 amps
Note: The file automatically goes into standby after 3 seconds of
idle. There is no additional command overhead incurred when coming out of
standby. The spindle motor is not shut off during standby.
Note: The current at start is the total 12 volt current required (ie,
the motor start current, module current and voice coil retract current).
Data organization
Capacity
Model A10
bytes/ gross formatted logical
logical sectors/ capacity blocks/
block track (bytes) file
512 108 90 1,052,175,360 2,055,030
Notch 1 Notch 2
Notch* Notch 1 Notch 2
Total cylinders (total cyl) 3016 1120
User cylinders (user cyl) 3002 1117
Band 1 user cylinders (b1ucyl) 1998 746
Band 2 user cylinders (b2ucyl) 1004 371
Tracks/cylinder (trk/cyl)
Model A10 3
Gross bytes/track (gb/trk) 66667 55556
Overhead bytes/sector (ob/set 104.4 011.5
User bytes/sector (ub/set 512
Sectors/logical blck (set/1ba) 1
Band 1 spares/cylinder (b2spr/cyl) 15 15
Band 2 spares/cylinder (b2spr/cyl) 20 20
Last cylinder extra spares (1cpsr) 32
Note*: The recording band located towards the outer diameter (OD) is
referred to as Notch 1 while the recording band located towards the inner
diameter is called Notch 1.
Operating environment
The drive operates within its' performance limits when the following
environment is maintained. Product life calculations are based on the no
environment for a typical application.
Humidity:
Operating 5% to 90% noncondensing
Storage 5% to 95% noncondensing
Shipping 5% to 100%
(applies at a packaged level)
Wet Bulb Temperature:
Operating 80 degrees F (26.7 degrees C) maximum
Shipping/Storage 85 degrees F (29.4 degrees C) maximum
Elevation:
Operating -1000 to 10000 feet
(-304 to 3048 meters)
Shipping/Storage -1000 to 40000 feet
(-304 to 12912 meters)
Temperature:
Operating ambient 41 to 131 degrees F (5 to 55 degrees C)
Operating casting 41 to 140 degrees F (5 to 60 degrees C)
temperature
Shipping -40 to 149 degrees F (-40 to 65 degrees C)
Storage 34 to 149 degrees F (1.1 to 65 degrees C)
Temperature Gradient:
Operating 18 degrees F (10 degrees C) per hour
Shipping/Storage below condensation
These temperature limits are extremely important and must not be exceeded at the
worst case drive and system operating conditions with the drive randomly
seeking, reading, and writing.
Ripple
Externally generated ripple as seen at drive connector:
Voltage Maximum Notes
+5 VDC 100 mV peak-to-peak 0-10 MHz
+12 VDC 150 mV peak-to-peak 0-10 MHz
During 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 other drive's dynamic loading
must remain within the regulation tolerance window of +\- 5%. A common drive
supply with separate power leads to each drive is a more desirable method of
power distribution.
The file's mounting holes are electrically isolated from the file's disk
enclosure. The disk enclosure is not a ground potential; therefore, any user
mounting scheme must not result in the disk enclosure being shorted to ground.
Note: Hot plugging is not supported.
Start and stop times
Time Nominal Maximum
Power-up 2.0 sec 2.4 sec
Start-up 15 sec 30 sec
Spin-up 6.7 sec 15 sec
Stop time 9.0 sec 12.5 sec
Bring-up sequence times and stop times
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