G O D R I V E 1 2 0 A T QUANTUM
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 2.5"/SUPERSLIMLINE Cylinders | 1024| 731|
Capacity form/unform 127/ MB Heads 4| 9| 13|
Seek time / track 17.0/ 5.0 ms Sector/track | 26| 26|
Controller IDE / AT Precompensation
Cache/Buffer 32 KB LOOK-AHEAD Landing Zone
Data transfer rate 2.660 MB/S int Bytes/Sector 512
4.000 MB/S ext
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5 V Temperature *C 5 55 | -40 70
Power: sleep 0.2 W Humidity % 8 85 | 5 95
standby 0.2 W Altitude km -0.060 3.000| -0.060 12.000
idle 1.7 W Shock g 10 | 100
seek 2.2 W Rotation RPM 3600
read/write 2.0 W Acoustic dBA 30
spin-up 5.5 W ECC Bit 112,REED SOLOMON
MTBF h 150000
Warranty Month 12
Lift/Lock/Park YES Certificates CSA,FCC,IEC950,TUV,UL1950,VDE
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L A Y O U T
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QUANTUM GODRIVE 60/120 AT PRODUCT MANUAL 81-100947-03
+----------------------------+++++++---------------+++++--+
| +-+-+-+ +-+-+ |XX I
| CS DS SP |XX N
| |XX T
| |XX E
| |XX R
| |XX F
| |XX A
| |XX C
| |XX E
| |XX
| |XX
| |XX
| |XX
| |
| |XX
+---------------------------------------------------------+
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J U M P E R S
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QUANTUM GODRIVE 60/120 AT PRODUCT MANUAL 81-100947-03
Jumper Setting
==============
GoDrive 60/120AT hard disk drives can be configured as a master or a
slave drive, using either the jumper blocks on the drive's controller
board or by grounding certain lines on the interface connector.
XX| SP DS CS
XX| +-+-+ + +-+-+-+ + |
/ +----+++++-+--------------+++++++-+-----------------------+
Inter- | |
face! +-------+---+ +--------+-------+
| +-++-+ | |+-++-++-+ |
| ++++++Pins| |+++++++++ Pins |
| SP | | DS CS |
| +*--*+ | |+*--*+ |
| +----+ | |+----+Jumper |
| Jumper | | OR +*--*+ |
+-----------+ | +----+Jumper|
+----------------+
There are two sets of jumper pins. The SP is labeld "SP" for slave
present. The other set (three jumper pins) has two labels "CS" and
"DS" for Cable Select and Drive Select. The center pin is common to
both the CS and the DS positions.
When a jumper block is on the center pin and the pin nearest the
interface connector, DS is enabled. When a jumper block is on the
center pin and the pin furthest from the interface connector, CS is
enabled.
NOTE
Jumper blocks can be placed in a storage position by locating them on
one jumper pin as shown in the following Figure.
+-++-+ +-++-++-+
++++++Pins +++++++++ Pins
SP DS CS
+*--*+ +*--*+
+----+Jumper +----+Jumper
Master Drive Configuration
--------------------------
GoDrive 60/120 AT hard disk drives are configured at the factory as a
master drive as defined by the CAM (Common Access Method). This
configuration is shown in the following figure.
+-++-+ +-++-++-+
++++++Pins +++++++++ Pins
SP DS CS
+*--*+ +*--*+
+----+Jumper +----+Jumper
Master Drive with Slave Present
-------------------------------
When GoDrive 60/120 AT hard disk drives are configured as a master
drive, the drive looks for a slave drive by monitoring the PDIAG/DASP
lines.
Some hard disk drives when configured as a slave do not indicate
their presense on these two lines (GoDrive does). To indicate that a
slave is present for these drive (when using GoDrive as a master),
the slave present (SP) pins on GoDrive master must be jumpered as
shown.
+-++-+ +-++-++-+
++++++Pins +++++++++ Pins
SP DS CS
+*--*+ +*--*+
+----+Jumper +----+Jumper
Slave Drive Configuration
-------------------------
GoDrive drives can be configured as a slave drive as shown.
+-++-+ +-++-++-+
++++++Pins +++++++++ Pins
SP DS CS
+*--*+ +*--*+
+----+Jumper +----+Jumper
Cable Selection
---------------
The drive can be configured such that its status as a master or slave
drive can be determined by the cabling from the host system.
+-++-+ +-++-++-+
++++++Pins +++++++++ Pins
SP DS CS
+*--*+ +*--*+
+----+Jumper +----+Jumper
NOTE
This is extremely helpful when GoDrive 60/120 AT is used
as a removable subsystem where it can be either master drive or a
slave drive depending upon the cable to which is connected.
When a GoDrive is configured for cable selection, as shown in the
Figure below, it is the master drive if Pin 28 is grounded and a
slave if Pin 28 is not grounded.
For systems that do not use Pin 28 for another purpose (e.g., Address
Latch Enabled), the host system can tie Pin 28 to ground. Then the
cable connecting the host to the master has Pin 28 enabled (i.e., a
circuit exists), while the cable connecting the slave to either the
host or the master has the Pin 28 line servered.
Systems that use Pin 28 can use the cable selection method by
performing the following:
1. Connect the system cable in the following order
host <--> slave <--> master.
2. Cut the Pin 28 line between the slave and the master. This
allow Pin 28 to operate normally (an open - served connection)
between the host and the slave.
3. Tie Pin 28 (within the master drive header) to a nearby ground
(Pin 30, for example).
This process will allow the master drive to have Pin 28 grounded
while allowing the Pin 28 to be open between the host and slave
drive.
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I N S T A L L
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QUANTUM GODRIVE 60/120 AT PRODUCT MANUAL 81-100947-03
Notes on Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
Dimensions and Mounting
-----------------------
The drive can be mounted in any orientation. Maximum screw length is
3mm with three minimum full threads. The maximum mounting torque for
these screws is 120 inch-ounces.
NOTE
If the bottom mounting holes are used, the mating surface of the
assembly that attaches to the bottom must have a flatness of 0.076mm
(0.003 inches) or better;
Ventilation
-----------
GoDrive 60/120AT hard disk drives can operate without a cooling
fan, provided the ambient air temperature des not exceed 55*C
(131*F). Any user-designed cabinet must provide adequate air
circulation to prevent the maximum temperature from being exceeded.
Cable Connector
---------------
GoDrive 60/120AT hard disk drives have a single 2 x 22 connector (on
2mm centers) for both power and data. The connector also includes
four pins which are reserved for factory test points.
The recommended system mating connector is a Dupont part number
69764-044 or equivalent. The maximum cable length is 18 inches. To
assure that the system cable connector is installed with the proper
orientation, plug the Pin 20 hole on the system connector.
| Pin 1 |
| +------------------------------------------+------+ |
| |o o o o o o o o o o o o o o o o o o o o o o o o| |
| ++o o o o o o o o o o o o o o o o o o o o o o o++ |
| |++-----------------------+-----------------+------+| |
| | Pin 44 Pin 20 Pin 2 | |
+---+ +---+
Power Sequencing
----------------
GoDrive 60/120-AT hard disk drives require no power sequencing.
Applying or removing power during drive operation does not cause data
to be lost or corrupted. Although the drive requires no power
sequencing, Quantum recommends that is a controlled power dwon is
available from the system (e.g., in a system with an auto resume
feature), a Standby command should be issued to the drive prior to
the removal of power.
CAUTION
Data may be lost or corrupted in a sector being written at the time
of a power loss.
During power-on or power-off, the drive can sustain an open or a
short circuit on either the voltage or the return line.
Electrical Interface
--------------------
All signals are TTL-compatible. A logic one is greater than 2.0 volts
and less than 5.25 volts. Logic zero is greater than 0.0 volts and
less than 0.7 volts. The drive requires no terminating resistors.
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F E A T U R E S
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QUANTUM GODRIVE 60/120 AT PRODUCT MANUAL 81-100947-03
General Description
-------------------
Quantum's GoDrive 60AT and GoDrive 120AT hard disk drives are
part of a family of high performance, 2.5-inch form factor hard disk
drives manufactured to meet the highest product-quality standards.
GoDrive 60/120AT hard disk drives feature an embedded AT drive
controller and uses AT commands to optimize system performance. Be-
cause the drive manages media defects and error recovery internally,
these operations are fully transparent to the user.
Note: The GoDrive 60/120AT does not include a faceplate!
Features
--------
- Low-profile, optimized for number of disks
- Data-transfer rate of up to 4.0 megabyte per second, using
programmed I/O
- Proprietary 32K, look-ahead, programmable DisCache with WriteCache
- 112-bit Reed Solomon Error Correction Code (ECC), with 48-bit
double burst correction
- Automatic retry on read errors
- Transparent media-defect mapping
- High performance, in-line defective sector skipping
- Reassignment of defective sectors discovered in the field, without
reformatting
- Automatic actuator shipping lock and dedicated landing zone
- Emulation of IBM PC/AT task file register and all AT fixed-disk
commands
- Ability to daisy-chain two drives on the interface
- >150K hour projected field MTBF
Seek Time
---------
+-------------------------------+--------+
|Track-to-Track msec. typ. | 5 |
+-------------------------------+--------+
|Average msec. typ. | 17 |
+-------------------------------+--------+
|Full-Stroke msec. | 30 |
+-------------------------------+--------+
|Latency msec. avg. | 8.3 |
+-------------------------------+--------+
Error Reporting
---------------
At the start of a command's execution, GoDrive 60/120AT hard disk
drives check the COMMAND register for any conditions that would lead
to an abort command error. The drive then attempts execution of the
command. Any new error causes execution of the command to terminate
at the point at which it occurred. The following table list the valid
errors for each command.
-----------------+----------------------------+---------------------+
COMMAND |ERROR REGISTER |STATUS REGISTER |
+----------------------------+---------------------+
|BBK|UNC|IDNF|ABRT|TK0NF|AMNF|DRDY|DWF|DSC|CORR|ERR|
-----------------+---+---+----+----+-----+----+----+---+---+----+---+
Defect List | | V | V | V | | | V | V | V | V | V |
Exec. Drive Diag.| | | | | | | | | | | V |
Format Track | | | V | V | | | V | V | V | | V |
Identify Drive | | | | V | | | V | V | V | | V |
Initi. Parameters| | | | | | | V | V | V | | |
| | | | | | | | | | | |
Inval.Cmnd. Codes| | | | V | | | V | V | V | | V |
Read Buffer | | | | V | | | V | V | V | | V |
Read Configurati.| V | V | V | V | | | V | V | V | V | V |
Read Multiple | V | V | V | V | | | V | V | V | V | V |
Read Sectors | V | V | V | V | | | V | V | V | V | V |
| | | | | | | | | | | |
Read Sec. Long | V | | V | V | | | V | V | V | | V |
Read Verify Sec. | V | V | V | V | | | V | V | V | V | V |
Recalibrate | | | | V | V | | V | V | V | | V |
Seek | | | V | V | | | V | V | V | | V |
Set Configuration| V | | V | V | | | V | V | V | | V |
Set Features | | | | V | | | V | V | V | | V |
| | | | | | | | | | | |
Set Multiple Mode| | | | V | | | | | | | V |
Write Buffer | | | | V | | | | | | | V |
Write Multiple | V | | V | V | | | V | V | V | | V |
Write Sectors | V | | V | V | | | V | V | V | | V |
Write Sec. Long | V | | V | V | | | V | V | V | | V |
| | | | | | | | | | | |
Standby Mode | | | | | V | | | V | | V | V |
Idle Mode | | | | | V | | | V | | V | V |
Standby Mode | | | | | | | | | | | |
(auto power-down)| | | | | V | | | V | | V | V |
Idle Mode (auto | | | | | | | | | | | |
power-down) | | | | | V | | | V | | V | V |
-----------------+---+---+----+----+-----+----+----+---+---+----+---+
Key:
V = Valid errors for each command
ABRT = Abort command error
AMNF = Data address mark not found error
BBK = Bad block detected
CORR = Corrected data error
DRDY = Drive not ready detected
DSC = Disk seek complete not detected
DWF = Drive write fault detected
ERR = Error bit in the Status Register
IDNF = Requested ID not found
TK0NF = Track zero not found error
UNC = Uncorrectable data error
The format for GoDrive 60/120AT allocates one sector per cylinder
as a spare. In the factory, the media is scanned for defects. If a
sector on a cylinder found to be defective, the sector's address is
added to the drive's defect list. Sectors physically subsequent to
the defective sector are assigned logical block addresses such that
a sequential ordering of logical blocks results. This in-line sparing
technique is employed in an attempt to eliminate throughput reduction
resulting from a single defective sector on a cylinder.