P R O D R I V E L P S 3 4 0 A T QUANTUM
Native| Translation
------+-----+-----+-----
Form 3.5"/SLIMLINE Cylinders | 1011| |
Capacity form/unform 342/ MB Heads | 15| |
Seek time / track 14.0/ ms Sector/track | 44| |
Controller IDE / ATA2 FAST/ENHA Precompensation
Cache/Buffer 128 KB Landing Zone
Data transfer rate 1.250 MB/S int Bytes/Sector 512
13.000 MB/S ext DMA
Recording method RLL operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C |
Power: sleep W Humidity % |
standby W Altitude km |
idle W Shock g |
seek W Rotation RPM
read/write W Acoustic dBA
spin-up W ECC Bit
MTBF h 350000
Warranty Month
Lift/Lock/Park YES Certificates CSA,TUV,UL1950,VDE
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L A Y O U T
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QUANTUM PRODRIVE LPS 127/170/340 AT UNIVERSAL CONFIGURATION CARD
+---------------------------------------------------------+
| JP1+-+-+-+ |XX
| +-+-+-+ |XX
| SP DS CS |XX
| |XX
| |XX AT-Bus
| |XX
| |XX
| |XX
| |XX
| |XX
| |XX
| |
| |
+---------------------------------------------------------+
**********************************************************************
J U M P E R S
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QUANTUM PRODRIVE LPS 127/170/340 AT UNIVERSAL CONFIGURATION CARD
Jumper setting
==============
JP1 Drive Select/Cable Select/Slave Present
--------------------------------------------
+------+------+------+--------------------------------------------+
|DS |CS |SP | Description |
+------+------+------+--------------------------------------------+
|OPEN |OPEN |OPEN | Slave Drive |
| | | | Compatible with drive using PDIAG- line to |
| | | | handle Master/Slave communications |
+------+------+------+--------------------------------------------+
|OPEN |OPEN |CLOSED| Slave Drive |
| | | | The PDIAG- and DASP- lines are not driven |
+------+------+------+--------------------------------------------+
|CLOSED|OPEN |OPEN | Master Drive |
| | | | Uses DASP- to check for the presence of a |
| | | | Slave |
+------+------+------+--------------------------------------------+
|CLOSED|OPEN |CLOSED| Master Drive |
| | | | Uses the SP jumper to determine whether a |
| | | | Slave is present, without checking PDIAG- |
| | | | or DASP- |
+------+------+------+--------------------------------------------+
|OPEN |CLOSED| X | Slave or Master Drive, depending on the |
| | | | state of the Quantum Cable Select signal |
| | | | (pin 28) at the IDE-bus interface |
| | | | connector. |
| | | | If the signal state is set to OPEN |
| | | | (grounded) then the drive is configured a |
| | | | if DS were CLOSED, described above. If the |
| | | | Cable Select signal is set to CLOSED |
| | | | (high), then the drive is configured as if |
| | | | DS were OPEN, described above. |
+------+------+------+--------------------------------------------+
X indicates the jumper setting does not matter.
Caution: The CS and DS jumpers should never be installed at the same
time.
DS Drive Select Jumper
-----------------------
You can configure two drives on the ATA Interface as Master (Drive 0)
and Slave (Drive 1) using the DS jumpers. Set the CS jumpers to OPEN
for each drive. Then, set the DS Jumper to CLOSED on one drive to
configure that drive as Master. Set the DS jumper to OPEN on the
other drive to configure as Slave.
Note: For drives configured using the DS jumper, the order in which
drives are connected in a daisy chain has no significance.
CS Cable Select Jumper
-----------------------
When two ProDrive LPS 127/170/340AT hard disk drives are daisy-
chained together, they can be configured as Master and Slave by using
the CS jumper or by using the DS jumper - BUT NOT BOTH. To configure
the two drives using the CS jumper, set the CS jumper to CLOSED and
the DS jumper to OPEN on each drive.
Once you install the CS jumper, the drive is configured as a Master
or Slave by state of the Cable Select signal, which is pin 28 at the
IDE-bus interface connector. Quantum uses pin 28 as a vendor-specific
pin; it does NOT conform to the function normally allocated for this
pin according to the ATA (AT Attachment).
Pin 28 is grounded - that is, set to OPEN - on the cable coming from
the host. This configures the first drive as Master. Then, pin 28 on
the connector at the second drive should be made an open circuit by a
cut in signal line 28 in the cable from the first drive, so it
becomes high - that is, set to CLOSED - due to a pull-up in the
second drive. This configures the second drive as a Slave.
SP Slave Present Jumper
------------------------
The SP jumper normally is not needed. However, when the ProDrive LPS
127/170/340AT is configured as Master and is connected to a Slave
drive that does not implement the Drive Active/Slave Present (DASP-)
signal, it is necessary to set the SP jumper to CLOSED on the
ProDrive LPS 127/170/340AT.
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G E N E R A L
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QUANTUM ATA TIPS
Comparing the Fast ATA and Enhanced IDE Disk Drive Interfaces
-------------------------------------------------------------
Why are Fast ATA and Fast ATA-2 Important?
Faster data transfer rates are important because a computer is
only as fast as its slowest component. Today's 486, Pentium, and
PowerPC-based computers offer processor speeds many times faster
than only two years ago. Bus speeds have also increased with the
inclusion of 32-bit VL and PCI local buses, which have a maximum
data transfer rate of 132 MB/second.
Faster buses mean that data can be transferred from the storage
device to the host at greater speeds. Fast ATA and Fast ATA-2 allow
disk drives to store and access this data faster, thus enhancing the
other high-speed components in the system and removing the
bottleneck associated with older ATA/IDE drives. In short, Fast
ATA helps bring very high performance to desktop PC systems.
In addition, when compared to SCSI, Fast ATA is the least expensive
way to achieve faster disk drive data transfer rates and higher
system performance. The implementation of Fast ATA through system
BIOS provides performance without incremental hardware co sts.
Older systems can support Fast ATA using an inexpensive host
adapter.
Fast ATA and Fast ATA-2 are easy to implement in either VL or PCI
local bus systems. The hardware connection can be made using a
standard 40-pin ATA ribbon cable from the drive to the host
adapter. Direct connection to the motherboard further eases
integration when provided by the motherboard supplier.
Once connected, the high data transfer capabilities of Fast ATA can
be enabled through the data transfer options found in most CMOS BIOS
setup tables. Newer versions of BIOS provide automatic configuration
for Fast ATA drives.
Fast ATA can improve efficiency by allowing more work to be
completed in less time because the computer moves data faster.
Graphic, multimedia, and audio/visual software users will benefit
most because the speed of those applications, which work with large
blocks of data, are transfer-rate dependent.
The Fast ATA and Enhanced IDE interfaces both use the local bus to
speed data transfer rates. Enhanced IDE also uses the same PIO modes
as Fast ATA, although a data transfer rate equal to the PIO mode 4
rate has not been announced for Enhanced IDE. The major differences
between Fast ATA and Enhanced IDE are that the latter includes
three distinct features in addition to fast data transfer rates.
The additional features of Enhanced IDE are as follows:
High-capacity addressing of ATA hard drives over 528 MB -
a BIOS and device driver function.
Dual ATA host adapters supporting up to four hard disk drives per
computer system - a function of BIOS, operating system, and host
adapter, not the drive.
Support for non-hard disk drive peripherals such as CD-ROMs -
a function of BIOS and the operating system, not the drive
Each of these features supports improved functionality at a system
level, a positive development for the industry and end users.
However, support for all three features requires an extremely high
degree of integration and revisions to operating systems and hard-
ware, in addition to BIOS changes. Specific support is required not
only for the storage peripherals but also for host adapters, core
logic, the system bus, BIOS, and operating systems - virtually every
major block of PC architecture.
There is no central industry-supported standard that controls the
features of Enhanced IDE. With no standard, some products sold as
"Enhanced" may provide only one of the three features of Enhanced
IDE. For example, fast data transfer rate support is be coming
standard on mid-range and high-end local bus systems. This single
feature could satisfy the users immediate requirements without the
need for the other features of Enhanced IDE.
In the future, if the same system is upgraded to add the remaining
features of Enhanced IDE, users may be forced to purchase an Enhanced
IDE package that contains a feature already installed. This could
result in unnecessary costs, integration conflicts, and in-
compatibility with original factory implementations.
Fast ATA, on the other hand, represents only the fast data transfer
rates for ATA hard drives (support for PIO mode 3 or 4 and DMA mode
1 or 2). Fast ATA and Fast ATA-2 data transfer rates can be easily
achieved when the system BIOS and hard drive suppo rt the PIO and
DMA protocols.
BIOS that supports Fast ATA does not necessarily support high-
capacity addressing, dual host adapters or non-hard drive
peripherals. But these features are being introduced independently
by system manufacturers in order to compete in the PC marketplace.
All of Quantum's disk drives designed for PCs now support Fast ATA,
and new products with Fast ATA support will be introduced in early
1995. The drives are also fully backward compatible with older ATA/
IDE (non-Fast ATA) BIOS.
The Quantum drives support both the Extended CHS (Cylinder Head
Sector) and LBA (Logical Block Address) addressing methods in
overcoming the 528 MB DOS capacity barrier. Quantum drives can also
be used with dual host adapters.
Finally, there are no incompatibilities with Quantum hard drives
that would prevent computer systems from supporting non-hard drive
peripherals.
Quantum drives that support Fast ATA include the following families:
Quantum ProDrive LPS 170/210/340/420
Quantum ProDrive LPS 270/540
Quantum Maverick 270/540
Quantum Lightning 365/540/730
Quantum Daytona 127/170/256/341/514
Fast ATA and Fast ATA-2 are important technologies that can take
advantage of the performance provided by the latest high-speed
microprocessors and bus architectures. The high-speed interfaces
are based on industry standard specifications and are the least
expensive way to achieve faster disk drive data transfer rates.
Fast ATA is not a group of features that requires an extremely
high level of integration, and only represents the fast data transfer
rates for ATA hard drives (PIO mode 3 or 4 and DMA mode 1 or 2).
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