A T L A S I V 3 6 . 4 QUANTUM
Native| Translation
------+-----+-----+-----
Form 3.5"/HH Cylinders | | |
Capacity form/unform 36400/ MB Heads 16| | |
Seek time / track 6.9/ 0.8 ms Sector/track | | |
Controller ULTRA2 SCSI Precompensation
Cache/Buffer 2000 KB Landing Zone
Data transfer rate 20.000 MB/S int Bytes/Sector 512
80.000 MB/S ext
Recording method 24/25 PRML operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 55 | -40 70
Power: sleep W Humidity % 10 90 | 5 95
standby W Altitude km |
idle 11.6 W Shock g | 150
seek W Rotation RPM 7200
read/write W Acoustic dBA
spin-up W ECC Bit 352 REED SOLOMON
MTBF h
Warranty Month 60
Lift/Lock/Park YES Certificates
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J U M P E R S
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QUANTUM JUMPER DEFINITION
Jumper Settings
----------------
SCSI Disk Jumper Definitions
----------------------------
Quantum SCSI disk drives have multiple jumper setting options
and are used to set specific drive features. The most common settings
are used to define the drive SCSI ID and bus termination. Quantum
SCSI drives have additional jumper settings used for optional
features found on the drive. Listed below are the various jumper
options that may be found on Quantum SCSI drives and the
corresponding feature that they enable.
DS - Delay Spin
---------------
At power on or reset the drive motor starts to spin automatically
and the drive prepares itself to perform read or write operations.
With the Spin Delay feature enabled, at power on or reset the host
[SCSI adapter] must send a START/STOP UNIT command to activate the
drive motor for read or write operations. Spin Delay allows the drive
to perform power sequencing to prevent an overload of the system
power supply due to simultaneous, peak start-up current demands from
multiple devices.
EP - Enable Parity
------------------
When enabled the drive generates parity information and performs
parity checking of data across the SCSI bus. When disabled, parity
information is still generated but not checked.
J13 - Termination Power
-----------------------
When enabled this jumper supplies +5vdc termination power from
the drive to the SCSI bus. With this jumper removed the SCSI bus
must supply termination power. This jumper was used in place of
the Term Power jumper on earlier model drives that supported Term
Power as an option. At the factory, Quantum configures the disk drive
with the J13 jumper enabled; that is, with a jumper installed across
the pins labeled J13. To disable Termination Power supply from the
disk drive, remove the jumper across the pins labeled J13.
PF - Program Flash
------------------
This jumper is used on drives which support flash programming of
drive firmware. This feature is found on early models only. This is
not used in the field and should be open, ignore this jumper.
SCSI-Bus Device Identification
------------------------------
Used in combination, the jumper settings across the SCSI ID
reference pins determine the disk drive's SCSI-bus device I.D.
SD - Spin Delay
---------------
At power on or reset the drive motor starts to spin automatically
and the drive prepares itself to perform read or write operations.
With the Spin Delay feature enabled, at power on or reset the host
[SCSI adapter] must send a START/STOP UNIT command to activate the
drive motor for read or write operations. Spin Delay allows the drive
to perform power sequencing to prevent an overload of the system
power supply due to simultaneous, peak start-up current demands from
multiple devices.
SS - Self Seek
--------------
With the Self Seek jumper enabled the drive performs, at power on, a
continuous seek diagnostic. This diagnostic will not terminate
until: 1) Power is removed, 2) SS jumper removed. This feature
performs no other function on the drive and should not be used.
SY - Spindle Sync
-----------------
Used with disk drives that support synchronized spindle operation.
Master or slave synchronized operation is set through a SCSI Mode
Select Page. When the drive operates as a Master drive, it generates
a spindle synchronization reference signal. When operating as a
slave, the drive synchronizes its spindle according to the input
reference. The drive always maintains local speed regulation when no
reference signal is applied.
TE - Termination Enable
-----------------------
One of the requirements of the SCSI bus is that it be properly
terminated. If more than one SCSI device is connected to the host,
only the last device must be terminated. The Terminator Enable
(TE) jumper, when installed, enables an active termination circuit,
thereby terminating the SCSI bus. With the TE jumper removed, bus
termination is disabled.
At the factory, Quantum configures the disk drive with termination
enabled; that is, with a jumper installed across the termination pins
on the corresponding jumper. To disable termination, the jumper must
be removed.
TP - Termination Power
----------------------
The Termination Power (TP) jumper, when installed, enables
termination power to be provided by the disk drive. At the factory,
Quantum configures the disk drive with termination power enabled;
that is, with a jumper installed across the termination power pins on
the corresponding jumper. To disable termination power, remove the
jumper.
WP - Write Protect
------------------
This feature, when present, is used to enable write protection on
the drive. Installing the WP jumper disables the write feature to the
drive and makes the device read only. At the factory, Quantum
configures the disk drive with the WP jumper disabled.
WS - Wait Spin
--------------
At power on or reset the drive motor starts to spin automatically
and the drive prepares itself to perform read or write operations.
With the Wait Spin feature enabled, at power on or reset the host
[SCSI adapter] must send a START/STOP UNIT command to activate the
drive motor for read or write operations. Wait Spin allows the drive
to perform power sequencing to prevent an overload of the system
power supply due to simultaneous, peak start-up current demands from
multiple devices.