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QUANTUM GODRIVE 40/80S PRELIMINARY PRODUCT MANUAL REV. 0.5, 7/24/91 General Description-Quantum's GoDrive 40S and 80S hard disk drives are part of a family of high performance. 2.5 inch form factor hard disk drives manu-factured to meet the highest product-quality standards. GoDrive hard disk drives use non-removable, 2.5 inch rigid disks.
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QUANTUM PRODRIVE LPS 240MB SCSI HDD, REV 05-J, 50 PIN, 800-08-97 Product information Product Dimensions 8 x 6 x 2 inches Item Weight 3 pounds Manufacturer. Quantum Empire 2100S 2GB,3.5' SCSI Internal Hard Drive EM21S011-01-H. Condition is 'Used'. As you can see on the print out that Power on time is ZERO on most of them, but will sell as used because of open bag. Tested using Seagate Enterprise and passed all tests. Shipped with USPS Priority Mail.

Layout

QUANTUM PRODRIVE LPS 270/540S PRODUCT MANUAL 81-104075-01 AUG. 1993

Jumpers

QUANTUM PRODRIVE LPS 270/540S PRODUCT MANUAL 81-104075-01 AUG. 1993

Jumper Setting

x = Factory default

Jumper Options
--------------
The configuration of three jumpers controls the drive's mode of
operation:

- A2, A1, A0 - SCSI Bus Identification Jumpers

- PO - Product Option

In addition to the hardware jumpers listed above, the ProDrive LPS
270/540S hard disk drive supports software control SCSI ID, Parity
Enable, Wait Spin, and Self-Seek as determined by Mode Page 39h.

The factory default is for the SCSI ID to be controlled by hardware
jumper A2, A1, and A0 of JP1, SCSI bus parity checking to be
controlled by hardware jumper PO, and the Wait/Spin option disabled.
If the PO jumper is removed, SCSI bus parity checking is disabled.

SCSI-Bus Device Identification Jumpers
--------------------------------------
Used in combination, the jumper settings across pins A2, A1, and A0
determine the ProDrive LPS 270/540S hard disk drive's SCSI-bus
device identification (SCSI ID). By default, Quantum configures the
drive with a SCSI ID of six; that is, with jumpers installed across
the pins labeled A2 and A1, and no jumper installed across the pins
labeled A0.

The SCSI bus supports up to eight devices, including the host system.
A device's identification number determines its priority and must be
unique in the system.

Product Option (PO) Jumper
--------------------------
The function of the PO jumper is determined by Mode Page 39. With the
PO jumper installed, one of the following functions can be
controlled:

- Wait Spin
- Enable Parity
- Self Seek

The default setting is that the PO jumper is installed and contolling
the Enable Parity function, which checks parity on the SCSI bus.

Wait/Spin (WS) Function
-----------------------
At a power on or reset, with the Wait/Spin option disabled, the
motor start to spin automatically, and the drive will become ready
to perform read or write operations without the need for a start
command.

At a power on or reset, with the Wait/Spin option enabled, the host
must send a START/STOP UNIT command to activate the drive motor. The
Wait/Spin option permits power sequencing, to prevent an overload of
the host's power supply due to simultaneous, peak start-up current
demands from multiple devices. Once the drive receives a START/STOP
UNIT command, it will become ready to perform read or write
operations.

A delayed startup without the need for a START command may also be
enabled as determined by Mode Page 39h.

Enable Parity (EP) Function
---------------------------
The Enable Parity (EP) option controls parity checking of data across
the SCSI bus. With parity checking enable (PO installed), the drive
performs parity checking. With parity checking disabled (PO removed),
the drive continues to generate parity information, but does not
perform parity checking.

Self-Seek (SS) Function
-----------------------
Self-Seek can be initiated by the PO jumper in conjunction with Mode
Page 39h, or the host can initiate a Self-Seek test by issuing a SEND
DIAGNOSTIC command, with the self-test bit set to one.

When power is applied to the drive with the Self-Seek test enabled,
the drive initiates a Self-Seek test. The SCSI-bus device identifica-
tion (SCSI ID) currently selected determined the Self-Seek test
performed. For information about selecting a SCSI ID see the section
'SCSI-Bus Device Identification Jumpers'.

With the SCSI ID set to six, its default value, the drive performs
random seeks, verifying the cylinder ID after every seek. The random
seeks continue as long as power is applied to the drive or until the
drive encounters a seek error.

If the SCSI ID is set to any value other than six, the drive
executes seeks in a butterfly pattern.

Each butterfly seek pattern:

1. Start at cylinder zero.

2. Seeks to the last data cylinder.

5. Ends with a seek to cylinder zero.

Seek in this butterfly pattern continue as long as is applied to the
drive or until the drive encounters a seek error.

During the Self-Seek test, the drive can execute any command.

DIO - Disable Identify out (Byte 2, Bit 7)
------------------------------------------
When DIO is set to one, the drive does not require an IDENTIFY
message from the initiator to disconnect and reconnect. When DIO
is set to zero, the drive requires to send an IDENTIFY message prior
to disconnecting. The default is zero.

DII - Disable Identify IN (Byte 2, Bit 6)
-----------------------------------------
When DII is set to one, the drive does not send an IDENTIFY message
after reconnecting to an initiator. When DII is set to zero, the
drive sends an IDENTIFY message after reconnecting. The default is
zero.

FDB - Fast Deassertion of Busy (Byte 2, Bit 5)
----------------------------------------------
This parameter is neither used nor required by applications using the
drive. It is ignored. The default value is zero.

RUEE - Reallocate Uncorrectable Error Enable (Byte 2, Bit 4)
------------------------------------------------------------
When RUEE is set to one and the ARRE bit in page 1 of the error-
recovery parameters is set, the drive automatically writes data
containing uncorrectable, hard errors to a different logical block
and appends a new ECC that is correct for the data. Reading the new
block would result in a MEDIUM ERROR - Reallocated Uncorrectable Data
Read, with the sense key set to three and the sense code to AAH. Any
write to the new block will clear this condition. When RUEE is set to
zero and the drive determines that a hard error is encountered is
uncorrectable, the drive will not attempt automatic reallocation. A
CHECK CONDITION status, with a sense key of MEDIUM ERROR -
Uncorrectable Data Error will result. The default is zero.

FDPE - Fill Data Pattern Enabled (Byte 2, Bit 3)
------------------------------------------------
When FDPE is set to one, the drive will write the data pattern
specified in byte 2 of the FORMAT UNIT command into every user-
accesible sector on the drive when it exectes a FORMAT UNIT command.
When FDPE is set to zero, the drive will ignore the information in
byte 2 for the FORMAT UNIT command. Issuing a FORMAT UNIT command
typically causes loss of data, even if FDPE is set to zero. Users
should back up their data prior to formatting. The default is zero.

R - RESERVED
------------
Bit 2 of byte 2 is reserved and must be set to zero.

DUA - Disable Unit Attention
----------------------------
When DUA is set to one, the drive will not issue a CHECK CONDITION
status with the UNIT ATTENTION sense key on the first command follow-
ing a reset. The drive wi

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