Fujitsu M2266S, M2266H Technical Handbook
CO
FUJITSU
FUJITSU AMERICA, INC.
M2266S/H
Intelligent Disk Drive
Technical Handbook
FS810125-01.. . B
Disk Manager® is a registered trademark of Ontrack Systems, Inc.
SpeedStor® is a registered trademark of Storage Dimensions, Inc.
VFeature® is a registered trademark of Golden Bow Systems.
Copyright 1990, Fujitsu America, Inc.
Printed in the U.S.A.
Edition
A
B
Date published
August, 1990
REVISION RECORD
Revised contents
First Printing
Editing
Specification No.: FS810125.01
FB104961
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The contents of this manual are subject to
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All Rights Reserved,
FAI Copyright 01990 FUJITSU LIMITED.
FS810125-01 . . . B
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Fujitsu America, Inc.
FS810125-01 B
iii
Technical Handbook
Table of Contents
M2266S/l-1
List of Tables
List of Figures
Section 1. General Description
Section
Standard Features
Hardware Structure
System Configuration
Model/Part Number Cross References
2. Installation
Introduction
Outer Dimensions
Mounting
Power Supply Requirements
Power Supply to SCSI Terminating Resistor
Connectors
Connection Requirements
Environmental Requirements
Mounting Frame Structure
Service Clearance Area
Allowable Input Voltage and Current
Current Waveform
Power On/Off Sequence
Sequential Starting of Spindle Motors
Power Supply Connector
SCSI Connector
SG Terminal
Connectors for External Operator Panel
SCSI Cable
Power Cable
DC Ground
External Operator Panel
Requirements
ii
iii
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Section 3. Hardware Installation
Notes on Handling Drives
Connections
Setting Terminals
Setting Terminals CN3 and CN9
Setting Terminals CNHI, CNH2, CNH3, and CNH4
SCSI Terminating Resistor
Mounting Drives
Mounting Procedures
Connecting Cables
Confirming Operations after Installation
Initializing the drive
Section 4. Software Installation
Introduction
Preparation of the Hard Disk for DOS Applications
Definition of Drive Type
Drive Partitioning
Basic Steps for Software Installation
Section 5. Specifications
Section 6. Troubleshooting
Troubleshooting checklist
Diagnostics
Self-Diagnostics
Test Programs
Maintenance Information
Revision Numbers
Spare Parts
SCSI Bus Signal Assignments
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3-4
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List of Tables
Technical Handbook
M2266S/H
Table ii
Table 3.1
Table 5.1
Table 5.2
Table 5.3
Table 6.1
Table 6.2
Table 6.3
Table 6.4
Figure 1.1
Figure 1.2
Figure 2.1
Figure 2.2
Figure 2.3
Figure 2.4
IDD Models and Part Numbers
Setting Checklist
Drive Functional Specifications
SCSI Functional Specifications
Environmental Specifications
Self-Diagnostic Functions
Spare Parts
SCSI Connector Signal Assignments
(Single-Ended Type: M2266S)
SCSI Connector Signal Assignments
(Differential Type: M2266H)
List of Figures
M2266S Outer View
System Configuration
Exterior Dimensions of the M2266S
without Front Panel
Exterior Dimensions of the M2266S
with Front Panel
Exterior Dimensions of the M2266H
without Front Panel
Exterior Dimensions of the M2266H
with Front Panel
1-9
3-14
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5-3
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6-2
6-7
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Figure 2.5
Figure 2.6
Figure 2.7
Figure 2.8
Figure 2.9
Figure 2.10
Figure 2.11
Figure 2.12
IDD Orientation
Mounting Frame Structure
Service Clearance Area
Current Waveform (+12 VDC)
Power On/Off Sequence (1)
Power On/Off Sequence (2)
Power On/Off Sequence (3)
Supplying Power to the Terminating
Resistor
Figure 2.13
Figure 2.14
Figure 2.15
Figure 2.16
Figure 2.17
Figure 2.18
Figure 2.19
Figure 2.20
Figure 2.21
Positions of M2266S Connectors
Positions of M2266H Connectors
Power Supply Connector
SCSI Connector
SC Terminal
External Operator Panel Connector
SCSI Cable Connector
Connection of the SCSI Cable
Example of External Operator
Panel Circuit
Figure 2.22
DE Surface Temperature Measurement
Point
Figure 3.1
Figure 3.2
SCSI Bus Connections
The Setting Terminals and Terminating 3-5
Resistor (M2266S)
Figure 3.3
The Setting Terminals and Terminating
Resistor (M2266H)
Figure 3.4 Setting Terminals CN3/CN9
Figure 3.5
Setting Terminals CNHI, CNH2, CNH3,
and CNH4
Figure 3.6
SCSI Terminating Resistor Module
(M2266S)
Figure 3.7
SCSI Terminating Resistor Module
(M2266H)
Figure 3.8
MODE SELECT Command for
Reformatting
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2-8
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Figure 6.1
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Revision Label
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Technical Handbook
M2266S/H
Section 1. General Description
This
is the preliminary manual for the M2266 manual and is subject to
change without notice.
This section describes the features and configuration of the M2266S/H
intelligent disk drive. This drive is a high-performance, large-capacity, 5
1/4-inch fixed disk drive with an embedded SCSI controller.
The interface between the IDD (Intelligent Disk Drive) and host system is
based on the Small Computer System Interface (SCSI) ANSI standard
(X3.131, 1986.)
The flexibility and expandability of the SCSI, as well as the powerful
command set of the IDD, allow the user to construct a high-performance,
reliable disk subsystem with large storage capacity.
The IDD is available with two different kinds of SCSI bus, based upon
electrical requirements:
M2266S
Single-Ended SCSI
•
M2266H
Also, the IDD is available with the following models based upon data format
at factory shipment. The drives are preformatted at 512 bytes per sector, but
may easily be reformatted in the field to any sector size from 180 to 4128
bytes per sector, in 2-byte increments.
Differential SCSI
Note: Some earlier revisions of the drive have a maximum bytes per sector
of 3808 bytes.
M2266S
M2266H
M2266SA
M2266HA
M2266SB
M2266HB
Fujitsu America, Inc.
256 bytes (data block length)
256 bytes (data block length)
512 bytes (data block length)
512 bytes (data block length)
1024 bytes (data block length)
1024 bytes (data block length)
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Standard Features
Compactness
Since the SCSI controller circuit is inside the IDD PCA in the standard 5 1/4-
inch fixed disk drive form factor, the IDD is extremely compact. The IDD
can be connected directly to the SCSI bus of the host system.
SCSI/CCS Standard
The IDD provides not only SCSI basic functions but also the following
features:
•
Arbitration
•
Disconnection/Reselection
Data Bus Parity
•
Command set which meets the logical specification of the SCSI CCS
•
(Common Command Set for Direct Access Device) Requirements
(Rev. 4B).
The SCSI commands can manipulate data through logical block addressing
regardless of the physical characteristics of the disk drive. This allows
software to accommodate future expansion of system functions.
High-Speed Data Transfer
The data transfer rate on the SCSI bus is 2.00MB/s maximum, in
asynchronous mode and 4.8 MB/s maximum in synchronous mode. Such a
high data transfer rate on the SCSI bus can be useful with the large capacity
buffer in the IDD.
Notes:
1.
2.
1-2
The maximum data transfer rate in asynchronous mode may be
limited by the response time of the initiator and by the SCSI bus
length.
The maximum data transfer rate in synchronous mode on the
single-ended SCSI bus may be limited by the cable length and
transmission characteristics of the SCSI bus.
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M2266S1 H
Continuous Block Processing
The addressing method of data blocks is logical block address. The initiator
can access data by specifying the block number in a logically continuous data
space without regard to the physical structure of the track or of cylinder
boundaries.
The continuous processing of up to 64K blocks in a command can be
achieved, aid the IDD can perform continuous read/write operations when
processing data blocks across track or cylinder boundaries.
256KB Data Buffer
Data is transferred between the SCSI bus and the disk media through the
embedded 256KB data buffer in the IDD.
Since the initiator can control the disconnect/ reconnect timing on the SCSI
bus by specifying the condition of stored data to the data buffer or empty
condition of the data buffer, the initiator can perform the effective
input/output operations by utilizing the high data-transfer capability of the
SCSI bus, regardless of the actual data transfer rate of the disk drive.
Read-Ahead Cache Feature
After executing the READ command, the IDD reads automatically and stores
(prefetches) the subsequent data blocks into the data buffer (Read-Ahead
caching.) This function may be programmed to prefetch data in amounts
from one sector's worth to 256 Kbytes of data.
The high-speed sequential data access can be achieved by transferring the
data from the data buffer without reaccessing the disk in case the subsequent
command requests the prefetched data blocks.
Command Stack Feature
The command stack feature of the IDD corresponds to up to seven initiators.
Therefore, the IDD can accept and stack the input/output command issued
by another initiator even if the IDD is executing another command. The
stacked command is retrieved and executed in stacked order after the
present command has completed execution.
Reserve and Release Functions
The IDD can be accessed exclusively in the multi-host or multi-initiator
environment by using the reserve and release functions.
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Error Recovery
The IDD can try to recover from errors in the SCSI bus or the disk drive
using its powerful retry processing. If a recoverable data check occurs, error-
free data can be transferred to the initiator after being corrected in the data
buffer. The initiator software is released from the complicated error
recovery processing by these error recovery functions of the IDD.
Automatic Alternate Block Reassignment
If a defective data block is detected during read or write, the IDD can
automatically reassign its alternate data block.
Programmable Data Block Length
Data can be accessed with a fixed block-length unit. Data block length is
programmable, and can be set during formatting to the most suitable length,
from 180 to 4,128 bytes, with a 2-byte boundary.
Defective Block Slipping
A logical data block can be reallocated in a physical sequence by slipping the
defective data block during formatting. This results in high speed
contiguous data-block processing without a revolution delay due to a
defective data block.
High-Speed Positioning
A rotary voice coil motor achieves fast positioning.
Large Capacity
The unformatted capacity is 1266 MB. Typically, at 512 bytes per sector the
formatted capacity is 1079 MB. A disk subsystem with large capacity can be
constructed that uses space efficiently.
Start/Stop of Spindle Motor
Using the SCSI command, the host system can start and stop the spindle
motor.
Diagnosis
The IDD has a diagnostic capability that checks internal controller functions
and drive operations to facilitate testing and repair.
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Low Power Consumption
By using highly-integrated LSI components, the power consumption of the
IDD is very low, enabling use of the unit in a wide range of ambient
temperatures between 5°C and 45°C.
Low Noise and Low Vibration
The IDD is quiet, running at approximately 45 dB (A-scale weighting) even
during seek, making it ideal for office use. The IDD has rubber vibration
isolators, which minimize the transfer of vibration.
Hardware Structure
Figure 1.1 shows the outer view of the IDD. The IDD consists of a disk
enclosure (DE), a read/write preamplifier PCA, a controller PCA, and
mounting brackets.
The DE is completely sealed and consists of disks, heads, the spindle motor,
the actuator, the recirculation filter, the breather filter, the cover, and the
base.
Fujitsu America, Inc.
Figure 1.1 M2266S Outer View
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Disks
The Winchester-type disks have an outer diameter of 130 mm (5.12 inches)
and an inner diameter of 40 mm (1.57 inches). The disks are good for at least
10,000 contact starts and stops.
The IDD uses the following number of disks:
M2266: 8 disks
Heads
The Whitney-type CSS (contact start/stop) heads are in contact with the
disks when the disks are not rotating, and automatically float when the
rotation reaches nominal speed.
Spindle Motor
The disks are turned by a direct-drive DC motor. The motor turns at 3600
rpm, ±0.2%. This precision is achieved through a feedback circuit which
includes Hall-effect elements mounted in the motor assembly.
Actuator
The actuator, which uses a rotary voice coil motor (VCM), consumes little
power and generates little heat. The head assembly on the tip of the actuator
arm is controlled by electrical feedback from servo information read-out
through the servo head.
Servo information is used as a control signal activating the actuator. It is
used as track crossing information in positioning, and track following
information during data write/read. The actuator positions heads on the
innermost landing zones over the disk when the power is off or the spindle
motor is stopped.
Air Circulation
The heads, disks, and actuator are sealed inside a disk enclosure (DE) to keep
out dust and other pollutants.
The DE has a closed-loop air recirculation system. Using the movement of
the rotating disks, air is continuously cycled through a filter. This filter will
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M2266S/H
trap any dust generated inside the enclosure and keep the air inside the DE
contaminant-free. To prevent negative pressure in the vicinity of the
spindle when the disks begin rotating, a breather filter is attached. The
breather filter also equalizes the internal air pressure with the atmospheric
pressure due to surrounding temperature changes.
Read/Write Circuit
The read/write circuit uses LSIs and head ICs to prevent errors caused by
external noise, thus increasing reliability.
Controller Circuit
The controller circuit uses LSIs to increase reliability and uses a high-speed
Micro-Processing Unit (MPU) to increase the performance of the SCSI
controller.
System Configuration
Figure 1.2 shows the system configuration. The IDDs are connected to the
SCSI bus of host systems and are always operated as target. The IDDs
perform input/output operations as specified by the SCSI devices that
operate as initiators.
LUN =
A
0 (hoed)
1-7
Host system
(A)
lost system - aHost
I
-
(B)
adapter
Figure
Fujitsu America, Inc.
Host
#6
( SCSI bus
I DI)
IDD
>
Controller LUN=0 LUN=n
Controller
>
Controller
N,
/ #4
dapter
#7
(
System Configuration
1.2
SCSI 10
FS810125-01
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)
...
#0
#1
#2
#3
#5
M2266S/H
Technical Handbook
SCSI Bus Configuration
Up to eight SCSI devices can be connected to the SCSI bus, with any
combination of the SCSI devices operating as initiators and operating as
targets.
For example, the system can be configured as a multi-host system on which
multiple host computers that operate as initiators are connected through the
SCSI bus.
Using the disconnect/reconnect function, concurrent input/output
processing is possible on multi-SCSI devices.
Peripheral Device Addressing
Each SCSI device on the bus has its own unique address (the SCSI ID
number shown in Figure 1.2). For input/output operations, a peripheral
device attached to the SCSI bus and operating as the target is addressed as the
logical unit. A unique address or logical unit number (LUN) is assigned to
each logical unit.
The initiator selects one SCSI device by specifying the SCSI ID, and then
specifies the LUN to select the peripheral device for input/output
operations.
When the IDD is constructed so that the whole volume of disk drives is a
single logical unit, the selectable SCSI ID and LUN are as follows:
•
SCSI ID: Jumper selectable from 0 to 7
•
LUN: 0 (fixed)
Model/Part Number Cross References
Each model has a different data format, front panel, and mounting-screw
type. Table 1.1 shows the IDD model names and part numbers. To change
the data format, reinitialize the drive on your system.
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M2266S/H
Table 1.1 IDD Models and Part Numbers
Note: Metric (M4) mounting screws are not normally used in North
America.
Single-Ended SCSI
(1)
Model
M22665
M2266SA
M2266SB
(2)
Model
M2266H
M2266HA
M2266HB
Block
length
1,024 B
Differential SCSI
Block
length
1,024 B
256 B
512 B
256 B
512 B
Storage
capacity
953.1 MB
1,079.1 MB
1,140.2 MB
Storage
capacity
953.1 MB
1,079.1 MB
1,140.2 MB
Front
panel
None
Provided
None
Provided
None
Provided
None
Provided
None
Provided
None
Provided
Front
panel
None
Provided
None
Provided
None
Provided
None
Provided
None
Provided
None
Provided
Mounting
screws
M4
M4
#6-32UNC
#6-32UNC
M4
M4
#6-32UNC
#6-32UNC
M4
M4
#6-32UNC
#6-32UNC
Mounting
screws
M4
M4
#6-32UNC
#6-32UNC
M4
M4
#6-32UNC
#6-32UNC
M4
M4
#6-32UNC
#6-32UNC
Part number
B03B-4945-B803A
B03B-4945-B803A#B
B03B-4945-U803A#N
B03B-4945-B803A#NB
B03B-4945-B813A
B03B-4945-B813A#B
B03B-4945-B813A#N
B03B-4945-B813A#NB
B03B-4945-B823A
B03B-4945-B823A#B
B03B-4945-B823A#N
B03B-4945-B823A#NB
Part number
B03B-4945-B853A
B03B-4945-B853A#B
B03B-4945-B853A#N
B03B-4945-B853A#NB
B03B-4945-B863A
B03B-4945-B863A#B
B03B-4945-B863A#N
B03B-4945-B863A#NB
B03B-4945-B873A
B03B-4945-B873A#B
B03B-4945-B873A#N
B03B-4945-B873A#NB
Remarks
Remarks
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Section 2. Installation Requirements
Introduction
Installation of the M2266S/H disk drive is a two-part process:
•
Mechanical and electrical installation of the hardware
•
Performance of the software procedures needed to bring the device to
operational readiness.
This section contains information on the requirements for hardware
installation, including the physical dimensions that assist in mounting the
device, the cabling schemes, and information on how to set the jumpers.
For specific information on installing the drives, see section 3. For
information on software installation of the drive in a Personal Computer
environment, see section 4.
Outer Dimensions
Figures 2.1 to 2.4 show the exterior dimensions of the IDD and the positions
of the holes for the IDD mounting screws.
Notes:
1.
Dimensions are in mm.
2.
The depth does not include the dimension of the hook for mounting
the cable on the interface connector.
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IIIIIIIIfIIIIIIIIIIIINII l
Figure 2.1 Exterior Dimensions of the M2266S without Front Panel
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M2266S/H
Figure 2.2 Exterior Dimensions of the M2266S with Front Panel
Fujitsu America, Inc.
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U
z
Figure 2.3 Extenor Dimensions of the M2266H without Front Panel
2-4
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Oh
ON
Ito
fill
lID
ItOh
Technical Handbook
M2266S/H
gI
IR
Figure 2.4 Exterior Dimensions of the M2266H with Front Panel
Fujitsu America, Inc.
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Mounting
Figure 2.5 shows the permissible orientations of the IDD. The tolerance of
the angle is ±5° from the horizontal plane.
Direction
of gravity
(n) Horizontal
(b) Vertical
(ci Vortical
Figure 2.5 IDD Orientation
Mounting Frame Structure
The disk enclosure (DE) of the IDD serves as a signal ground (SC) and is
insulated from the mounting frame. As this insulation is maintained after
the IDD is mounted in the system, the following precautions must be
followed:
Note:
Generally, SC and FG (frame ground) are connected at one point in the
system enclosure. To maintain insulation when mounting the IDD:
Use the frame with an embossed structure to avoid contact between
(a)
the DE base and FG.
As shown in Figure 2.6, the inward projection of the screw from the
(b)
IDD frame wall at the corner must be 4 mm or less.
4 or lens
2-6
4 or lens
(Unit mm)
Figure 2.6 Mounting Frame Structure
FS810125-01 . . . A
Fujitsu America, Inc.
Technical Handbook
M2266S/H
Service Clearance Area
Figure 2.7 shows the service clearance area, which must be accessible during
IDD installation or maintenance.
[Surface SI
•
Cable connection (M2266H)
[Surface P1
Cable connection (M2266S)
•
SG pin
•
Setting terminal
•
External operator panel
connection
[Surface RI
•
[Surface TI
•
External operator [Surface Qi
panel connection
• SCSI terminating resistor
•
•
Hole for mounting screw
Setting terminal, test pin
Hole for mounting screw
Figure 2.7 Service Clearance Area
Power Supply Requirements
Allowable Input Voltage and Current
The power supply input voltage measured at the power supply connector
pin at the receiving end of the IDD must satisfy the requirement given in
Table 5.3.
Current Waveform
Figure 2.8 shows the waveform of +I2VDC.
Fujitsu America, Inc.
FS810125-01 ... A
2-7
M2266S/H
Technical Handbook
At start of spindle motor
(a)
rotation
(A)
5
4
'Iu
•
1
3
2
I
5 10 15 20 25 (s)
Seek, read, and seek
(b)
(0--> 500 CYL)
(A)
5
4
3
2
?%M~~
1
10
20
44
30 (ms)
Figure 2.8 Current Waveform (+12 VDC)
Power On/Off Sequence
The order of the power on/off sequence of +5 VDC and +12 VDC,
(a)
supplied to the IDD, does not matter.
In a system that uses the terminating resistor power supply signal
(b)
(TERMPWR) on the SCSI bus, the requirements of +5 VDC shown in
Figure 2.9 must be satisfied between the IDD and at least one of the SCSI
devices supplying power to that signal.
SCSI device
supplying power (+ 5 VDC)
TERMPWR
to
4.0 V
IDD
2-8
(+5 VDC)
4.0 V
/
Tj0
\4 0 V
T20
Figure 2.9 Power On/Off Sequence (1)
FS810125-01
. . .
A
Fujitsu America, Inc.
Technical Handbook
M2266S/H
In a system that does not use the terminating resistor power supply
(c)
signal (TERMPWR) on the SCSI bus, the requirements for +5 VDC
shown in Figure 2.10 must be satisfied between the IDD and the SCSI
device with the terminating resistor circuit.
SCSI
device with
terminating
resistor circuit
IDD
(+5 VDC)
(+5VDC)
4.OV
4.0
V
T10
T20
4.0 V
40V
Figure 2.10 Power On/Off Sequence (2)
Between the IDD and other SCSI devices on the SCSI bus, the +5 VDC
(d)
power on/off sequence is as follows:
•
In a system with all its SCSI devices designed to prevent noise from
leaking to the SCSI bus when power is turned on or off, the power
sequence does not matter if the requirement in (b) or (c) is satisfied.
•
In a system containing an SCSI device that is not designed, to prevent
noise from leaking to the SCSI bus, the requirement given in Figure
2.11 must be satisfied between that SCSI device and the IDD.
SCSI device
without noise
leak prevention
IDD
(+5 VDC)
(+SVDC)
4.75 V
0.5V
T10
4.75 V
05V
T20
Figure 2.11 Power On/Off Sequence (3)
Fujitsu America, Inc.
FS810125-01 . . . A
2-9
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