Warning: Printed copies of this document are considered current only on the date of print. Replacement and disposal of downlevel versions is the responsibility of the document holder.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
HItachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
Warning: Printed copies of this document are considered current only on the date of print. Replacement and disposal of downlevel versions is the responsibility of the document holder.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
1st Edition (Rev 1.0) (11 February 2004) DRAFT
2nd Edition (Rev 2.0)(30 September 2004) Revised
3rd Edition (Rev. 2.1)(09 March 2006) Revised
4th Edition (Rev. 3.1)(01 November 2006) Final
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Hitachi Global Storage Technologies may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents.
Table 197. Unit Error Codes list................................................................................285
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
HItachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
1.0 General
1.1 Introduction
This document describes the specifications of the following Hitachi 3.5 inch SCSI drives.
•HUS151414VL3600(68-pin)
•HUS151414VL3800(80-pin)
•HUS151473VL3600(68-pin)
•HUS151473VL3800(80-pin)
•HUS151436VL3600(68-pin)
•HUS151436VL3800(80-pin)
Note: The specifications in this document are subject to change without notice.
For technical and ordering information, please visit our website at: http://www.hitachigst.com/portal/site/hgst
1.2 Glossary
WordMeaning
KbKilobit = 1000 bits
MbMegabit = 1,000,000 bits
GBGigabyte = 1,000,000,000 bytes
MBMegabyte = 1,000,000 bytes
KBKilobyte = 1000 bytes
PFAPredictive Failure Analysis
S.M.A.R.T.Self-Monitoring and Reporting Technology
SESingle-ended SCSI
LVDLow Voltage Differential SCSI
FC-ALFibre Channel - Arbitrated Loop
1.3 Caution
This drive can be damaged by electrostatic discharge (ESD). Any damages incurred to the drive after its removal from the
shipping package and the ESD protective bag are the responsibility of the user.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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2.0 Outline of the drive
•Storage capacities of 147 GB, 73 GB, and 36 GB
•Ultra 320
•Variable Sector Size (512-528 bytes/sector)
•T agged Command Queuing support
•Automatic read/write data transfer
•3.7 ms seek time in read operation for 147 GB
•3.6 ms seek time in read operation for 73 GB
• 3.3 ms seek time in read operation for 36 GB
•Adaptive read ahead algorithm
•Write Cache
•Back to back write
•ECC on the fly
•Automatic defect reallocation
•Self diagnostics at power on
•Closed loop actuator servo
•High level of integration of the electronics
•Non head disk contact start stop
•Spindle rotation of 15,000 RPM
•Automatic actuator lock
•PFA (SMART)
•Glass substrate disks
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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3.0 Fixed-disk Subsystem Description
3.1 Control Electronics
The drive is electronically controlled by a microprocessor, logic modules, digital/analog modules and various drivers and
receivers. The control electronics perform the following major functions:
• Perform self-checkout (diagnostics)
• Conduct a power-up sequence and calibrate the servo.
• Monitor various timers for head settling, servo failure, etc.
• Analyze servo signals to provide closed-loop control. These include position error signal and estimated velocity.
• Control of the voice coil motor driver to align the actuator onto a desired position
• Monitor the actuator position and determine the target track for a seek operation.
• Constantly monitor error conditions of the servo and take corresponding action if an error occurs.
• Control starting, stopping, and rotating speed of the spindle.
• Control and interpretation of all interface signals between the host controller and the drive
• Control of read/write accessing of the disk media, including defect management and error recovery
3.2 Head Disk Assembly
The head/disk assembly (HDA) is assembled in a clean room environment and contains disks, a spindle motor, actuator assembly, and voice coil motor. Air is constantly circulated and filtered when the drive is operational. Venting of the HDA is accomplished via a breather filter.
The spindle is driven directly by a brushless, sensorless DC drive motor. Dynamic braking is used to stop the spindle quickly.
3.3 Actuator
The read/write heads are mounted in the actuator. The actuator is a swing-arm assembly driven by a voice coil motor. A
closed-loop positioning servo controls the movement of the actuator. An embedded servo data pattern supplies feedback to the
positioning servo to keep the read/write heads centered over the desired track.
The actuator assembly is balanced to allow vertical or horizontal mounting without adjustment.
Heads are moved out from the disks (unloaded) to protect the disk data during shipping, moving, or storage. At power down,
the heads are automatically unloaded from over the disk area and the head actuator locking mechanism will secure the heads in
the unload position.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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4.0 Drive characteristics
4.1 Formatted capacity
Table 1: Formatted capacity
DescriptionHUS151414VL3800
HUS151414VL3600
Label capacity 147 GB73 GB36 GB
Number of heads1053
Number of disks532
Total data bytes (512
bytes/sector)
Total logical data
blocks
147,015,821,82473,407,900,16036,703,949,824
287,140,277
(111D69B5h)
HUS151473VL3800
HUS151473VL3600
143,374,805
(88BB9D5h)
HUS151436VL3800
HUS151436VL3600
71,687,402
(445DCEAh)
4.2 Data sheet
Table 2: Data sheet
Buffer to/from media760 - 1129 Mb/sec
Host to/from buffer (interface transfer rate)320 [MB/sec]
Data buffer size16MB
Number of buffer segments1 - 256
Rotational speed 15,000 RPM
Recording density686 [Kbpi] (Max)
Track density 90,000 [TPI] (average)
Areal density 61.7 [Gb/sq. in]
Data zone24 for 147GB and 73GB, 20 for 36GB
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
7
4.3 Inquiry information
4.3.1 Product ID
Product ID in section 17.5.1.1, "Inquiry Data format - CmdDt = 0, EVPD = 0, Page code = 0" on page 76. is as follows:
Note (1) - Additional block assignment will be issued as needed based on actual production volume
(1)
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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4.4 Cylinder allocation
Table 5: Cylinder allocation
4.5 Performance characteristics
Drive performance is characterized by the following parameters:
•Command overhead
•Mechanical head positioning
- Seek time
- Latency
•Data transfer speed
•Buffering operation (read ahead/write cache)
Note: All the above parameters contribute to drive performance. There are other parameters that contribute to the performance of the actual system. This specification tries to define the bare drive characteristics, not system throughput, which
depends on the system and the application.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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4.5.1 Mechanical positioning
4.5.1.1 Average seek time (including settling)
Table 6: Mechanical positioning performance
ModelCommandTypical (ms)Max
147 GBRead3.73.9
Write4.14.3
73 GBRead3.63.8
Write4.04.1
36 GBRead3.33.5
Write3.73.8
“Typical” and “Max” are used throughout this document and are defined as follows:
Typical Average of the drive population tested at nominal environmental and voltage conditions.
Max Maximum value measured on any one drive over the full range of the environmental and voltage conditions.
(See Section 8.0, “Environment” on page 31 and Section 9.0, “DC power requirements” on page 35 for
ranges.)
The seek time is measured from the start of the actuator’s motion to the start of a reliable read or write operation. “Reliable
read or write” implies that error correction or recovery is not used to correct arrival problems. The average seek time is measured as the weighted average of all possible seek combinations.
max= Maximum seek le ngth
n= Seek length (1 to max)
Tn.in= Inward measured seek time for an n track seek
Tn.out = Outward measured seek time for an n track seek
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
The period from power off to complete stop of spindle is categorized as operating and the Operating shock criteria are
applied until complete stop of spindle. Refer to Section 12.3, “Operating shock” on page 54.
4.5.4 Data transfer speed
Table 11: Data transfer speed (sector size 512 Byte case)
•Instantaneous disk-buffer transfer rate is derived by: (Number of sectors on a track) x 512 x (revolutions/sec)
ZoneModelReadWrite
073 GB93.393
036 GB93.393
1973 GB68.568.5
1936 GB68.568.5
2373 GB62.362.3
2336 GB----
Typical (MB / Sec)
•For this table, '1 MB / Sec' should be interpreted as 1,000,000 bytes per Second.
•The number of sectors per track will vary because of the linear density recording.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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•Sustained disk-buffer transfer rate is the average rate measured while transferring multiple cylinders of data. It differs from the instantaneous transfer rate because of the time required to change tracks (Cylinder skew and Head
skew). In addition, time is added for the occasional missed transfer.
The above table gives the time required to read / write for a total of 32,768 consecutive blocks ( 16,777,216 bytes) accessed by
128 READ /WRITE commands. Typical and Max values are given by 100 % and 110% of T respectively, throughout the following performance description.
Note: It is assumed that a host system responds instantaneously.
T = A + B + C + 16,777,216/D
Where:
T = Calculated time
A = Command overhead (no cache hit)
B = Average seek time
C = Average latency
D = Sustained disk-buffer transfer rate
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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4.5.6.2 Random access
Table 13: Random access performance (sector size 512 Byte case)
OperationTypical (sec)Maximum (sec)
Random read24.724.8
Random write26.326.4
The above table gives the time required to execute a total of 4096 single block READ / WRITE commands which
access a random LBA in unqueued mode.
An approximation for the time is:
T = (A + B + C) * 4096
Where:
T = Calculated time
A = Command overhead (no cache hit)
B = Average seek time
C = Average latency
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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5.0 Data Integrity
The drive retains recorded information under all non-write operations.
No more than one sector can be lost by power down during a write operation while write cache is disabled. If power down
occurs before completion of a data transfer from write cache to disk while write cache is enabled, the data remaining in the
write cache will be lost. To prevent this data loss at power off, the following action is recommended:
•Confirm successful completion of a SYNCHRONIZE CACHE (35h) command
5.1 Equipment Status
Equipment status is available to the host system any time the drive is not ready to READ, WRITE or SEEK. This status normally exists at power-on time and will be maintained until the following conditions are satisfied:
•Access recalibration/tuning is complete
•Spindle speed meets requirements for reliable operations
•Self-check of drive is complete
Appropriate error status is made available to the host system if any of the following conditions occur after the drive has
become ready:
•Spindle speed goes outside of requirements for reliable operation
•“Write fault” is detected
5.2 Error Recovery Procedure
Errors occurring with the drive are handled by the error recovery procedure.
Errors that are uncorrectable after application of the error recovery procedures are reported to the host system as non-recover-
able errors.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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6.0 Physical format
Media defects are remapped to the next available sector during the Format Process in manufacturing. The mapping from Logical Block Address (LBA) to the physical Block location is calculated using internally maintained tables.
6.1 Shipped format (Plist)
•Data areas are optimally used.
•No extra sector is wasted as a spare throughout user data areas.
•All pushes generated by defects are absorbed by spare tracks of the inner zone.
Plist physical format
Figure 1 : Plist physical format
Note: Defects are skipped without any constraint, such as track or cylinder boundary. The calculation from LBA to physical
is done automatically by internal table.
6.2 Reassigned format (Glist)
•Glist is prepared for 5000 LBAs.
•Multiple reassignment of the same LBA does not increase the number of Glist entries.
•A cylinder for spare sectors is prepared every 512 physical cylinders.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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7.0 Electrical interface specification
7.1 Power connector
The power connector of 68-pin models complies with the SFF-8009 Rev. 2.0. Power pin assignment of 68-pin models is as
shown below.
PinVoltage
4 3 2 1
80-pin SCA-2 models use a Molex p/n 87641-0021 or DDK p/n HD2PF80-A11 connector, and 68 pin models use DDK p/n
HDW-RB68124G connector, which is compatible with the specification of “Single Attachment for Small SCSI Disk Drives”
SPI-4 document, Annex C.
Power pin assignment of the 80-pin (SCA-2) model is shown in Section 7.2.2, “SCSI signal connector (80-pin SCA-2 model)”
on page 23.
1+12 V
2GND
3GND
4+5V
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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7.2 SCSI bus connector
The Hitachi Ultrastar 15K147 has 68-pin models and 80-pin SCA-2 models.
7.2.1 SCSI signal connector (68-pin model)
The pin assignments of the interface signals conform to SPI-4 as shown in the table below.
Mated 2
5V Ground
5V Ground
ACTIVE LED OUT
DELAYED START
SCSI ID (1)
SCSI ID (3)
Note:*1 HVD is not supported
Note:SCA-2 connector is not mechanically compatible with the 68-pin “P” connector as defined in the ANSI SCSI stan-
dard. The connector is intended for direct back plane attachment and is not intended to be cable attached to the bus.
Eight-bit devices that connect to the SCA-2 connector should have the following signals inactive (high): -DB(8), -DB(9), -
DB(10), -DB(11), -DB(12), -DB(13), -DB(14), -DB(15), -DB(P1). All other signals shall be connected as defined.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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7.3 SCSI cable
Refer to ANSI SPI-4.
7.4 SCSI bus terminator
Onboard SCSI active termination feature is not supported. The using system is responsible for making sure that all required
signals are terminated at both ends of the bus cable.
Terminator power
T ermination power can be provided by drive 5V supply through current limiter and Schottky diode. This function can be
selected by jumper.
The 80-pin SCA-2 models do not support SCSI termination power.
7.5 Hot plug/unplug
The term “hot plug” refers to the action of mechanically engaging a device to the power and/or bus when other devices may be
active on the same bus. A comprehensive classification of the state of the SCSI bus during this event is located in the SCSI-3
Parallel Interface Standard.
While every effort was made to design the drive not to influence the SCSI bus during these events, it is the responsibility of the
system to ensure voltage regulation and conformance to operational and non-operational shock limits. During hot plug events
the non-operational shock levels should not be exceeded. The operational shock levels of adjacent drives should also not be
exceeded. The recommended procedure is to prohibit write operations to adjacent drives during hot plug and unplug actions.
During hot unplug the operational shock limit specifications should not be exceeded. If this cannot be guaranteed, the drive
should be issued a SCSI STOP UNIT command that is allowed to complete before unplugging. The basic requirement is that
while the drive is operational or spinning down the operational shock limits are in effect. When the drive has completely
stopped, the non-operational shock limits are in effect. The recommended procedure is to allow the unplugged drive to rest in
the drive bay for a minimum of 15 seconds and then complete the removal. During hot plug or u nplug events th e power su pply
ripple on adjacent operational drives should not be outside the ±5% regulation tolerance. It is recommended that the system
have current limiter for in-rush current as described in ANSI SPI-4.
Hot plugging/unplugging the 68-pin model drive to the power supply or to a SCSI bus connector is not allowed since provisions are not available to determine which electrical contact is made first. It may cause glitches on the system SCSI bus and/or
electrical over stress that may result in permanent damage of electrical components of the drive. It is the responsibility of the
system to protect the drive from these situations when the 68-pin model is connected to the power supply of the SCSI bus.
7.6 SCSI bus electrical characteristics
Refer to ANSI SPI-4 for bus electrical characteristics.
Note:If the drive is connected to an HVD bus, the drive I/O will be permanently damaged.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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7.7 Auxiliary connector on 68-pin model
(
)
In addition to the Option Jumper Block, the 68-pin models have an Auxiliary Connector between the power connector and the
68-pin SCSI connector. The settings at the Option Jumper Block and the Auxiliary Connector work as a logical OR. The drive
conforms to SFF-8009, Rev 2.0.
•Pin numbers 1, 3, 5, and 7 specify SCSI-ID as 1D0, 1D1, 1D2, 1D3.
•Pin numbers 2, 4, 6, and 12 are reserved and should be open.
•Pin #8 is for external LED cathode.
+5V
34
68
(Reserved)
1
35
NC
911
12 10 8 6 4 2
Bit 3
Bit 2
SCSI ID
Bit 1
Bit 0
1357
(Reserved)
Ground
LED cathode
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
(Reserved)
Reserved
25
7.8 Option jumper block
As shown in the figure below, the 80 pin SCA-2 card has a single jumper block ( J6). The 68 pin card contains two jumper
blocks (J4 and J6).
J4 and J6 have 14 positions numbered #1 - #14.
As described in Section 7.7, “Auxiliary connector on 68-pin model” on page 33, some of the jumper pins on J4 of the 68-pin
models can also be controlled through the Auxiliary Connector. These controls work as logical OR between the Option Jumper
Block and the Auxiliary Connector.
As described in Section 7.2.2, “SCSI signal connector (80-pin SCA-2 model)” on page 31, some of the jumper pins on J6 of
the 80-pin models can also be controlled through the 80-pin SCA-2 connector. These controls work as a logical OR between
the Option Jumper Block and the SCA-2 connector.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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7.9 Jumper signal Description on 80 pin Jumper Block
7.9.1 Disable Auto Spin (position 1-2)
If a jumper is not installed, the drive will spin up automatically after the power on reset. If a jumper is installed, the
drive will not spin up unless a START UNIT command is received.
7.9.2 Auto Spin Delay and Delay Spin 12 / 6 (position 3-4)
These pins control when and how the drive spins up with the combination of Position #1-2 on J6. When both Auto Spin up and
Auto Start Delay are enabled, the drive start will be delayed by a period of time multiplied by its own SCSI address. If Auto
Spin up is disabled, these jumpers will be ignored. Placing a jumper on delay start 12 / 6 results in a start up delay of 12 seconds time the SCSI ID.
Note: In the table below, “on” means a jumper is installed and “off” means that a jumper is not installed.
Table 16: Auto start delay & delay start 6/12 drive behavior
Model
68p/ SCA
Auto Spin
Jumper SettingsResponse
Disable
OFF
OFF
OFF
OFFON
ON
ONOFF
ON
ON
Auto Spin
Delay
OFFOFF
OFFONYES
ONOFFYES
OFFOFF
ONOFFNO
ONONNO
Dly 12 /6 Auto
Start ?
YES0
ONYES
NO-
ONNO
Delay Multiplier
0
6
12
-
-
-
7.9.3 Force Single Ended Mode (position 7-8)
If a jumper is installed, the drive functions as a single-ended mode drive.
7.9.4 Reserved (position 9-10)
No connection should be made.
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7.9.5 LED Driver Out (position 11-12)
The LED pins are used to drive an external Light Emitting Diode. Up to 30 mA of sink current capability is provided. The
LED Anode must be tied to the current limited +5V source provided at the Location #11 on J6 jumper block.
The LED Cathode is then connected to pin #12 on J6 jumper block to complete the circuit.
7.9.6 Positions #13-14
No connection should be made.
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7.10 Jumper signal Description on 68 pin Jumper Block
7.10.1 LED Driver Out (position 1-2)
The LED pins are used to drive an external Light Emitting Diode. Up to 30 mA of sink current capability is provided. The
LED Anode must be tied to the current limited +5V source provided on pin 1 on J4 jumper block.
The LED Cathode is then connected to the pin 2 on J4 jumper block to complete the circuit.
+5V
68 pin
150 Ohms
Position #1 , 2 on J-4 Jumper Block
(pin 1 of J-4 ) to LED Anode
(pin 2 of J-4 ) to LED Cathode
150 Ohms
7.10.2 Enable Termination Power (positions 3-4)
If a jumper is installed, termination power is supplied to pins 17, 18, 51, and 52 of the 68-pin SCSI interface.
7.10.3 Force Single Ended Mode (position 5-6)
If a jumper is installed, the drive functions as a single-ended mode drive.
7.10.4 Positions #7-8 to #13-14: Device ID
These four lines define the device ID on the SCSI BUS. ID 0 is the least significant bit and ID 3 is the most significan t bit .
Device ID is defined in the table below. In the table, "on" means a jumper is installed and "off" means that no jumper isinstalled.
Table 17: SCSI Device ID
ID 3ID 2ID 1ID 0Device ID
OFFOFFOFFOFF0
OFFOFFOFFON1
OFFOFFONOFF2
OFFOFFONON3
OFFONOFFOFF4
OFFONOFFON5
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
7.11 Jumper Signal Description on 68 pin Jumper Block (J6)
7.11.1 Disable Auto Spin (position 1-2)
If a jumper is not installed, the drive will spin up automatically after the power on reset. If a jumper is installed, the
drive will not spin up unless a START UNIT command is received.
7.11.2 Auto Spin Delay and Delay Spin 12 / 6 (position 3-4 and 5-6)
7.11.3 Disable Parity (position 7-8)
Installing a jumper disables SCSI parity checking.
7.11.4 Disable Unit Attention (position 11-12)
Installing a jumper enables control of UAI (Unit Attention Inhibit) bit in Mode Page 0.
7.11.5 Reserved (positions 9-10 and 13-14)
No connection should be made.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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8.0 Environment
8.1 Temperature and humidity
Table 18: Operating and non-operating conditions
Operating conditions
T emperature5°C to 55ºC (see note)
Relative humidity5 to 90%, non-condensing
Maximum wet bulb temperature29.4ºC, non-condensing
Maximum temperature gradient20ºC/hour
Altitude-300 to 3,048 m
Shipping conditions
Temperature-40°C to70ºC
Relative humidity5 to 95%, non-condensing
Maximum wet bulb temperature35ºC, non-condensing
Maximum temperature gradient30ºC/hour
Altitude-300 to 12,000 m
Storage conditions
Temperature0°C to 65ºC
Relative humidity5 to 90%, non-condensing
Maximum wet bulb temperature35ºC, non-condensing
Altitude-300 to 12,000 m
Note: The system must supply sufficient ventilation to maintain a surface temperature below 60ºC at the center of the drive
top cover. Non-condensing conditions should be maintained at all times. Maximum storage period within shipping package is
one year.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
31
100
90
80
31'C/90%
36'C/95%
WetBuib=35.0'C
70
60
50
40
Relative Humidity (%)
30
20
10
0
-45-35-25-15-5 5 152535455565
Non-operating
Operating
Temper ature ('C)
WetBuib=29.4'C
65'C/14%
55'C/15%
8.2 Storage requirements
8.2.1 Packaging
The drive or option kit must be heat-sealed in a moisture barrier bag with dessiccant inside the bag supplied by Hitachi Global
Storage Technologies.
8.2.2 Storage time
Cumulative storage time in the package must not exceed one year. If a longer storage time is required, the drive must be
repackaged with new desiccant or moved to a climatically controlled environment.
After the drive is unpackaged, it must not remain inoperative for longer than six months.
8.3 Corrosion test
The hard disk drive shows no signs of corrosion inside or outside of the hard disk assembly and remains functional after being
exposed to a temperature of 50ºC and relative humidity of 90% for seven days.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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8.4 Cooling requirements
Drive component temperatures must remain within the limits specified in the following table. Maximum component temperature ratings must not be exceeded under any operating condition. The drive may require forced air cooling to meet specified
operating temperatures.
Table 19: Maximum allowable module surface temperatures
Module nameLocationMaximum allowable surface temperature
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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9.0 DC power requirements
The following voltage specification applies at the drive power connector. Connections to the drive should be made in a safety
extra low voltage (SELV) circuit. Th ere is no power off sequencing requirement.
The power on sequencing requirement is as follows:
If 5V is turned on before 12V, then the sequence delay must be less than 2 seconds.
If 12V is turned on before 5V, there is no time limit.
Failure to power on sequence correctly will prevent motor spin up.
Adequate secondary over-current protection is the responsibility of the system. A 10 A limit is required for safety purposes.
Random Peak AC2201.412.15---Peak 2KB Qd = 4
Random W/R(DC) 2200.700.8013.15Avg, 2KB Qd = 4
IOPS1500.670.6511.81Avg, 2KB, Qd=1
1200.640.6511.08
900.620.6010.36
600.600.559.63
300.570.508.90
9.2 Ripple voltage
Table 26: Power supply generated ripple at drive power connector
Maximum (mV pp)MHz
+5 V DC250 0-10
+12 V DC2500-10
During drive start up and seek, 12 volt ripple is generated by the drive (referred to as dynamic loading). If the power of several
drives is daisy chained, the power supply ripple plus other drive dynamic loading must remain within the regulation tolerance
of +5%. A common supply with separate power leads to each drive is a more desirable method of power distribution.
To prevent external electrical noise from interfering with the drive's performance, the drive must be held by four screws in a
user system frame that has no electrical level difference at the four screw positions. The drive enclosure must not be used in
the current return path of the drive power supply. The maximum common-mode noise current passing through the drive must
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
38
not exceed 20 mA.
9.3 Power consumption efficiency index
Table 27: Power consumption efficiency index
Model147GB model 73GB model36GB model
Power consumption efficiency index (W/GB)0.080.120.23
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
39
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
40
10.0 Reliability
10.1 Start/stop cycles
The drive is designed to withstand a minimum of 50,000 start/stop cycles at ambient environment.
The drive is designed to withstand a minimum of 10,000 start/stop cycles at the operating environment conditions specified in
"Enviornment" on page 36.
10.2 Data reliability
The probability of an uncorrectable data error is 10 in 1x1016 bits read.
The following ECC On-The-Fly (OTF) correction is implemented:
•1 symbol = 8 bits
•3 interleaves
•18 symbols, 6 symbols per each interleave, for OTF correction This implementation always recovers 18 random burst
errors and a 144 bit continuous burst error.
10.3 Seek errors
A non-recoverable seek/ID miscompare error is defined as a seek operation that cannot be recovered by the error recovery procedure of the drive. The drive reports sense key 04 and sense code 02 for this error.
No drive has more than one non-recoverable seek/ID miscompare error per 100 million seek operations (1 in 1x 10
operated at the full range of voltage and environmental conditions.
8
) when
10.4 Failure prediction (PFA/S.M.A.R.T)
A recoverable equipment error is an error other than a seek/ID miscompare error or read error that is detected and corrected by
the drive error recovery procedure. Examples are Write Fault, Drive Not Ready and internal drive errors.
No drive has more than one recoverable equipment error per 10
at the full range of voltage and environmental conditions.
Non-recoverable equipment errors indicate a defective drive.
8
READ, 108 WRITE, or 106 SEEK operations when operated
10.5 Preventive maintenance
None.
10.6 Temperature warning
Temperature warning is enabled by setting the EWASC (Enable Warning additional sense code) bit to 1 and setting DEXCPT
(Disable Exception Control) bit to 0 in Mode Page 1C. For mode page settings, refer to Section 17.11.13, “Mode page 1C
(Informational exceptions control)” on page 1 52. Th e w arning is is sued as sense data (Sense Key 01h, Code 0Bh, Qual 01h).
The drive temperature is reported in Log Sense page 2F. Refer to Section 17.7.11, “Log Sense page 2F” on page 111.
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11.0 Mechanical specifications
11.1 Outline
11.1.0.1 68-pin connector model
11.1.0.2 80-pin connector model
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
147 GB model 758 grams
73 GB model 741 grams
36 GB model 736 grams
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
44
11.3 Interface connector
11.3.1 68 and 80 pin connectors
11.3.1.1 Interface connector for 68-pin models
11.3.1.2 Interface connector for 80-pin models
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11.4 Mounting positions and tappings
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46
11.4.0.1 Mounting positions and tappings
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47
11.5 Drive mounting
The drive will operate in all axes (six directions). Performance and error rate will stay within specification limits if the drive is
operated in the other orientations from which it was formatted.
The recommended mounting screw torque is 0.6 - 1.0 Nm (6 - 10 Kgf.cm). The recommended mounting screw depth is 4 mm
maximum for bottom and 4.5 mm maximum for horizontal mounting.
T o avoid performance degradation, mount the drive in the system securely enough to prevent excessive motion or vibration of
the drive at seek operation or spindle rotation, using appropriate screws or equivalent mounting hardware. Consult with the
issuer of this specification for actual application if necessary.
Drive level vibration tests and shock tests are to be conducted with the drive mounted to a table using the bottom four screws.
11.6 Heads unload and actuator lock
Heads are moved out from the disks (unload) to protect the disk data during shipping, moving, or storage. At power down, the
heads are automatically unloaded from over the disk area and the head actuator locking mechanism will secure the heads in the
unload position.
11.7 Breather hole
The breather hole must be kept clear and unobstructed at all times. Do not cover the breather hole.
11.7.0.1 Breather hole location
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12.0 Vibration and shock
All vibration and shock measurements in this section are made with a drive that has no mounting attachments for the systems.
The input power for the measurements is applied to the normal drive mounting points.
12.1 Operating vibration
12.1.1 Random vibration
The drive is designed to operate without unrecoverable errors while being subjected to the vibration levels defined below.
The assessments are carried out during 30 minutes of random vibration using the power spectral density (PSD) levels as fol-
lows.
No Errors:0.4 G RMS, 5-500 Hz, flat PSD profile for each of the three mutually perpendicular axes.
No Data Loss: 1.2 G RMS, 5-500 Hz, flat PSD profile for each of the three mutually perpendicular axes.
Note:The specified levels are measured at the mounting points.
12.1.2 Swept sine vibration
The drive will meet the criterion while operating in the respective conditions as described below.
No errors: 0.5 G 0-peak, 5-400-5 Hz sine wave, 0.5 octave/minute sweep rate
No data loss:0.75 G 0-peak, 5-400-5 Hz sine wave, 0.5 octave/minute sweep rate
1.0 G 0-peak, 5-300-5 Hz sine wave, 0.5 octave/minute sweep rate
12.2 Non-operating vibration
The drive will not sustain permanent damage or loss of recorded data after being subjected to the environments as described
below.
12.2.1 Random vibration
The test consists of a random vibration applied for each of the three mutually perpendicular axes at a time duration of ten minutes per axis:
1.04 G RMS, 5-500 Hz, flat PSD profile
12.2.2 Swept sine vibration
The test consists of a swept sine vibration applied for each of the three mutually perpendicular axes.
2.0G 0-peak, 5-500-5 Hz sine wave, 0.5 octave/minute sweep rate
12.3 Operating shock
The drive will meet the criterion while operating in the respective conditions as described below.
No data loss: 15G, 11 ms duration, half sinewave shock pulse
No data loss: 30G, 2 ms duration, half sinewave shock pulse
The shock pulses of each level are applied to the drive, ten pulses for each direction and for all three mutually perpendicular
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
49
axes. There must be a minimum of 30 seconds delay between shock pulses. The input level is applied to a base plate where
the drive is attached using four mounting screws.
12.4 Non-operating shock
The drive will not sustain permanent damage or loss of recorded data after being subjected to the environments as described
below.
12.4.1 Half sinewave shock pulse
80 G, 11 ms duration, half sinewave pulse
250 G, 2 ms duration, half sinewave pulse
The shocks are applied in each direction of the drive for the three mutually perpendicular axes, one axis at a time. The input
level is applied to a base plate where the drive is attached using four mounting screws.
12.4.2 Rotational shock
30,000 radians/second2, 1 ms duration
20,000 radians/second
The shock input is applied around the axis of the actuator pivot. The shock input does not displace the heads from the actuator
latched position.
2
, 2 ms duration
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
50
13.0 Acoustics
13.1 Sound power levels
The upper limit criteria of A-weighted sound power levels are given in Bel, relative to one pico watt, and are shown in the
following table. The measurement method is in accordance with ISO-7779.
Table 29: A-weighted sound power levels
A-weighted sound power level (Bel)
ModelMode
TypicalMaximum
Idle3.53.8
147 GB
73 GBIdle3.53.8
36 GBIdle3.53.8
Background power levels of the acoustic test chamber for each octave band are to be recorded. Sound power levels are measured with the drive supported by spacers so that the lower surface of the drive is located 25 ± 3 mm height from the chamber
desk.
No sound-absorbing material shall be used. The acoustical characteristics of the drive subsystem are measured under the
following conditions:
Operating4.65.0
Operating4.65.0
Operating4.65.0
Idle Mode:
Powered on, disks spinning, track following, unit ready to receive and respond to host commands except every 40 seconds when
the idle time function incrementally sweeps the disk surface.
Operating Mode:
Continuous random cylinder selection and seek operation of the actuator with dwell time at each cylinder. Seek rate for the drive
is calculated per the formula below:
Ns =average seek rate in seeks/sec where:
Ns = 0.4 / (Tt + Tl)
Tt = published random seek time
Tl = time for the drive to rotate by half a revolution
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14.0 Identification
14.1 Labels
The following labels are affixed to every hard disk drive shipped from the drive manufacturing location in accordance with
appropriate hard disk drive assembly drawing:
•A label containing Hitachi logo, Hitachi part number, and the statement “Made by Hitachi”, or Hitachi approved
equivalent.
•A label containing drive model number, manufacturing date, formatted capacity, country of origin or Hitachi
approved equivalent, and UL, CSA, TUV, CE, and CTICK logos.
•A bar code label containing the drive serial number.
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54
15.0 Standards
The following shows the safety standards for different countries.
15.1 UL and CSA standard conformity
The drive is qualified per ULIEC 60950-1: 2001, First Edition for use in Information Technology Equipment, including Electric Business Equipment. The UL recognition, or the CSA certification, is maintained for the product life. The UL and C-UL
recognition mark, or CSA monogram for CSA certification, appears on the drive.
15.2 European standards compliance
The product is certified to EN60950.
15.3 German safety mark
The product is approved by the TUV and will carry the applicable Bauart mark on the label.
15.4 Flammability
The printed circuit boards used in this drive are made of material with a UL recognized flammability rating of V-1 or better.
The flammability rating is marked or etched on the board. All other parts not considered electrical components are made of
material with a UL recognized flammability rating of V-1 or better.
15.5 Corporate Standards Compliance
This product has been designed to meet the following Corporate Standards:
- NB 3-0501-201 Product Safety, National Requirements-All Countries.
- CS 3-0501-070 Electrical, Mechanical and Flammability
- NB 3-0501-033 Product Safety National Certification Conformity Requirement
- CS 1-9700-020 Eco-Product Design Requirement
Hitachi GST encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is
no longer needed. Hitachi GST offers a variety of programs and services to assist equipment owners in recycling their IT
products.
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16.0 Electromagnetic Compatibility
The drive, when installed in a suitable enclosure and exercised with a random accessing routine at a maximum data rate will
comply with the worldwide EMC requirements listed below.
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17.0 SCSI Command Set
Summaries of the SCSI commands supported by the drive are listed below. O = optional, M = mandatory
Table 30: SCSI Commands Supported
Type Code Description
M 04h FORMAT UNIT (04), page 62
M 12h INQUIRY (12), page 68
O 4Ch LOG SELECT (4C), page 78
O 4Dh LOG SENSE (4D), page 81
O 15h MODE SELECT (15), page 103
O 55h MODE SELECT (55), page 104
O 1Ah MODE SENSE (1A), page 105
O 5Ah MODE SENSE (5A), page 141
O5EhPERSISTENT RESERVE IN (5E), page 143
O5FhPERSISTENT RESERVE OUT (5F), page 147
O 34h PRE-FETCH (34), page 155
M 08h READ (6) - (08), page 156
M 28h READ (10) - (28), page 157
O 3Ch READ BUFFER (3C), page 158
M 25h READ CAPACITY (25), page 162
O 37h READ DEFECT DATA (37), page 164
OB7hREAD DEFECT DATA (B7), page 168
O 3Eh READ LONG (3E), page 170
O 07h REASSIGN BLOCKS (07), page 171
O 1Ch RECEIVE DIAGNOSTICS RESULTS (1C), page 173
M 17h RELEASE (17), page 175
O 57h RELEASE (57), page 176
OA3h/05hREPORT DEVICE IDENTIFIER (A3), page 177
OA0hREPORT LUNS (A0), page 179
M 03h REQUEST SENSE (03), page 180
M 16h RESERVE (16), page 181
O 56h RESERVE (56), page 182
O 01h REZERO UNIT (01), page 183
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Type Code Description
O 0Bh SEEK (6) - (0B), page 184
O 2Bh SEEK (10) - (2B), page 185
M 1Dh SEND DIAGNOSTIC (1D), page 186
OA4h/06hSET DEVICE IDENTIFIER (A4), page 190
O 1Bh START STOP UNIT (1B), page 191
O 35h SYNCHRONIZE CACHE (35), page 192
M 00h TEST UNIT READY (00), page 193
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17.1 SCSI Control Byte
The Control Byte is the last byte of every CDB. The format of this byte is shown below.
Table 31: SCSI Control Byte
BIT
7
VU = 0
VU
VU stands for Vendor Unique.
NACA
NACA stands for Normal Auto-Contingent Allegiance. This bit determines the rules for handling an ACA condition
that is caused by this command.
FLAG
If Link is zero, Flag must also be zero. If Link is one, Flag may also be one. Typically this bit is used to cause an
interrupt in the Initiator between linked commands.
LINK
This bit is set to one to indicate that the Initiator desires an automatic link to the next command upon successful com-
pletion of the current command.
Note: Linked commands are not supported and Check condition ’Illegal Request Invalid field in CDB’ will be returned if
LINK bit is set.
6 5 4 3 2 1 0
Reserved = 0
NACA
FLAGLINK
17.2 Abbreviations
These abbreviations are used throughout the following sections:
LUNLogical Unit Number. An encoded three bit identifier for the logical unit.
VUVendor Uniq ue bits.
LBALogical Block Address.
RSVD Reserved.
MSBMost Significant byte.
LSBLeast Significant byte.
17.3 Byte ordering conventions
In this specification, where it is not explicitly stated, all multi-byte values are stored with the most significant byte first. For
example, in a 4 byte field, byte 0 will contain the MSB and byte 3 the LSB.
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17.4 FORMAT UNIT (04)
Table 32: FORMAT UNIT (04)
ByteBIT
76543210
0Command Code = 04h
1Reserved = 0 FmtData CmpLst Defect List Format
2VU = 0
3
4
5VU = 0 Reserved = 0 FLAG LINK
The FORMAT command performs a physical formatting of the drive media. This includes handling of defective sectors and
the overwriting of all data areas with a constant data pattern. (Reserved areas of the media are not affected by the FORMAT
command.)
• FmtData set to one specifies that a Data Out phase follows the Command phase. The Data Out phase consists of a defect
list header followed by zero or more defect descriptors, the Glist. FmtData set to zero specifies that no Data Out
phase follows. If no Defect List Header is supplied, the following defaults are assumed: DPRY=0, DCRT=1,
STPF=1, IP=0, DSP=0, Immed=0.
• CmpLst
• - set to one specifies that the Grown Defect List (GList) existing prior to the issuance of the Format Unit command
be discarded. If provided, the DList then becomes the GList. Following these operations, the Drive will be formatted
with the PList and GList.
• - set to zero specifies that the GList existing prior to the issuance of the Format Unit command is retained. If provided, the DList is combined with the GList to become the new GList. Following these operations, the Drive will be
formatted with the PList and GList.
Note: The drive manages two internal defect lists and one external. The Plist is created at time of manufacture. The Glist is
built after manufacture by the Initiators’ use of the REASSIGN BLOCK command and the Automatic Reallocate functions.
The Dlist is an external list. It is supplied by the Initiator in the Data Out phase of the FORMAT UNIT command.
• Defect List Format specifies the format of the defect descriptor transferred to the Target when FmtData bit is set to one.
The Target supports the following three defect descriptor formats for the FORMAT UNIT command:
(MSB) Interleave Factor
(LSB)
Format Description
000b Block format
100bBytes From Index format
101b Physical Sector format
If the FmtData bit is set to zero, this field must also be zero. Otherwise the command will complete with a CHECK
CONDITION with a sense key of Illegal Request and an additional sense code of Invalid Field in CDB.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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Notes: It is recommended that the MODE SELECT command be issued prior to the FORMAT UNIT command to
specify parameters that affect the formatting process.
The Block Length parameter of the Mode Select Parameter List’s Block Descriptor is used during formatting and is
saved following a successful format operation. If a MODE SELECT command has not been issued since the last reset
or start-up (bring-up) sequence, then the Block Length from the previous format operation is used.
Subsequent to receiving a FORMAT UNIT command, the Target responds to commands as follows:
- All commands except REQUEST SENSE and INQUIRY return Check Condition status, while the format operation
is an active I/O process.
- When tagged queuing is enabled (DQue = 0), all commands except REQUEST SENSE and INQUIRY return
Queue Full status, while the FORMAT UNIT command is a queued I/O process.
- When tagged queuing is disabled (DQue = 1), all commands except REQUEST SENSE and INQUIR Y retu rn Busy
status, while the FORMAT UNIT command is a queued I/O process
- If a REQUEST SENSE command is received while a format operation is an active I/O process, the Target returns
Good status. The sense key is set to Not Ready and the additional sense code and qualifier is set to Format In
Progress.
- If an INQUIRY command is received while a format operation is an active I/O process, the Target returns Good
status and Inquiry data as requested.
The format operation must complete successfully for the Drive to be usable. If the command is interrupted by a reset,
power down, or an unrecoverable error, the Drive enters a degraded mode of operation in which reading and writing
are prohibited. To exit the degraded mode, another FORMAT UNIT command must be sent by the Initiator and completed successfully by the Target.
The FORMAT UNIT command sets the Unit Attention Condition for all Initiators except the one that issued the FORMAT UNIT command.
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17.4.1 Defect list
Following is the format of the Dlist Header sent during the data out phase when FmtData is set to one.
The T arget has a limited implementation of the Format Option bits located in Bits 2 through 7 of Byte 1 in the Dlist Header. If
the Initiator attempts to select any function not implemented by the Target, the Target terminates the command with Check Condition status. The sense key is set to Illegal Request and the additional sense code is set to Invalid Field in Parameter List.
• FOV (Format Options Valid) bit set to zero causes the Target to verify that the setting for the DPRY (Disable Primary),
DCRT (Disable Certification), STPF (Stop Format), IP (Initialize Pattern), and DSP (Disable Saving Parameters) bits
are zero. If any of these bits are not zero, the Target terminates the command with Check Condition status. The sense
key is set to Illegal Request and the additional sense code is set to Invalid Field in Parameter List.
Note: When the FOV bit is one, six combinations of the DPRY, DCRT, STPF, IP and DSP bits are allowed. Any
other combinations return a Check Condition status with a sense key of Illegal Request and an additional
sense code of Invalid Field in Parameter List. The supported combinations are:
• DPRY (Disable Primary) bit set to zero indicates that the Target does not use portions of the medium identified as defec-
tive in the primary defect Plist for Initiator addressable logical blocks. If the Target cannot locate the Plist or it cannot
determine whether a Plist exists, theTarget terminates the FORMAT UNIT command as described for STPF=1. A
DPRY bit set to one indicates that the Target does not use the Plist to identify defective areas of the medium. The Plist
is not deleted.
• DCRT (Disable Certification) bit set to zero indicates that the Target performs a medium certification operation and gen-
erates a Certification List (Clist) and the Target adds the Clist to the Glist. A DCR T bit of one indicates that the Target
does not generate a Clist nor perform a certification process.
Note:Since the DCRT bit is part of the Data Out phase that follows the FORMAT command, the FCERT bit in
Mode Page 0 is provided to control certification when the FORMAT command is issued with no Data Out
phase. If a FORMAT command is issued with a Data Out phase then F CERT is ignored.
• STPF (Stop Format) bit must be set to one. If one or both of the following conditions occurs, the Target terminates the
FORMAT UNIT command with Check Condition status. The sense key is set to Medium Error and the additional
sense code is set to Defect List Not Found if the first condition occurred or to Defect List Error if the second condi-
tion occurred.
• The Target cannot locate a required Dlist nor determine that the list exists.
•The Target encounters an unrecoverable error while accessing a required Dlist.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
64
• IP (Initialization Pattern) bit must be set to zero. The Target initializes all data with zeros.
• DSP (Disable Saving Parameters) bit when zero indicates the target is to save all the current MODE SELECT saveable
parameters during the format operation. When the bit is one, the target is not to save the current MODE SELECT
saveable parameters.
• Immed (Immediate) bit set to zero requests that status be returned at the end of the format operation. An immediate bit
set to one requests that status be returned immediately following CDB validation and transfer of data in the Data Out
phase. If the format operation, with the immediate bit set to one, terminates in error, DEFERRED ERROR SENSE
data is generated.
Note:With the immediate bit set to one, the Link bit must be set to zero. Otherwise, the command is terminated
with Check Condition status, sense key is set to Illegal Request and additional sense code is set to CDB Invalid.
• Defect List Length field specifies the total length in bytes of the defect descriptors that follow. Up to 128 defect descrip-
tors are allowed. The Defect List Length must be equal to four times the number of defect descriptors for BLOCK
format, or eight times the number of defect descriptors for BYTES FROM INDEX and PHYSICAL SECTOR formats. Otherwise the command is terminated with Check Condition status with the sense key set to Illegal Request
and the additional sense code set to Invalid Field in Parameter List.
17.4.2 Defect Descriptor
Three defect descriptor formats are supported. Entries are not required to be in ascending order. If an entry does not correspond to a valid user addressable media location, the command terminates with Check Condition status with the sense key set
to Illegal Request and the additional sense code set to Invalide Field in Parameter List.
17.4.2.1 Block Format - 000b
Format of the Glist sent during the data out phase when Glist Format is Block form at (000b) and FmtData is set to one.
Table 34: Defect Descriptor - Block Format (for n + 1 defects)
ByteBIT
7
(MSB)
0 - 3
4n
4n+1
4n+2
4n+3
The Block format of the Dlist is the LBA of each defective sector.
Note:If a Defective LBA entry, when converted to a physical sector, is equal to the physical sector of a Plist entry and
DPRY = 1, then the entry is not added to the Glist.
(MSB)
6543210
Defective Logical Block Address
(LSB)
Defective Logical Block Address n
(LSB)
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17.4.2.2 Bytes From Index Format - 100b
Format of the Dlist sent during the data out phase when Dlist Format is Bytes From Index format (100b) and FmtData is set to
one.
Table 35: Defect Descriptor - Bytes From Index Format (for n = 1 defects)
BIT
Byte
76543210
(MSB)
0 - 2
3Head Number of Defect
(MSB)
Cylinder Number of Defect
(LSB)
4 - 7
Defect Bytes from Index
(LSB)
8n
8n + 1
8n + 2
(MSB)
Cylinder Number of Defect n
(LSB)
8n + 3Head Number of Defect n
8n + 4
(MSB)
8n + 5
Defect (n) Bytes from Index
8n + 6
(LSB)
8n + 7
Each defect descriptor for the Bytes From Index format specifies that the sector containing this byte be marked defective. The
defect descriptor is comprised of the cylinder number of the defect, the head number of the defect, and the number of the
defect byte relative to index.
Note:If a Byte From Index entry, when converted to a physical sector, is equal to the physical sector of a Plist entry and
DPRY = 1, then the entry is not added to the Glist.
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17.4.2.3 Physical Sector Format - 101b
Format of the Dlist sent during the data out phase when Dlist Format is Physical Sector format (101b) and FmtData is set to
one.
Table 36: Defect Descriptor - Physical Sector Format (for n + 1 defects)
Byte
BIT
76543210
0
1
(MSB)
Cylinder Number of Defect
2
3Head Number of Defect
4
(MSB)
5
Defect Sector Number
6
7
8n
8n + 1
(MSB)
Cylinder Number of Defect n
8n + 2
8n + 3Head Number of Defect n
8n + 4
(MSB)
8n + 5
Defect (n) Sector Number
8n + 6
8n + 7
(LSB)
(LSB)
(LSB)
(LSB)
Each defect descriptor for the Physical Sector format specifies a defective sector. Th e defect desc riptor i s comprised of the cylinder number of the defect, the head number of the defect, and the defect’s sector number.
Note:If a Physical Sector entry, when converted to a physical sector, is equal to the physical sector of a Plist entry and
DPRY = 1, then the entry is not added to the Glist.
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
The INQUIRY command requests the parameters of theTarget to be sent to the initiator.
An EVPD bit of one specifies that the Target return the vital product data page identified by the Page Code field in the CDB.
The Page Code specifies which page of vital product data information the drive shall return.
Table 38: Page Code descriptions
EVPD
0 0 The Target returns the standard INQUIRY data.
0 Non Zero
1Non Zero The drive returns the vital product data of page code requested.
Allocation Length specifies the number of bytes that the Initiator has allocated for INQUIRY data to be returned. An alloca-
tion length of zero implies that no data is to be returned. The Target will terminate the DATA IN phase when all available
INQUIRY data has been transferred or when allocation length bytes have been transferred, whichever is less.
Note:If an INQUIRY command is received from an Initiator with a pending unit attention condition (before the target
reports Check Condition status), the Target processes the INQUIRY command. The unit attention condition is not cleared by
this action.
Note:The INQUIRY command is a Priority command and is not queued.
Note:The inquiry data is set at the time of manufacture and will not change (without a FRU change), with the following
exceptions:
• Product Revision Level (EVPD=0) can be changed when microcode is downloaded with the Write Buffer command.
• The information returned for EVPD=1, Page Code = 3 is not fixed.
Note:The inquiry data returned when media is not available will not be complete.
Byte 0 of the returned data on an INQUIRY command is the same no matter which page(s) is(are) returned. This description is
to be used for all the following page definitions.
The Peripheral Qualifier field of zero (0) indicates that the peripheral device is currently connected to this logical unit. A
Peripheral Device Type field of zero (0) indicates that this device is a Direct Access Storage Device (DASD).
PAGE
CODE
Description
The drive returns Check Condition status with the sense key of Illegal Request
and the additional sense code of Invalid Field in CDB.
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17.5.1 Inquiry Data
Fields with a value shown inside quotes (e.g. Value =’xyz’) are character fields. A value not in quotes is a numeric value.
Character fields are alphanumeric and represented in either ASCII.
17.5.1.1 Inquiry Data Format - EVPD = 0, Page Code = 0
Table 39: Inquiry Data Format - EVPD = 0, Page Code = 0
8-23Reserved = 0
24-35ASCII uCode Identifier
36-39ASCII Servo P/N
40-41Major Version
42-43Minor Version
76543210
44-47User Count
48-51Build Number
52-83Build Date String
84-91Product ID
92-99Interface ID
100-107Code Type
108-119User Name
120-135Machine Name
136-167Directory Name
168-171Operating State
172-175Functional Mode
176-179Degraded Reason
180-183Broken Reason
184-187Code Mode
• Qualifier is set to zero to indicate that the LUN specified in the Command Block is currently supported.
• Peripheral Device Type is set to zero to indicate that the device is Direct Access.
• Page Code is set to the value of the page code field in the CDB.
• Page Length field specifies the length (in bytes) of the vendor unique VPD information (bytes 4 - 163). If the allocation
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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length of the CDB is too small to transfer all the data, the Page Length field is not adjusted to reflect the truncation.
• ASCII uCode Identifier contains the drive’s microcode identifier. The field is alphanumeric (ASCII), left aligned, and
the unused bytes are ASCII spaces (20h).
• ASCII Servo P/N con tains the part number of the Servo microcode installed on the drive. This field is hex numeric
ASCII (i.e., the characters will be in the set 0...9, A...F).
• Major Version and Minor Version are version numbers of the code loaded on the drive.
• User Count is the number of times the code has been built since the master build.
• Build Number is the master build version number.
• Build Date String is the date the code on the drive was built, in an extended string format.
• Product ID is the name of the product this code is for.
• Interface ID is the name of the interface (e.g. SCSI, FCAL) this code is intended.
• Code Type is the inte nded use of the this code. (e.g. local, released, test)
• User Name is the username of the person who built this version of the code.
• Machine Name is the workstation on which this version of the code was built.
• Directory Name is the last 32 characters of the directory from where this code was built.
• Op
erating State is the drive operating state. The least significant bit contains the following:
0 = OM_BROKENWe have detected a hardware failure.
1 = OM_DEGRADEDWe have a soft failure; i.e., incomplete format. Motor is still spinning.
2 = OM_INACCESSIBLEDrive is good but motor is stopped.
3 = OM_STARTINGMotor is starting.
4 = OM_SPINNINGMotor is started but reserved area is not loaded yet.
5 = OM_NORMALDrive is spinning and ready to read/write.
6 = OM_SLEEPDrive is ready but has entered power save mode.
7 = OM_STOPPEDDrive has come ready but now has been stopped.
• Functional Mode is the drive functional mode. The least significant byte (0x0000000n) contains the following:
0 = OM_NORMAL_MODENot in special or recovery mode.
1 = OM_SPECIAL_CMDSpecial command mode on.
3 = OM_SPC_RSV_ACCESSSpecial cmd mode and access to reserved area allowe d.
5 = OM_SPC_SDWNLOADSpecial cmd mode and special download allowed.
7 = OM_SPC _ RACCESS_SDWNLDSpecial cmd, access to reserved area, and special download allowed.
The second byte (0x000n0000) contains the following:
0 = Idle functions are not enabled.
1 = Idle functions are enabled.
• Degraded Reason (UECType) is why the file is in a degraded mode; i.e., how to exit this mode.
• Broken Reason (UECType) is why the drive believes the hardware is broken.
• Code Mode is the type of code the drive is running. The least significant bit contains the following:
0 = OM_FLASHDrive is running flash code.
1 = OM_DISKDrive is running code loaded from disk.
3 = OM_TRANSIENTWe are running downloaded code that isn’t saved.
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17.5.1.4 Inquiry Data Format - EVPD = 1, Page Code - 80h
4-19ASCII Media Disk Definition
20-35ASCII Motor Serial Number
36-51ASCII Flex Assembly Serial Number
52-67ASCII Actuator Serial Number
68-83ASCII Device Enclosure Serial Number
• Qualifier is set to zero to indicate that the LUN specified in the Command Block is currently supported.
• Peripheral Device Type is set to zero to indicate that the device is Direct Access.
• Page Code is set to the value of the page code field in the CDB.
• Page Length is set to 80, and this field specifies the length of the following page data.
Note:If the media is not available, bytes 0 through 3 are valid. All the other fields are ASCII blanks (20h).
Note:All ASCII fields are alphanumeric, left aligned, and padded on the right with ASCII blanks (20h).
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17.5.1.7 Inquiry Data Format - EVPD = 1, Page Code - D2h
• Qualifier is set to zero to indicate that the LUN specified in the Command Block is currently supported.
• Peripheral Device Type is set to zero to indicate that the device is Direct Access.
• Page Code is set to the value of the page code field in the CDB.
• Page Length is set to 32, and this field specifies the length of the following page data.
Note:If the media is not available, bytes 0 through 3 are valid. All the other fields are ASCII blanks (20h).
Note:All ASCII fields are alphanumeric, left aligned, and padded on the right with ASCII blanks (20h).
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
The LOG SELECT command provides a means for the Initiator to clear statistical information maintained by the drive and
reported via the LOG SENSE command.
• PCR The Parameter Code Reset determines whether the Log Sense parameters will be cleared and unit attention posted
for all other Initiators. A value of 1 indicates that the parameters be cleared, while a value of zero (except when PC =
11b) indicates that the parameters not be cleared. Parameter list length must be zero when PCR is 1.
• SP The Save Parameters bit value of zero indicates that the page parameters not be saved. A value of 1 indicates that the
page parameters that are savable be saved after they have been changed. SP bit MUST be 1 if parameter list length is
greater than zero. Otherwise it will result in a Check Condition status being returned. The sense key shall be set to
Illegal Request and additional sense code of Invalid Field in CDB.
• PC The Page Control field defines the type of parameters to be selected. The PC field set to 11b (and PCR is then a don't
care) indicates that the Default Cumulative values are set to their default values of 0. If the PC field is set to 01b and
PCR is set to 1, the Current Cumulative values are also set to their default values of 0.
Parameter List Length MUST be zero when PC = 11b. Otherwise the command is terminated and a Check Condition
status is returned. The sense key shall be set to Illegal Request and additional sense code of Invalid Field in CDB.
• Parameter List Length The Parameter List Length field specifies the length in bytes of the parameter list that shall be
located in the DATA OUT buffer. A parameter list length zero indicates that no pages shall be transferred.
(MSB) Parameter List Length = 0
Reserved = 0
(LSB)
Note:A specified length greater than 0x00FF will result in a Check Condition status being returned. A length that results in
log data being truncated will generate a Check Condition status.
Note:For page 0Fh, the maximum parameter list length supported is 4004h (4 bytes for the header and 100h bytes for each
of the 40h parameters that are supported). The Parameter List Length must be an integral of the number of parameters plus the
4 byte header. (Ex: Parameter length =104h for one parameter, 204h for 2 parameters,... 40 04h for all 40h param e ters).
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The drive allows updates to the current cumulative values only. A value of zero is acceptable and is not considered an error.
The drive updates only pages 0Eh, the Start/Stop Cycle page, and 0Fh, the Application Client page. If the data out buffer contains multiple pages then the application client should send the pages in ascending ord e r. If the data out buffer contains multiple log parameters within a page, they should be sent in ascending order by parameter code value.The drive shall return Check
Condition status if the application client sends pages out of order or parameter codes out of order. The sense key shall be set to
Illegal Request and additional sense code set to Invalid Field in Parameter List.
If one or more fields of the CDB are not set correctly the command will be terminated with a Check Condition status. The
sense key shall be set to Illegal Request and additional sense code of Invalid Field in CDB.
To indicate that parameters have changed, the Target generates a unit attention condition for all Initiators except the one that
issued the LOG SELECT command.
The following list contains all individual page parameters (counters) that are set to their default value of zero by the LOG
SELECT command (when PCR=1).
• Page 02h parameters: (Counters for write errors)
- Write errors recovered without delay
- LBAs with write fault error
- LBAs with ID type error
- Total errors recovered
- Number of times recovery invoked
- Total write byte count
- LBAs with hard error
• Page 03h parameters: (Counters for read errors)
- Read errors recovered without delay
- LBAs with ECC detected error
- LBAs with ID type error
- Total errors recovered
- Number of times recovery invoked
- Total read byte count
- LBAs with hard error.
• Page 05h parameters: (Counters for Verify Errors)
- Errors recovered without delay
- LBAs with ECC detected error
- LBAs with ID type error
- Total errors recovered
- Number of times recovery invoked
- Total bytes verified
- LBAs with hard error.
• Page 06h parameters: (Counters for non medium errors, seek and other hardware type failures)
- Non-Medium Error Counter
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• Page 30h parameters:
- Zero Seeks counter
- Seeks > = to 2/3 counter
- Seeks > = 1/3 and < 2/3 counter
- Seeks > = 1/6 and < 1/3 counter
- Seeks > = 1/12 and < 1/6 counter
- Seeks > 0 and < 1/12 counter
- Overrun Counter
- Under run Counter
- Device Cache Full Read Hits
- Device Cache Partial Read Hits
- Device Cache Write Hits
- Device Cache Fast Writes
- Device Cache Misses on Reads
• Page 37h parameters:
- Media PFA
- Hardware PFA
- Device Cache Read Misses
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
The LOG SENSE command allows the Initiator to retrieve the statistical data regarding the drive.
• PPC (Parameter Pointer Control) bit must be set to zero. This specifies that the drive start transferring data s tarting from
the field specified in the parameter pointer field for the number of bytes specified by the allocation length. If the PPC
bit is set to 1, Check Condition status is returned with a sense key of Illegal Request and additional sense code of
Invalid Field in CDB.
• SP (Save Parameters) bit set to 0 specifies that the drive does not save any log parameters. If it is set to 1, all page param-
eters that are savable (those pages denoted by a DS = 0 in the parameter header control byte) are saved.
• PC (Page Control) field defines the type of parameters to be selected. This field must be set to 01b to specify the current
cumulative values. Any other value in this field will cause the command to end with a Check Condition status with a
sense key of Illegal Request and an additional sense code of Invalid Field in CDB.
• Page Code field identifies which page is being requested. This field must be set to the values indicated in Page 0. If the
Page Code value is invalid a Check Condition status is returned with a sense key of Illegal Request and additional
sense code of Invalid Field in CDB.
• Parameter Pointer Field specifies the beginning field for the transfer. This field is only available for Page Code = 0Fh.
If the parameter pointer field greater than 3Fh for Page Code = 0Fh, or if the field is not zero for Page Code other
than 0Fh, a CHECK CONDITION status is returned with a sense key of ILLEGAL REQUEST and additional sense
code of INVALID FIELD IN CDB.
• Allocation Length field specifies the maximum number of bytes the Initiator has allocated for returned Log Sense Data.
No bytes are transferred if the length is zero. This condition is not considered an error. TheTar get terminates the Data
In phase when all available Log Sense data has been transferred or when the number of bytes equals the allocation
length, whichever is less.
(MSB) Parameter Pointer = 0
(MSB) Allocation Length
Reserved = 0
(LSB)
(LSB)
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17.7.1 Log Page parameters
Each log page begins with a 4-byte page header followed by zero or more variable-length log parameters.
Page header
Page Code field identifies which log page is being transferred.
The Page Length field specifies the length in bytes of the following log parameters.
Log parameters
Each log parameter begins with a 4-byte parameter header followed by one or more bytes of parameter value data.
The Parameter Code field identifies which log parameter is being transferred for that log page.
The Parameter Control field, the 3rd byte of each parameter header, contains several fields.
- DU The Disable Update bit is set to 0 to indicate that the drive updates the log parameter value to reflect events that
should be noted by that parameter.
- DS The Disable Save bit is set to 1 to indicate the parameter is non-savable and is set to 0 to indicate that the
parameter is savable.
- TSD The Target Save Disable bit is set to zero to indicate that the drive provides a Target defined method for sav-
ing log parameters.
- ETC The enable Threshold Comparison bit is set to 0 to indicate the drive does not perform comparisons between
cumulative and any threshold values.
- TMC The Threshold Met Criteria field is not valid because this drive does not perform threshold comparisons.
This field is set to 0.
- LBIN The List Binary bit is only valid if the LP is 1. If the LP bit is 1 and the LBIN bit is 0, then the list parameter
is a string of ASCII graphic code (20h - 7Eh). If the LP bit is 1 and the LBIN bit is 1, then the list parameter is a list
of binary information.
- LP The List Parameter bit is set to 0 for parameters that are data counters. The LP bit is set to 1 for parameters that
are lists.
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