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... the operation theory of the MHJ Series and MHK Series. Abbreviation This section gives the meanings of the MHJ Series and MHK Series. These drives have a built-in this manual. CHAPTER 5 Interface This chapter describes the interface specifications of the MHJ Series and MHK Series. CHAPTER 2 ...E088-03EN i CHAPTER 6 Operations This chapter describes the operations of the definitions used in controller that the reader has a basic knowledge of hard disk drives and their implementations in which they operate. Preface This manual describes the MHJ Series and MHK Series, 2.5-inch...
... the operation theory of the MHJ Series and MHK Series. Abbreviation This section gives the meanings of the MHJ Series and MHK Series. These drives have a built-in this manual. CHAPTER 5 Interface This chapter describes the interface specifications of the MHJ Series and MHK Series. CHAPTER 2 ...E088-03EN i CHAPTER 6 Operations This chapter describes the operations of the definitions used in controller that the reader has a basic knowledge of hard disk drives and their implementations in which they operate. Preface This manual describes the MHJ Series and MHK Series, 2.5-inch...
Manual/User Guide
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...just a signal word. This indicates information that could result in the "Important Alert Items." This alert signal also indicates that the disk drive is centered, followed below by external magnetic fields. To make this manual. The following are the alert signals and their meanings: This... manual easier for Alert Messages This manual uses the following is an example: (Example) Data corruption: Avoid mounting the disk drive near strong magnetic sources such as loud speakers. The following conventions to understand, opinions from readers are also listed in minor or...
...just a signal word. This indicates information that could result in the "Important Alert Items." This alert signal also indicates that the disk drive is centered, followed below by external magnetic fields. To make this manual. The following are the alert signals and their meanings: This... manual easier for Alert Messages This manual uses the following is an example: (Example) Data corruption: Avoid mounting the disk drive near strong magnetic sources such as loud speakers. The following conventions to understand, opinions from readers are also listed in minor or...
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Fujitsu is not liable for any other disk drive defects, such as those caused by user misoperation or mishandling, inappropriate operating environments, defects in the power supply or cable, problems of the host system, or other causes outside the disk drive. Preface Liability Exception "Disk drive defects" refers to defects that involve adjustment, repair, or replacement. C141-E088-03EN iii
Fujitsu is not liable for any other disk drive defects, such as those caused by user misoperation or mishandling, inappropriate operating environments, defects in the power supply or cable, problems of the host system, or other causes outside the disk drive. Preface Liability Exception "Disk drive defects" refers to defects that involve adjustment, repair, or replacement. C141-E088-03EN iii
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...-E088-03EN v Also, damage to the predate or other property, may occur if the user does not perform the procedure correctly. Ensure that the disk drive is not affected by the edges. Important Alert Items Important Alert Messages The important alert messages in minor or moderate personal injury if the user...
...-E088-03EN v Also, damage to the predate or other property, may occur if the user does not perform the procedure correctly. Ensure that the disk drive is not affected by the edges. Important Alert Items Important Alert Messages The important alert messages in minor or moderate personal injury if the user...
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Manual Organization MHJ2181AT, MHK2120AT, MHK2090AT, MHK2060AT DISK DRIVES PRODUCT MANUAL (C141-E088) • Device Overview • Device Configuration • Installation Conditions • Theory of Device Operation • Interface • Operations MHJ2181AT, MHK2120AT, MHK2090AT, MHK2060AT DISK DRIVES MAINTENANCE MANUAL (C141-F038) • Maintenance and Diagnosis • Removal and Replacement Procedure C141-E088-03EN vii
Manual Organization MHJ2181AT, MHK2120AT, MHK2090AT, MHK2060AT DISK DRIVES PRODUCT MANUAL (C141-E088) • Device Overview • Device Configuration • Installation Conditions • Theory of Device Operation • Interface • Operations MHJ2181AT, MHK2120AT, MHK2090AT, MHK2060AT DISK DRIVES MAINTENANCE MANUAL (C141-F038) • Maintenance and Diagnosis • Removal and Replacement Procedure C141-E088-03EN vii
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... 3-9 3.3.2 Cable connector specifications 3-10 3.3.3 Device connection 3-10 3.3.4 Power supply connector (CN1) 3-11 3.4 Jumper Settings 3-11 3.4.1 Location of setting jumpers 3-11 3.4.2 Factory default setting 3-12 3.4.3 Master drive-slave drive setting 3-12 3.4.4 CSEL setting 3-13 CHAPTER 4 Theory of Device Operation 4-1 4.1 Outline 4-2 4.2 Subassemblies 4-2 4.2.1 Disk 4-2 4.2.2 Head 4-2 4.2.3 Spindle 4-3 4.2.4 Actuator 4-3 4.2.5 Air filter 4-3 4.3 Circuit Configuration 4-4 4.4 Power-on Sequence 4-6 4.5 Self...
... 3-9 3.3.2 Cable connector specifications 3-10 3.3.3 Device connection 3-10 3.3.4 Power supply connector (CN1) 3-11 3.4 Jumper Settings 3-11 3.4.1 Location of setting jumpers 3-11 3.4.2 Factory default setting 3-12 3.4.3 Master drive-slave drive setting 3-12 3.4.4 CSEL setting 3-13 CHAPTER 4 Theory of Device Operation 4-1 4.1 Outline 4-2 4.2 Subassemblies 4-2 4.2.1 Disk 4-2 4.2.2 Head 4-2 4.2.3 Spindle 4-3 4.2.4 Actuator 4-3 4.2.5 Air filter 4-3 4.3 Circuit Configuration 4-4 4.4 Power-on Sequence 4-6 4.5 Self...
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Contents Illustrations Figures Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on 1-6 Figure 2.1 Disk drive outerview (the MHJ Series and MHK Series) 2-2 Figure 2.2 Configuration of disk media heads 2-3 Figure 2.3 1 drive system configuration 2-4 Figure 2.4 2 drives configuration 2-4 Figure 3.1 Dimensions (MHJ/MHK series) 3-2 Figure 3.2 Orientation (Sample: MHJ2181AT) 3-4 Figure 3.3 Mounting frame structure 3-5 Figure 3.4 Location of breather...
Contents Illustrations Figures Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on 1-6 Figure 2.1 Disk drive outerview (the MHJ Series and MHK Series) 2-2 Figure 2.2 Configuration of disk media heads 2-3 Figure 2.3 1 drive system configuration 2-4 Figure 2.4 2 drives configuration 2-4 Figure 3.1 Dimensions (MHJ/MHK series) 3-2 Figure 3.2 Orientation (Sample: MHJ2181AT) 3-4 Figure 3.3 Mounting frame structure 3-5 Figure 3.4 Location of breather...
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The MHJ Series and MHK Series are 2.5-inch hard disk drives with built-in this chapter, and specifications and power requirement are described. These disk drives use the AT-bus hard disk interface protocol and are compact and reliable. C141-E088-03EN 1-1 CHAPTER 1 Device Overview 1.1 Features 1.2 Device Specifications 1.3 Power Requirements 1.4 Environmental Specifications 1.5 Acoustic Noise 1.6 Shock and Vibration 1.7 Reliability 1.8 Error Rate 1.9 Media Defects Overview and features are described in disk controllers.
The MHJ Series and MHK Series are 2.5-inch hard disk drives with built-in this chapter, and specifications and power requirement are described. These disk drives use the AT-bus hard disk interface protocol and are compact and reliable. C141-E088-03EN 1-1 CHAPTER 1 Device Overview 1.1 Features 1.2 Device Specifications 1.3 Power Requirements 1.4 Environmental Specifications 1.5 Acoustic Noise 1.6 Shock and Vibration 1.7 Reliability 1.8 Error Rate 1.9 Media Defects Overview and features are described in disk controllers.
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... head positioning mechanism greatly increases the positioning speed. The MHJ Series and MHK Series have a formatted capacity of 18.1 GB (MHJ2181AT), 12.0 GB (MHK2120AT), 9.0 GB (MHK2090AT) and 6.0 GB (MHK2060AT) respectively. (3) High-speed Transfer rate The disk drives (the MHJ Series and MHK Series) have 1 disk or 2 disks of 65 mm (2.5 inches) diameter, and its height is...
... head positioning mechanism greatly increases the positioning speed. The MHJ Series and MHK Series have a formatted capacity of 18.1 GB (MHJ2181AT), 12.0 GB (MHK2120AT), 9.0 GB (MHK2090AT) and 6.0 GB (MHK2060AT) respectively. (3) High-speed Transfer rate The disk drives (the MHJ Series and MHK Series) have 1 disk or 2 disks of 65 mm (2.5 inches) diameter, and its height is...
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.... This cache system enables fast data access. The ECC has improved buffer error correction for correctable data errors. (6) Self-diagnosis The disk drives (the MHJ Series and MHK Series) have a diagnostic function to check operation of writing to the disk media. Executing the diagnostic command ... item (7), the buffer contributes to efficient I/O processing. (3) Read-ahead cache system After the execution of a disk read command, the disk drive automatically reads the subsequent data block and writes it to the data buffer (read command would normally cause another disk access. The next disk ...
.... This cache system enables fast data access. The ECC has improved buffer error correction for correctable data errors. (6) Self-diagnosis The disk drives (the MHJ Series and MHK Series) have a diagnostic function to check operation of writing to the disk media. Executing the diagnostic command ... item (7), the buffer contributes to efficient I/O processing. (3) Read-ahead cache system After the execution of a disk read command, the disk drive automatically reads the subsequent data block and writes it to the data buffer (read command would normally cause another disk access. The next disk ...
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Cable length: 0.46 m) Data Transfer Rate • To/From Media 12.5 to Drive Read) Typ.: 5 sec • Stop (at Power Down) Typ.: 5 sec Interface ATA-5 (Max. Device Overview 1.2 Device Specifications 1.2.1 Specifications summary Table 1.1 shows the ... 9.5 mm × 100.0 mm ×70.0 mm Weight 145 g 98 g *1: Capacity under the LBA mode. 1-4 C141-E088-03EN Table 1.1 Specifications (1/2) MHJ2181AT MHK2120AT MHK2090AT MHK2060AT Format Capacity (*1) 18.14 GB 12.07 GB 9.04 GB 6.00 GB Number of Heads 6 4 3 2 Number of Cylinders (User) 14,784 Number of the disk...
Cable length: 0.46 m) Data Transfer Rate • To/From Media 12.5 to Drive Read) Typ.: 5 sec • Stop (at Power Down) Typ.: 5 sec Interface ATA-5 (Max. Device Overview 1.2 Device Specifications 1.2.1 Specifications summary Table 1.1 shows the ... 9.5 mm × 100.0 mm ×70.0 mm Weight 145 g 98 g *1: Capacity under the LBA mode. 1-4 C141-E088-03EN Table 1.1 Specifications (1/2) MHJ2181AT MHK2120AT MHK2090AT MHK2060AT Format Capacity (*1) 18.14 GB 12.07 GB 9.04 GB 6.00 GB Number of Heads 6 4 3 2 Number of Cylinders (User) 14,784 Number of the disk...
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...) MHK series 120G 0-peak (1,176 m/s2 0-peak) 11 ms duration (no damage) 1-8 C141-E088-03EN Table 1.5 Acoustic noise specification Item Sound Pressure • Idle mode (DRIVE READY) Specification 30 dBA typical at 1 m Note: Measure the noise from the cover top surface. 1.6 Shock and Vibration Table 1.6 lists the shock and vibration specification.
...) MHK series 120G 0-peak (1,176 m/s2 0-peak) 11 ms duration (no damage) 1-8 C141-E088-03EN Table 1.5 Acoustic noise specification Item Sound Pressure • Idle mode (DRIVE READY) Specification 30 dBA typical at 1 m Note: Measure the noise from the cover top surface. 1.6 Shock and Vibration Table 1.6 lists the shock and vibration specification.
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...of operation, whichever occurs first. When the DE surface temperature exceeds 48°C, the disk drives requires no overhaul for five years or 20,000 hours of defects (alternative block assignment). Disk drive defects do not include failures caused by external factors, such as follows: Total operation time in... defined as damage caused by a specialist maintenance staff member. (3) Service life In situations where management and handling are correct, the disk drive requires no overhaul for five years when the DE surface temperature is assured in all fields (*1) *1 "Disk...
...of operation, whichever occurs first. When the DE surface temperature exceeds 48°C, the disk drives requires no overhaul for five years or 20,000 hours of defects (alternative block assignment). Disk drive defects do not include failures caused by external factors, such as follows: Total operation time in... defined as damage caused by a specialist maintenance staff member. (3) Service life In situations where management and handling are correct, the disk drive requires no overhaul for five years when the DE surface temperature is assured in all fields (*1) *1 "Disk...
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... and include read retries of 1014 bits. Device Overview 1.8 Error Rate Known defects, for which alternative blocks can be recovered by the disk drive. It is assumed that the data blocks to be accessed are evenly distributed on the disk media. (1) Unrecoverable read error Read errors that ...seek operations. 1.9 Media Defects Defective sectors are automatically accessed by one retry shall occur no more than 10 times when reading data of drive without user's retry and ECC corrections shall occur no more than 10 times in the error rate count below. Alternate sectors are replaced ...
... and include read retries of 1014 bits. Device Overview 1.8 Error Rate Known defects, for which alternative blocks can be recovered by the disk drive. It is assumed that the data blocks to be accessed are evenly distributed on the disk media. (1) Unrecoverable read error Read errors that ...seek operations. 1.9 Media Defects Defective sectors are automatically accessed by one retry shall occur no more than 10 times when reading data of drive without user's retry and ECC corrections shall occur no more than 10 times in the error rate count below. Alternate sectors are replaced ...
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CHAPTER 2 Device Configuration 2.1 Device Configuration 2.2 System Configuration This chapter describes the internal configurations of the hard disk drives and the configuration of the systems in which they operate. C141-E088-03EN 2-1
CHAPTER 2 Device Configuration 2.1 Device Configuration 2.2 System Configuration This chapter describes the internal configurations of the hard disk drives and the configuration of the systems in which they operate. C141-E088-03EN 2-1
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.... In the disk surface, servo information necessary for controlling positioning and read /write preamplifier, and controller PCA. MHJ21xxAT MHK2xxxAT Figure 2.1 Disk drive outerview (the MHJ Series and MHK Series) (1) Disk (2) Head The outer diameter of a disk enclosure (DE), read /write and user... data are of the contact start /stop (CSS) type. MHJ2181AT: 3 disks MHK2120AT: 2 disks MHK2090AT: 2 disks MHK2060AT: 1 disk The heads are written. The disk enclosure contains the disk media, heads, spindle motors, actuators, and a circulating air filter. The disk...
.... In the disk surface, servo information necessary for controlling positioning and read /write preamplifier, and controller PCA. MHJ21xxAT MHK2xxxAT Figure 2.1 Disk drive outerview (the MHJ Series and MHK Series) (1) Disk (2) Head The outer diameter of a disk enclosure (DE), read /write and user... data are of the contact start /stop (CSS) type. MHJ2181AT: 3 disks MHK2120AT: 2 disks MHK2090AT: 2 disks MHK2060AT: 1 disk The heads are written. The disk enclosure contains the disk media, heads, spindle motors, actuators, and a circulating air filter. The disk...
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...MPU) achieves a high-performance AT controller. C141-E088-03EN 2-3 It improves data reliability by preventing errors caused by a direct drive Hall-less DC motor. (4) Actuator The actuator uses a revolving voice coil motor (VCM) structure which consumes low power and ...generates very little heat. 2.1 Device Configuration Head 5 4 3 2 1 0 MHJ2181AT Head 3 2 1 0 MHK2120AT 2 1 0 MHK2090AT Head 1 0 MHK2060AT Figure 2.2 Configuration of disk media heads (3) Spindle motor The disks are rotated by external noise. (7) Controller circuit The controller circuit consists of an LSI chip...
...MPU) achieves a high-performance AT controller. C141-E088-03EN 2-3 It improves data reliability by preventing errors caused by a direct drive Hall-less DC motor. (4) Actuator The actuator uses a revolving voice coil motor (VCM) structure which consumes low power and ...generates very little heat. 2.1 Device Configuration Head 5 4 3 2 1 0 MHJ2181AT Head 3 2 1 0 MHK2120AT 2 1 0 MHK2090AT Head 1 0 MHK2060AT Figure 2.2 Configuration of disk media heads (3) Spindle motor The disks are rotated by external noise. (7) Controller circuit The controller circuit consists of an LSI chip...
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....6 MB/s (ATA-3, Mode 4), the DMA transfer at 16.6 MB/s (ATA-3, Multiword Mode 2) and also the U-DMA at 66.6 MB/s (ATA-3, Mode 4). 2.2.2 1 drive connection MHJ2181AT MHKC2013220AT MMHHKC22004900AATT MHK2060AT Figure 2.3 1 drive system configuration 2.2.3 2 drives connection (Host adaptor) MHJ2181AT MMHHCK22013220AATT MMHHCK22004900AATT MHK2060AT MHJ2181AT MMMMMMMMHHHHHHHHKKKGHHCC222222210010002960633400024220AAAAAAATTTTTTT Note: When the drive that is not conformed to ATA is connected to the disk...
....6 MB/s (ATA-3, Mode 4), the DMA transfer at 16.6 MB/s (ATA-3, Multiword Mode 2) and also the U-DMA at 66.6 MB/s (ATA-3, Mode 4). 2.2.2 1 drive connection MHJ2181AT MHKC2013220AT MMHHKC22004900AATT MHK2060AT Figure 2.3 1 drive system configuration 2.2.3 2 drives connection (Host adaptor) MHJ2181AT MMHHCK22013220AATT MMHHCK22004900AATT MHK2060AT MHJ2181AT MMMMMMMMHHHHHHHHKKKGHHCC222222210010002960633400024220AAAAAAATTTTTTT Note: When the drive that is not conformed to ATA is connected to the disk...
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... (PIO mode 3, mode 4, or DMA mode 2 U-DMA mode 4), occurence of ringing or crosstalk of the signal lines (AT bus) between the HA and the disk drive should be a great cause of the obstruction of the signal lines including the HA and cable does not exceed the ATA-5 standard, and the cable... length between the HA and the disk drive may be as short as possible. C141-E088-03EN 2-5 Thus, it the cause of "AT attachment". 2.2 System Configuration HA (host adaptor) consists of the disk...
... (PIO mode 3, mode 4, or DMA mode 2 U-DMA mode 4), occurence of ringing or crosstalk of the signal lines (AT bus) between the HA and the disk drive should be a great cause of the obstruction of the signal lines including the HA and cable does not exceed the ATA-5 standard, and the cable... length between the HA and the disk drive may be as short as possible. C141-E088-03EN 2-5 Thus, it the cause of "AT attachment". 2.2 System Configuration HA (host adaptor) consists of the disk...
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C141-E088-03EN 3-1 CHAPTER 3 Installation Conditions 3.1 Dimensions 3.2 Mounting 3.3 Cable Connections 3.4 Jumper Settings This chapter gives the external dimensions, installation conditions, surface temperature conditions, cable connections, and switch settings of the hard disk drives.
C141-E088-03EN 3-1 CHAPTER 3 Installation Conditions 3.1 Dimensions 3.2 Mounting 3.3 Cable Connections 3.4 Jumper Settings This chapter gives the external dimensions, installation conditions, surface temperature conditions, cable connections, and switch settings of the hard disk drives.