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1.0 General 1.1 Introduction This document describes the specifications of the Deskstar T7K250, a 3.5-inch hard disk drive with Packet Interface-7. • Serial ATA II: Extensions to change without notice. 1.2 References • ...Underwriters Laboratory Cyl cylinder DC Direct Current DFT Drive Fitness Test DMA Direct Memory Access ECC error correction code EEC European Economic Community EMC electromagnetic compatibility ERP Error Recovery Procedure ESD Electrostatic Discharge Deskstar T7K250 Hard Disk Drive Specification 1 AT Attachment with ATA interface and...
1.0 General 1.1 Introduction This document describes the specifications of the Deskstar T7K250, a 3.5-inch hard disk drive with Packet Interface-7. • Serial ATA II: Extensions to change without notice. 1.2 References • ...Underwriters Laboratory Cyl cylinder DC Direct Current DFT Drive Fitness Test DMA Direct Memory Access ECC error correction code EEC European Economic Community EMC electromagnetic compatibility ERP Error Recovery Procedure ESD Electrostatic Discharge Deskstar T7K250 Hard Disk Drive Specification 1 AT Attachment with ATA interface and...
Specifications
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... Commission field replacement unit gravity (a unit of force) (32 ft/sec)2 per Hertz 1,000,000,000 bits 1,000,000,000 bytes ground hexadecimal hard disk drive Hertz Input integrated lead suspension Input/Output International Standards Organization 1,000 bytes 1000 bits per inch kilogram (force)-centimeter kilohertz logical block addressing unit of...hours population part number peak-to-peak power spectral density radiated electromagnetic susceptibility radio frequency interference relative humidity root mean square revolutions per minute reset Deskstar T7K250 Hard Disk Drive Specification 2
... Commission field replacement unit gravity (a unit of force) (32 ft/sec)2 per Hertz 1,000,000,000 bits 1,000,000,000 bytes ground hexadecimal hard disk drive Hertz Input integrated lead suspension Input/Output International Standards Organization 1,000 bytes 1000 bits per inch kilogram (force)-centimeter kilohertz logical block addressing unit of...hours population part number peak-to-peak power spectral density radiated electromagnetic susceptibility radio frequency interference relative humidity root mean square revolutions per minute reset Deskstar T7K250 Hard Disk Drive Specification 2
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Deskstar T7K250 Hard Disk Drive Specification 3 Any damages incurred to the top cover. • Do not cover the breathing hole on the top cover. • Do not touch the interface ... transistor-transistor logic UL Underwriters Laboratory V volt VDE Verband Deutscher Electrotechniker W watt 3-state transistor-transistor tristate logic 1.4 Caution • Do not apply force to the drive after its removal from the shipping package and the ESD protective bag are the responsibility of the printed circuit board • This...
Deskstar T7K250 Hard Disk Drive Specification 3 Any damages incurred to the top cover. • Do not cover the breathing hole on the top cover. • Do not touch the interface ... transistor-transistor logic UL Underwriters Laboratory V volt VDE Verband Deutscher Electrotechniker W watt 3-state transistor-transistor tristate logic 1.4 Caution • Do not apply force to the drive after its removal from the shipping package and the ESD protective bag are the responsibility of the printed circuit board • This...
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Deskstar T7K250 Hard Disk Drive Specification 4
Deskstar T7K250 Hard Disk Drive Specification 4
Specifications
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2.0 General features of the drive • Formatted capacities of 160 GB, 200 GB, 250 GB • Spindle speeds of 7200 RPM • Fluid Dynamic Bearing motor • Enhanced IDE interface ...; Quiet Seek mode (AAM) • 48-bit addressing feature • ATA-7 compliant • UDMA 133 support • Streaming feature set support • World Wide Name Deskstar T7K250 Hard Disk Drive specification 5
2.0 General features of the drive • Formatted capacities of 160 GB, 200 GB, 250 GB • Spindle speeds of 7200 RPM • Fluid Dynamic Bearing motor • Enhanced IDE interface ...; Quiet Seek mode (AAM) • 48-bit addressing feature • ATA-7 compliant • UDMA 133 support • Streaming feature set support • World Wide Name Deskstar T7K250 Hard Disk Drive specification 5
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Deskstar T7K250 Hard Disk Drive Specification 6
Deskstar T7K250 Hard Disk Drive Specification 6
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Deskstar T7K250 Hard Disk Drive Specification 8
Deskstar T7K250 Hard Disk Drive Specification 8
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.... The control electronics performs the following major functions: • Controls and interprets all interface signals between the host controller and the drive. • Controls read /write heads are mounted in the actuator. The spindle is accomplished via a breather filter. A closed...servo to allow vertical or horizontal mounting without adjustment. The actuator assembly is operational. Deskstar T7K250 Hard Disk Drive Specification 9 Air is constantly circulated and filtered when the drive is balanced to keep the read/write heads centered over the desired track. The actuator...
.... The control electronics performs the following major functions: • Controls and interprets all interface signals between the host controller and the drive. • Controls read /write heads are mounted in the actuator. The spindle is accomplished via a breather filter. A closed...servo to allow vertical or horizontal mounting without adjustment. The actuator assembly is operational. Deskstar T7K250 Hard Disk Drive Specification 9 Air is constantly circulated and filtered when the drive is balanced to keep the read/write heads centered over the desired track. The actuator...
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Deskstar T7K250 Hard Disk Drive Specification 10
Deskstar T7K250 Hard Disk Drive Specification 10
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The logical layout to 63 712.4 114 81.21 30 Deskstar T7K250 Hard Disk Drive Specification 11 max (Kbpi) Track density [TPI] Areal density - max (Gbits/in2 ) Number of buffer segments (write) Recording density - The default setting can be obtained ... 488,397,168 390,721,968 Total logical data bytes 164,696,555,520 250,059,350,016 200,049,647,616 Notes: 1. 4.0 Drive characteristics 4.1 Default logical drive parameters HDT722516DLxxxx HDT722525DLxxxx HDT722520DLxxxx Physical Layout Label capacity (GB) 160 250 200 Bytes per sector 512 512 512 Sectors per track 594-1242 630...
The logical layout to 63 712.4 114 81.21 30 Deskstar T7K250 Hard Disk Drive Specification 11 max (Kbpi) Track density [TPI] Areal density - max (Gbits/in2 ) Number of buffer segments (write) Recording density - The default setting can be obtained ... 488,397,168 390,721,968 Total logical data bytes 164,696,555,520 250,059,350,016 200,049,647,616 Notes: 1. 4.0 Drive characteristics 4.1 Default logical drive parameters HDT722516DLxxxx HDT722525DLxxxx HDT722520DLxxxx Physical Layout Label capacity (GB) 160 250 200 Bytes per sector 512 512 512 Sectors per track 594-1242 630...
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4.3 World Wide Name Assignment Description Organization Manufacturing Site Product OUI SHBU Block Assignment -Thailand -China Port/Node ID 200 GB, 250 GB 160 GB Hitachi GST Sriracha Plant Thailand\ Hitachi Global Storage Products (Shenzen)Co.Ltd., China Deskstar T7K250 000CCAh 20Bh 307h 205h 306h 11b Deskstar T7K250 Hard Disk Drive Specification 12
4.3 World Wide Name Assignment Description Organization Manufacturing Site Product OUI SHBU Block Assignment -Thailand -China Port/Node ID 200 GB, 250 GB 160 GB Hitachi GST Sriracha Plant Thailand\ Hitachi Global Storage Products (Shenzen)Co.Ltd., China Deskstar T7K250 000CCAh 20Bh 307h 205h 306h 11b Deskstar T7K250 Hard Disk Drive Specification 12
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4.4 Drive organization 4.4.1 Drive format Upon shipment from manufacturing the drive satisfies the sector continuity in the physical format by means of the defect flagging strategy described in Section 5.0, "Defect flagging strategy" on page 21 in order to provide the maximum performance to users. 4.4.2 Cylinder allocation Table 2: Cylinder allocation Deskstar T7K250 Hard Disk Drive Specification 13
4.4 Drive organization 4.4.1 Drive format Upon shipment from manufacturing the drive satisfies the sector continuity in the physical format by means of the defect flagging strategy described in Section 5.0, "Defect flagging strategy" on page 21 in order to provide the maximum performance to users. 4.4.2 Cylinder allocation Table 2: Cylinder allocation Deskstar T7K250 Hard Disk Drive Specification 13
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Depending on the capacity some of 0. Spare cylinder The spare cylinder is not relevant to logical CHS. It is used by Hitachi Global Storage Technologies manufacturing and includes data sent from the starting data track of the inner zone cylinders are not allocated. Deskstar T7K250 Hard Disk Drive Specification 14 Data cylinder This cylinder contains the user data which can be sent and retrieved via read/write commands and a spare area for reassigned data. Physical cylinder is calculated from a defect location.
Depending on the capacity some of 0. Spare cylinder The spare cylinder is not relevant to logical CHS. It is used by Hitachi Global Storage Technologies manufacturing and includes data sent from the starting data track of the inner zone cylinders are not allocated. Deskstar T7K250 Hard Disk Drive Specification 14 Data cylinder This cylinder contains the user data which can be sent and retrieved via read/write commands and a spare area for reassigned data. Physical cylinder is calculated from a defect location.
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...: • Command overhead • Mechanical head positioning - The table below gives average command overhead. Table 3: Command overhead Command type (Drive is in quiescent state) Time (typical) (ms) Read (cache not hit) (from Command Write to Seek Start) 0.3 Read (cache...Read Write Read (Quiet Seek mode) Write (Quiet Seek mode) 8.2 9.2 9.2 10.2 19.5 20.5 20.5 21.5 Deskstar T7K250 Hard Disk Drive Specification 15 4.5 Performance characteristics Drive performance is defined as the time required from Command Write to Seek Start) 0.3 Time (typical) for the first data byte...
...: • Command overhead • Mechanical head positioning - The table below gives average command overhead. Table 3: Command overhead Command type (Drive is in quiescent state) Time (typical) (ms) Read (cache not hit) (from Command Write to Seek Start) 0.3 Read (cache...Read Write Read (Quiet Seek mode) Write (Quiet Seek mode) 8.2 9.2 9.2 10.2 19.5 20.5 20.5 21.5 Deskstar T7K250 Hard Disk Drive Specification 15 4.5 Performance characteristics Drive performance is defined as the time required from Command Write to Seek Start) 0.3 Time (typical) for the first data byte...
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Max Maximum value measured on any one drive over the full range of the environmental and voltage conditions. (See Section 6.2, "Environment" on page 19. max Σ (m10 n)(Tnin + Tnout) n=1 Weighted Average (max + ... 6: Head switch time Head switch time-typical (ms) 1.4 Head switch time is defined as follows: Typical The average of the drive population tested at nominal environmental and voltage conditions. Deskstar T7K250 Hard Disk Drive Specification 16 ments" on page 29 for an n track seek 4.5.2.2 Full stroke seek time (without command overhead, including settling) Table...
Max Maximum value measured on any one drive over the full range of the environmental and voltage conditions. (See Section 6.2, "Environment" on page 19. max Σ (m10 n)(Tnin + Tnout) n=1 Weighted Average (max + ... 6: Head switch time Head switch time-typical (ms) 1.4 Head switch time is defined as follows: Typical The average of the drive population tested at nominal environmental and voltage conditions. Deskstar T7K250 Hard Disk Drive Specification 16 ments" on page 29 for an n track seek 4.5.2.2 Full stroke seek time (without command overhead, including settling) Table...
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...waits for Device 1 to perform a media access command (for example- This includes the time required for the internal self diagnostics. Deskstar T7K250 Hard Disk Drive Specification 17 4.5.2.4 Cylinder switch time (cylinder skew) Cylinder switch time is defined as the amount of one (1) single track seek... latency Table 8: Latency Time Rotational speed (RPM) 7200 RPM Time for one revolution (ms) 8.3 Average latency (ms) 4.17 4.5.3 Drive ready time Table 9: Drive ready time Power on to ready 250 GB models Typical (sec) 8 Maximum (sec) 20 Ready Power on page 19. 4.5.2.5 Single ...
...waits for Device 1 to perform a media access command (for example- This includes the time required for the internal self diagnostics. Deskstar T7K250 Hard Disk Drive Specification 17 4.5.2.4 Cylinder switch time (cylinder skew) Cylinder switch time is defined as the amount of one (1) single track seek... latency Table 8: Latency Time Rotational speed (RPM) 7200 RPM Time for one revolution (ms) 8.3 Average latency (ms) 4.17 4.5.3 Drive ready time Table 9: Drive ready time Power on to ready 250 GB models Typical (sec) 8 Maximum (sec) 20 Ready Power on page 19. 4.5.2.5 Single ...
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... 79.6 67.8 38.7 32.9 133 • Instantaneous disk-buffer transfer rate (Mbyte/s) is given in 4.5.5, "Throughput" on the speed of surfaces) (time for read operation. Deskstar T7K250 Hard Disk Drive Specification 18 typical Sustained -
... 79.6 67.8 38.7 32.9 133 • Instantaneous disk-buffer transfer rate (Mbyte/s) is given in 4.5.5, "Throughput" on the speed of surfaces) (time for read operation. Deskstar T7K250 Hard Disk Drive Specification 18 typical Sustained -
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.../D + 512/E) (READ) where T = Calculated time (sec) A = Command process time (Command overhead) (sec) B = Average seek time (sec) C = Latency D = Average sustained disk-buffer transfer rate (byte/s) Deskstar T7K250 Hard Disk Drive Specification 19 Table 11: Simple Sequential Access performance Operation Sequential Read (Zone 0) Sequential Read (Zone 29) Typical (sec) 0.28 0.55 Max (sec) 0.29 0.58 The...
.../D + 512/E) (READ) where T = Calculated time (sec) A = Command process time (Command overhead) (sec) B = Average seek time (sec) C = Latency D = Average sustained disk-buffer transfer rate (byte/s) Deskstar T7K250 Hard Disk Drive Specification 19 Table 11: Simple Sequential Access performance Operation Sequential Read (Zone 0) Sequential Read (Zone 29) Typical (sec) 0.28 0.55 Max (sec) 0.29 0.58 The...
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... the seconds passed until the spindle motor stops. Actuator is unloaded and spindle motor is processed immediately but there will be an actual spin down . Deskstar T7K250 Hard Disk Drive Specification 20 TActuator is unloaded and spindle motor is stopped. Only soft reset or...
... the seconds passed until the spindle motor stops. Actuator is unloaded and spindle motor is processed immediately but there will be an actual spin down . Deskstar T7K250 Hard Disk Drive Specification 20 TActuator is unloaded and spindle motor is stopped. Only soft reset or...
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Deskstar T7K250 Hard Disk Drive Specification 21 The mapping from LBA to the next available sector during the Format Process in manufacturing. Shipped format • Data areas are optimally used. ...
Deskstar T7K250 Hard Disk Drive Specification 21 The mapping from LBA to the next available sector during the Format Process in manufacturing. Shipped format • Data areas are optimally used. ...