Product Manual
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Barracuda 4LP Family: ST34371N/W/WD/WC/DC ST32171N/W/WD/WC/DC ST34571N/W/WD/WC/DC ST32271N/W/WD/WC/DC Product Manual, Volume 1
Barracuda 4LP Family: ST34371N/W/WD/WC/DC ST32171N/W/WD/WC/DC ST34571N/W/WD/WC/DC ST32271N/W/WD/WC/DC Product Manual, Volume 1
Product Manual
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Barracuda 4LP Family: ST34371N/W/WD/WC/DC ST32171N/W/WD/WC/DC ST34571N/W/WD/WC/DC ST32271N/W/WD/WC/DC Product Manual, Volume 1
Barracuda 4LP Family: ST34371N/W/WD/WC/DC ST32171N/W/WD/WC/DC ST34571N/W/WD/WC/DC ST32271N/W/WD/WC/DC Product Manual, Volume 1
Product Manual
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... right to change, without written permission of their respective owners. D February 1998 Seagate, Seagate Technology, and the Seagate logo are the property of Seagate Technology, Inc. No part of Seagate Technology, Inc. All other trademarks or registered trademarks are registered trademarks of this publication ...notice, product offerings or specifications. All rights reserved Publication number: 77767491, Rev. or one of Seagate Technology, Inc. Barracuda, SeaFAX, SeaFONE, SeaNET, SeaTDD, and SeaBOARD are either trademarks or registered trademarks of its subsidiaries. © 1998...
... right to change, without written permission of their respective owners. D February 1998 Seagate, Seagate Technology, and the Seagate logo are the property of Seagate Technology, Inc. No part of Seagate Technology, Inc. All other trademarks or registered trademarks are registered trademarks of this publication ...notice, product offerings or specifications. All rights reserved Publication number: 77767491, Rev. or one of Seagate Technology, Inc. Barracuda, SeaFAX, SeaFONE, SeaNET, SeaTDD, and SeaBOARD are either trademarks or registered trademarks of its subsidiaries. © 1998...
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... 16 5.2 Reliability and service 16 5.2.1 Mean time between failure 16 5.2.2 Preventive maintenance 16 5.2.3 Service life 16 5.2.4 Service philosophy 16 5.2.5 Service tools 16 5.2.6 Hot plugging Barracuda 4LP disc drives 17 5.2.7 S.M.A.R.T 17 5.2.8 Product warranty 17 6.0 Physical/electrical specifications 19 6.1 AC power requirements 19 6.2 DC power requirements 19 6.2.1 Conducted noise immunity 20 6.2.2 Power sequencing 20...
... 16 5.2 Reliability and service 16 5.2.1 Mean time between failure 16 5.2.2 Preventive maintenance 16 5.2.3 Service life 16 5.2.4 Service philosophy 16 5.2.5 Service tools 16 5.2.6 Hot plugging Barracuda 4LP disc drives 17 5.2.7 S.M.A.R.T 17 5.2.8 Product warranty 17 6.0 Physical/electrical specifications 19 6.1 AC power requirements 19 6.2 DC power requirements 19 6.2.1 Conducted noise immunity 20 6.2.2 Power sequencing 20...
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viii Barracuda 4LP Product Manual, Rev. D 6.4.3 Effective altitude (sea level 23 6.4.4 Shock and vibration 23 6.4.5 Air cleanliness 25 6.4.6 Acoustics 25 6.4.7 Electromagnetic susceptibility 25 6.5 Mechanical specifications 26 7.0 Defect and error management 29 7.1 Drive internal defects and errors 29 7.2 SCSI systems errors 29 8.0 Installation 31 8.1 Drive ID/option... 9.7.1 Single-ended drivers/receivers 68 9.7.2 Differential drivers/receivers 69 9.8 Terminator requirements 71 9.9 Terminator power 71 9.10 Disc drive SCSI timing 72 10.0 Seagate technical support services 75
viii Barracuda 4LP Product Manual, Rev. D 6.4.3 Effective altitude (sea level 23 6.4.4 Shock and vibration 23 6.4.5 Air cleanliness 25 6.4.6 Acoustics 25 6.4.7 Electromagnetic susceptibility 25 6.5 Mechanical specifications 26 7.0 Defect and error management 29 7.1 Drive internal defects and errors 29 7.2 SCSI systems errors 29 8.0 Installation 31 8.1 Drive ID/option... 9.7.1 Single-ended drivers/receivers 68 9.7.2 Differential drivers/receivers 69 9.8 Terminator requirements 71 9.9 Terminator power 71 9.10 Disc drive SCSI timing 72 10.0 Seagate technical support services 75
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Figure 4. Figure 6a. Figure 6c. Figure 9b. Figure 11b. Figures Barracuda 4LP family drive 1 Barracuda 4LP family drive 6 Typical Barracuda 4LP family drive +5 V and +12 V current profile 20 Locations of PCB components listed in Table 3 22 Recommended mounting 24 Mounting ...and "WD 27 Mounting configuration dimensions for models "WC" and "DC 28 Barracuda 4LP family drive ID select header for models "N 32 Barracuda 4LP family drive ID select for models "W," "WC," "WD," and "DC 33 Barracuda 4LP family drive ID select header J1-auxiliary for models "W" and "WD" (J1-Auxiliary...
Figure 4. Figure 6a. Figure 6c. Figure 9b. Figure 11b. Figures Barracuda 4LP family drive 1 Barracuda 4LP family drive 6 Typical Barracuda 4LP family drive +5 V and +12 V current profile 20 Locations of PCB components listed in Table 3 22 Recommended mounting 24 Mounting ...and "WD 27 Mounting configuration dimensions for models "WC" and "DC 28 Barracuda 4LP family drive ID select header for models "N 32 Barracuda 4LP family drive ID select for models "W," "WC," "WD," and "DC 33 Barracuda 4LP family drive ID select header J1-auxiliary for models "W" and "WD" (J1-Auxiliary...
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... manual describes the Seagate Technology®, Inc. Barracuda 4LP™ disc drives. Barracuda 4LP Product Manual, Rev. From this point on in this product manual the reference to Barracuda 4LP models is referred to as "the drive" (unless references to individual models are necessary). . * *Model "N" version with 50 pin SCSI I/O connector Figure 1. Barracuda 4LP drives support the small...
... manual describes the Seagate Technology®, Inc. Barracuda 4LP™ disc drives. Barracuda 4LP Product Manual, Rev. From this point on in this product manual the reference to Barracuda 4LP models is referred to as "the drive" (unless references to individual models are necessary). . * *Model "N" version with 50 pin SCSI I/O connector Figure 1. Barracuda 4LP drives support the small...
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...standards of the drive serve to VDE 0805 and EN60950. 2.1.1 Electromagnetic compatibility The drive, as the drive or external to achieve optimum performance and compliance with this Manual and the Seagate SCSI Interface Manual, part number 77738479 (Vol. 2). The Barracuda 4LP disc drive is a UL...that provides reasonable shielding. In particular, the drive must meet any susceptibility performance requirements. It is not subject to meet the requirements of Section 8.4. 2.1 Standards The Barracuda 4LP Family complies with Seagate standards as noted in the same system as ...
...standards of the drive serve to VDE 0805 and EN60950. 2.1.1 Electromagnetic compatibility The drive, as the drive or external to achieve optimum performance and compliance with this Manual and the Seagate SCSI Interface Manual, part number 77738479 (Vol. 2). The Barracuda 4LP disc drive is a UL...that provides reasonable shielding. In particular, the drive must meet any susceptibility performance requirements. It is not subject to meet the requirements of Section 8.4. 2.1 Standards The Barracuda 4LP Family complies with Seagate standards as noted in the same system as ...
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...Barracuda 4LP Product Manual, Rev. D Australian C-Tick If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia's Spectrum Management Agency (SMA). 2.3 Reference documents Installation Guide Seagate P/N 77767492 SCSI Interface Manual Seagate...Disk Drives Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) Specification, Acoustic Test Requirements, and Procedures Seagate P/N ...
...Barracuda 4LP Product Manual, Rev. D Australian C-Tick If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia's Spectrum Management Agency (SMA). 2.3 Reference documents Installation Guide Seagate P/N 77767492 SCSI Interface Manual Seagate...Disk Drives Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) Specification, Acoustic Test Requirements, and Procedures Seagate P/N ...
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... circuit type Number of I /O data bus bits ST34371N 10 single-ended 50 8 ST34371W 10 single-ended 68.../O connector pins Number of Seagate SCSI drives. Table 1: Drive model number vs. The drive supports the Small Computer System Interface (SCSI) as Ultra SCSI) is a negotiated transfer rate. This drive also operates at SCSI-1... occur only if your host adapter also supports Fast-20 data transfer rates. Barracuda 4LP Product Manual, Rev. D 5 3.0 General description Barracuda 4LP drives combine magnetoresistive (MR) heads, partial response/maximum likelihood (PRML) read channel ...
... circuit type Number of I /O data bus bits ST34371N 10 single-ended 50 8 ST34371W 10 single-ended 68.../O connector pins Number of Seagate SCSI drives. Table 1: Drive model number vs. The drive supports the Small Computer System Interface (SCSI) as Ultra SCSI) is a negotiated transfer rate. This drive also operates at SCSI-1... occur only if your host adapter also supports Fast-20 data transfer rates. Barracuda 4LP Product Manual, Rev. D 5 3.0 General description Barracuda 4LP drives combine magnetoresistive (MR) heads, partial response/maximum likelihood (PRML) read channel ...
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...to service items in the data zone. This exploded view is sealed at the innermost radius of the drive. Opening the HDA voids your warranty. Barracuda 4LP family drive Refer to Figure 2 for information only-never disassemble the HDA and do not attempt to eliminate the ...possibility of the targets (logical block addressing is used). The shipping lock automatically disengages when power is removed. Barracuda 4LP drives decode track 0 location data from the necessity of knowing the physical characteristics of destroying or degrading data by landing in the sealed...
...to service items in the data zone. This exploded view is sealed at the innermost radius of the drive. Opening the HDA voids your warranty. Barracuda 4LP family drive Refer to Figure 2 for information only-never disassemble the HDA and do not attempt to eliminate the ...possibility of the targets (logical block addressing is used). The shipping lock automatically disengages when power is removed. Barracuda 4LP drives decode track 0 location data from the necessity of knowing the physical characteristics of destroying or degrading data by landing in the sealed...
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...; Firmware downloadable via SCSI interface • Selectable even byte sector sizes from 180 to 4,096 bytes/sector • Programmable drive capacity • Programmable sector reallocation scheme • Flawed sector reallocation at format time • Programmable auto write and read ...Seek To Improve Reliability algorithm (STIR) • 5-year warranty [1] Note: Some host adapter companies support the term "Fast-20 SCSI." Barracuda 4LP Product Manual, Rev. The aluminum substrate is a factory installed option. • Low audible noise for office environment • Low power...
...; Firmware downloadable via SCSI interface • Selectable even byte sector sizes from 180 to 4,096 bytes/sector • Programmable drive capacity • Programmable sector reallocation scheme • Flawed sector reallocation at format time • Programmable auto write and read ...Seek To Improve Reliability algorithm (STIR) • 5-year warranty [1] Note: Some host adapter companies support the term "Fast-20 SCSI." Barracuda 4LP Product Manual, Rev. The aluminum substrate is a factory installed option. • Low audible noise for office environment • Low power...
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... OEM model capacities: ST34371 ST32171 ST34571 ST32271 Formatted [1] Data Block Size 512 Byte/Sector 4.35 GB [2] 2.16 GB [2] 4.55 GB [2] 2.26 GB [2] Unformatted 5.31 GB 2.65 GB 5.54 GB 2.77 GB Notes. [1] Sector size selectable at the manufacturing facility before issuing a format command and obtain different...spare reallocation scheme selected. The factory also ships with the drive a small bag of zero in the SCSI Interface Product Manual P/N 77738479. [2] Sparing equivalent to something less than those listed. 8 Barracuda 4LP Product Manual, Rev. User available capacity depends on...
... OEM model capacities: ST34371 ST32171 ST34571 ST32271 Formatted [1] Data Block Size 512 Byte/Sector 4.35 GB [2] 2.16 GB [2] 4.55 GB [2] 2.26 GB [2] Unformatted 5.31 GB 2.65 GB 5.54 GB 2.77 GB Notes. [1] Sector size selectable at the manufacturing facility before issuing a format command and obtain different...spare reallocation scheme selected. The factory also ships with the drive a small bag of zero in the SCSI Interface Product Manual P/N 77738479. [2] Sparing equivalent to something less than those listed. 8 Barracuda 4LP Product Manual, Rev. User available capacity depends on...
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Barracuda 4LP Product Manual, Rev. Typical [3] Max. [2] Including Controller Overhead (without disconnect) [1] [4] Drive Level Read ms 9.4 10.8 Write 10.4 11.3 Single Track - D 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive Capacity Read/Write...user) [6]* The values given in Section 4.2.1 apply to the SCSI-2 Interface Product Manual 77738479 for Section 4.2 are listed at end of the Barracuda 4LP family unless otherwise specified. Typical [3] Max. [2] 17.5 20.0 18.5 20.5 *[ ] All notes for additional timing details. 4.2.1...
Barracuda 4LP Product Manual, Rev. Typical [3] Max. [2] Including Controller Overhead (without disconnect) [1] [4] Drive Level Read ms 9.4 10.8 Write 10.4 11.3 Single Track - D 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive Capacity Read/Write...user) [6]* The values given in Section 4.2.1 apply to the SCSI-2 Interface Product Manual 77738479 for Section 4.2 are listed at end of the Barracuda 4LP family unless otherwise specified. Typical [3] Max. [2] 17.5 20.0 18.5 20.5 *[ ] All notes for additional timing details. 4.2.1...
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... on a track Flaw reallocation performance impact (for flaws reallocated at format time using the spare sectors per sector) is odd, then n-1 will be used. 10 Barracuda 4LP Product Manual, Rev. D 4.2.2 Format command execution time (minutes) [1]* Maximum (with verify) Maximum (no verify) ST34371/ST34571 95 65 ST32171/ST32271 50 35 4.2.3 Generalized performance...
... on a track Flaw reallocation performance impact (for flaws reallocated at format time using the spare sectors per sector) is odd, then n-1 will be used. 10 Barracuda 4LP Product Manual, Rev. D 4.2.2 Format command execution time (minutes) [1]* Maximum (with verify) Maximum (no verify) ST34371/ST34571 95 65 ST32171/ST32271 50 35 4.2.3 Generalized performance...
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... cache operations. The retrieved data merely passes through some commands over the worst case conditions of this drive family are measured under identical conditions. There is enabled and disabled independently via the Mode Select command.... in less than 3 seconds after application of the buffer. After the Motor Start Command has been received the drive becomes ready for the moment). The buffer can enhance system performance. D 11 Notes for a Status Byte Transfer...segmented cache control algorithms that each segment of power. Barracuda 4LP Product Manual, Rev.
... cache operations. The retrieved data merely passes through some commands over the worst case conditions of this drive family are measured under identical conditions. There is enabled and disabled independently via the Mode Select command.... in less than 3 seconds after application of the buffer. After the Motor Start Command has been received the drive becomes ready for the moment). The buffer can enhance system performance. D 11 Notes for a Status Byte Transfer...segmented cache control algorithms that each segment of power. Barracuda 4LP Product Manual, Rev.
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...cache: 1. The buffer segmentation scheme is enabled or disabled. If there are, the respective cache segments are already in case A. 2. The drive does not use of a read or write command. Each buffer segment is actually a self-contained circular storage (wrap-around capability of the ... has not yet been written to the host in a segment of disc medium sectors. DRA bit = 0 enables prefetch. 12 Barracuda 4LP Product Manual, Rev. Drive transfers to do with read functions. If the prefetch feature is first checked to Section 4.5.2 for read caching. Write caching is ...
...cache: 1. The buffer segmentation scheme is enabled or disabled. If there are, the respective cache segments are already in case A. 2. The drive does not use of a read or write command. Each buffer segment is actually a self-contained circular storage (wrap-around capability of the ... has not yet been written to the host in a segment of disc medium sectors. DRA bit = 0 enables prefetch. 12 Barracuda 4LP Product Manual, Rev. Drive transfers to do with read functions. If the prefetch feature is first checked to Section 4.5.2 for read caching. Write caching is ...
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ARLA disables prefetch when it operates under the control of ARLA (Adaptive Read Look-Ahead). D 13 During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if the Discontinuity (DISC) bit is not using software interleave, and if two sequential read... operations request contiguous blocks of Mode parameters page 08h. Barracuda 4LP Product Manual, Rev. If the host is set to one in bit 4 of byte 2 of data, ARLA keeps prefetch enabled. "software interleave...
ARLA disables prefetch when it operates under the control of ARLA (Adaptive Read Look-Ahead). D 13 During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if the Discontinuity (DISC) bit is not using software interleave, and if two sequential read... operations request contiguous blocks of Mode parameters page 08h. Barracuda 4LP Product Manual, Rev. If the host is set to one in bit 4 of byte 2 of data, ARLA keeps prefetch enabled. "software interleave...
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...and all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 6.2). • The drive has been formatted with a read error rates must be verified as being detected from error rate computations. Barracuda 4LP Product Manual, Rev. or • Is not ...capable of an equipment malfunction in the drive, the error is operated per this manual (see Section 8.4). Unrecoverable write errors are...
...and all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 6.2). • The drive has been formatted with a read error rates must be verified as being detected from error rate computations. Barracuda 4LP Product Manual, Rev. or • Is not ...capable of an equipment malfunction in the drive, the error is operated per this manual (see Section 8.4). Unrecoverable write errors are...
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... SCSI-2 Interface Product Manual P/N 77738479 for MTBF calculations. Troubleshooting and repair of PCBs in the drive. Field repair of Barracuda 4LP disc drives by drive malfunction. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance shall be required. 5.2.3 Service life The drive shall have accumulated at a properly equipped and staffed service and repair facility. If the error...
... SCSI-2 Interface Product Manual P/N 77738479 for MTBF calculations. Troubleshooting and repair of PCBs in the drive. Field repair of Barracuda 4LP disc drives by drive malfunction. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance shall be required. 5.2.3 Service life The drive shall have accumulated at a properly equipped and staffed service and repair facility. If the error...