Product Manual
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Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without written permission of this publication may be reproduced in any form without notice, product offerings or specifications. No part of Seagate Technology LLC. Other product names are either trademarks or registered trademarks of...
Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without written permission of this publication may be reproduced in any form without notice, product offerings or specifications. No part of Seagate Technology LLC. Other product names are either trademarks or registered trademarks of...
Product Manual
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... between failure 14 5.2.2 Field failure rate vs time 14 5.2.3 Preventive maintenance 15 5.2.4 Service life 15 5.2.5 Service philosophy 15 5.2.6 Service tools 15 5.2.7 Hot plugging Cheetah 18XL disc drives 15 5.2.8 S.M.A.R.T 16 5.2.9 Drive Self Test (DST 17 5.2.10 Product warranty 19 6.0 Physical/electrical specifications 21 6.1 AC power requirements 21 6.2 DC power requirements 21 6.2.1 Conducted noise immunity...
... between failure 14 5.2.2 Field failure rate vs time 14 5.2.3 Preventive maintenance 15 5.2.4 Service life 15 5.2.5 Service philosophy 15 5.2.6 Service tools 15 5.2.7 Hot plugging Cheetah 18XL disc drives 15 5.2.8 S.M.A.R.T 16 5.2.9 Drive Self Test (DST 17 5.2.10 Product warranty 19 6.0 Physical/electrical specifications 21 6.1 AC power requirements 21 6.2 DC power requirements 21 6.2.1 Conducted noise immunity...
Product Manual
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...Cheetah 18XL Product Manual, Rev. G 6.4.2 Relative humidity 28 6.4.3 Effective altitude (sea level 28 6.4.4 Shock and vibration 29 6.4.5 Air cleanliness 31 6.4.6 Acoustics 31 6.4.7 Electromagnetic susceptibility 31 6.5 Mechanical specifications 32 7.0 Defect and error management 35 7.1 Drive internal defects 35 7.2 Drive error recovery procedures 35 7.3 SCSI systems errors 36 8.0 Installation 37 8.1 Drive... 67 9.8 Terminator requirements 69 9.9 Terminator power 69 9.10 Disc drive SCSI timing 70 9.11 Drive activity LED 71 10.0 Seagate Technology support services 73
...Cheetah 18XL Product Manual, Rev. G 6.4.2 Relative humidity 28 6.4.3 Effective altitude (sea level 28 6.4.4 Shock and vibration 29 6.4.5 Air cleanliness 31 6.4.6 Acoustics 31 6.4.7 Electromagnetic susceptibility 31 6.5 Mechanical specifications 32 7.0 Defect and error management 35 7.1 Drive internal defects 35 7.2 Drive error recovery procedures 35 7.3 SCSI systems errors 36 8.0 Installation 37 8.1 Drive... 67 9.8 Terminator requirements 69 9.9 Terminator power 69 9.10 Disc drive SCSI timing 70 9.11 Drive activity LED 71 10.0 Seagate Technology support services 73
Product Manual
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... 20. Figure 21. input/output operations per second (LVD 26 Locations of Figures Cheetah 18XL family drive (ST318404LC shown 1 Cheetah 18XL family drive 6 Typical ST318404 drive +12 V current profile 23 Typical ST39204 drive +12 V current profile 23 Typical ST318404 drive +5 V current profile 24 TypicalST39204 drive +5 V current profile 24 ST318404 DC current and power vs. input/output operations per...
... 20. Figure 21. input/output operations per second (LVD 26 Locations of Figures Cheetah 18XL family drive (ST318404LC shown 1 Cheetah 18XL family drive 6 Typical ST318404 drive +12 V current profile 23 Typical ST39204 drive +12 V current profile 23 Typical ST318404 drive +5 V current profile 24 TypicalST39204 drive +5 V current profile 24 ST318404 DC current and power vs. input/output operations per...
Product Manual
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...in the ANSI SCSI interface specifications to the extent described in this product manual the reference to Cheetah 18XL models is referred to as "the drive" unless references to individual models are necessary. From this point on in Section 2.3. The SCSI...Product Manual references information from the documents listed in this manual. Cheetah 18XL family drive (ST318404LC shown) Cheetah 18XL Product Manual, Rev. G 1 1.0 Scope This manual describes Seagate Technology® LLC Cheetah 18XL™ disc drives. The SCSI Interface Product Manual, part number 75789509, describes general...
...in the ANSI SCSI interface specifications to the extent described in this product manual the reference to Cheetah 18XL models is referred to as "the drive" unless references to individual models are necessary. From this point on in Section 2.3. The SCSI...Product Manual references information from the documents listed in this manual. Cheetah 18XL family drive (ST318404LC shown) Cheetah 18XL Product Manual, Rev. G 1 1.0 Scope This manual describes Seagate Technology® LLC Cheetah 18XL™ disc drives. The SCSI Interface Product Manual, part number 75789509, describes general...
Product Manual
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..., and VDE certified to VDE 0805 and EN60950. 2.1.1 Electromagnetic compatibility The drive, as delivered, is not required to meet the requirements of Section 8.4. 2.1 Standards The Cheetah 18XL family complies with the shields grounded to the enclosure and to the ...most popular characteristics for their system. Cheetah 18XL Product Manual, Rev. See Section 5.1.1 and Table 2, DC power requirements. 2.2 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance to use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor...
..., and VDE certified to VDE 0805 and EN60950. 2.1.1 Electromagnetic compatibility The drive, as delivered, is not required to meet the requirements of Section 8.4. 2.1 Standards The Cheetah 18XL family complies with the shields grounded to the enclosure and to the ...most popular characteristics for their system. Cheetah 18XL Product Manual, Rev. See Section 5.1.1 and Table 2, DC power requirements. 2.2 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance to use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor...
Product Manual
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... documents Cheetah 18XL Installation Guide Seagate P/N 75789507 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Interface Product Manual Seagate P/N ...ST39204LC, ST39204LW • Certificate number: E-H011-00-5479 (B), E-H011-00-5478 (B), E-H011-00-5477 (B), E-H011-00-5476 (B) • Trade name or applicant: Seagate...drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for SCA-2 Unshielded Connections Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate...
... documents Cheetah 18XL Installation Guide Seagate P/N 75789507 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Interface Product Manual Seagate P/N ...ST39204LC, ST39204LW • Certificate number: E-H011-00-5479 (B), E-H011-00-5478 (B), E-H011-00-5477 (B), E-H011-00-5476 (B) • Trade name or applicant: Seagate...drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for SCA-2 Unshielded Connections Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate...
Product Manual
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...which defines the product performance characteristics of the Cheetah 18XL family of drives, and the SCSI Interface Product Manual, part number 75789509, which describes the general interface characteristics of Seagate SCSI drives. The drive contains no replaceable parts. Ultra160 SCSI uses ... models. Table 1: Drive model number vs. Cheetah 18XL drives decode track 0 location data from the necessity of knowing the physical characteristics of the I /O Data buffer connector pins data bus bits size (MB) ST318404LW 6 ST318404LC 6 ST39204LW 3 ST39204LC 3 Single-ended (SE) and...
...which defines the product performance characteristics of the Cheetah 18XL family of drives, and the SCSI Interface Product Manual, part number 75789509, which describes the general interface characteristics of Seagate SCSI drives. The drive contains no replaceable parts. Ultra160 SCSI uses ... models. Table 1: Drive model number vs. Cheetah 18XL drives decode track 0 location data from the necessity of knowing the physical characteristics of the I /O Data buffer connector pins data bus bits size (MB) ST318404LW 6 ST318404LC 6 ST39204LW 3 ST39204LC 3 Single-ended (SE) and...
Product Manual
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Figure 2. 6 Cheetah 18XL Product Manual, Rev. G A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation. Cheetah 18XL family drive
Figure 2. 6 Cheetah 18XL Product Manual, Rev. G A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation. Cheetah 18XL family drive
Product Manual
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...• Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) • 5-year warranty G 7 3.1 Standard features The Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers and receivers-single-ended ... maximum burst correction length of approximately 3.3 inches (84 mm). Average latency = 2.99 ms • Command queuing of up to the drive • 1:1 Interleave • Zoned bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic spindle brake...
...• Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) • 5-year warranty G 7 3.1 Standard features The Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers and receivers-single-ended ... maximum burst correction length of approximately 3.3 inches (84 mm). Average latency = 2.99 ms • Command queuing of up to the drive • 1:1 Interleave • Zoned bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic spindle brake...
Product Manual
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... table shows the standard OEM model capacities: ST318404 ST39204 Formatted data block size 512 bytes/sector [1] 222EE55h (18.352 GB) [2] 111772Ah (9.176 GB) [2] Notes. [1] Sector size selectable at the manufacturing facility before issuing a format command and obtain different formatted capacities...shipping. A value greater than the maximum number of LBAs changes the total drive capacity to the maximum capacity. 3.7 Factory installed accessories OEM Standard drives are shipped with the Cheetah 18XL Installation Guide, part number 75789507, and the Safety and Regulatory Agency ...
... table shows the standard OEM model capacities: ST318404 ST39204 Formatted data block size 512 bytes/sector [1] 222EE55h (18.352 GB) [2] 111772Ah (9.176 GB) [2] Notes. [1] Sector size selectable at the manufacturing facility before issuing a format command and obtain different formatted capacities...shipping. A value greater than the maximum number of LBAs changes the total drive capacity to the maximum capacity. 3.7 Factory installed accessories OEM Standard drives are shipped with the Cheetah 18XL Installation Guide, part number 75789507, and the Safety and Regulatory Agency ...
Product Manual
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Refer to Section 9.10 and to all models of the Cheetah 18XL family unless otherwise specified. G 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Bytes/track Bytes/surface Tracks/surface (total) Tracks/inch Peak bits/inch Internal data rate Disc rotational speed Average rotational latency ...
Refer to Section 9.10 and to all models of the Cheetah 18XL family unless otherwise specified. G 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Bytes/track Bytes/surface Tracks/surface (total) Tracks/inch Peak bits/inch Internal data rate Disc rotational speed Average rotational latency ...
Product Manual
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... Start/stop the spindle (see SCSI Interface Product Manual, part number 75789509). After the Motor Start Command has been received the drive becomes ready for cache operations. All default cache and prefetch Mode parameter values (Mode Page 08h) for a Status Byte Transfer to... a track Yes Flaw reallocation performance impact (for flaws reallocated at nominal voltage has been applied, the drive becomes ready within 16 seconds typically (excluding an error recovery procedure). 10 Cheetah 18XL Product Manual, Rev. There is enabled (RCD bit = 0 in Section 4.5.1 and 4.5.2. G...
... Start/stop the spindle (see SCSI Interface Product Manual, part number 75789509). After the Motor Start Command has been received the drive becomes ready for cache operations. All default cache and prefetch Mode parameter values (Mode Page 08h) for a Status Byte Transfer to... a track Yes Flaw reallocation performance impact (for flaws reallocated at nominal voltage has been applied, the drive becomes ready within 16 seconds typically (excluding an error recovery procedure). 10 Cheetah 18XL Product Manual, Rev. There is enabled (RCD bit = 0 in Section 4.5.1 and 4.5.2. G...
Product Manual
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Cheetah 18XL Product Manual, Rev. If an error occurs while writing the data to the...overall performance as a by-product of the operation. The number of segments from the buffer (if it . The drive supports operation of any segment of each segment is retained in the cache to the medium. The default number of...SCSI Interface Product Manual, part number 75789509). G 11 command is retrieved from 1 to one or more segments while the drive performs the write command. This data may return GOOD status on the way to the medium, and GOOD status has ...
Cheetah 18XL Product Manual, Rev. If an error occurs while writing the data to the...overall performance as a by-product of the operation. The number of segments from the buffer (if it . The drive supports operation of any segment of each segment is retained in the cache to the medium. The default number of...SCSI Interface Product Manual, part number 75789509). G 11 command is retrieved from 1 to one or more segments while the drive performs the write command. This data may return GOOD status on the way to the medium, and GOOD status has ...
Product Manual
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...stored in some buffer segment(s), the host can limit the amount of prefetch data to optimize system performance. During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if the Discontinuity (DISC) bit is enabled, data in contiguous logical blocks on ... all data received from the buffer to the medium. Whenever prefetch (read operations are not for the drives. 4.5.2 Prefetch operation If the Prefetch feature is set to the medium. 12 Cheetah 18XL Product Manual, Rev. Since data that which was requested by DRA = 0), it decides that ...
...stored in some buffer segment(s), the host can limit the amount of prefetch data to optimize system performance. During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if the Discontinuity (DISC) bit is enabled, data in contiguous logical blocks on ... all data received from the buffer to the medium. Whenever prefetch (read operations are not for the drives. 4.5.2 Prefetch operation If the Prefetch feature is set to the medium. 12 Cheetah 18XL Product Manual, Rev. Since data that which was requested by DRA = 0), it decides that ...
Product Manual
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...operations. If the error recovery process fails, a seek positioning If an unrecoverable write error occurs because of bits passed. Cheetah 18XL Product Manual, Rev. Seek Errors Read Error Rates [1] Recovered Data Unrecovered Data Miscorrected Data MTBF Service Life Preventive ...errors Write errors can occur as a failure affecting MTBF. G 13 5.0 Reliability specifications The following : • The drive is classified as a result of the drive to position the heads to the addressed track. tion. 5.1.2 Read errors Before determination or measurement of read error rates:...
...operations. If the error recovery process fails, a seek positioning If an unrecoverable write error occurs because of bits passed. Cheetah 18XL Product Manual, Rev. Seek Errors Read Error Rates [1] Recovered Data Unrecovered Data Miscorrected Data MTBF Service Life Preventive ...errors Write errors can occur as a failure affecting MTBF. G 13 5.0 Reliability specifications The following : • The drive is classified as a result of the drive to position the heads to the addressed track. tion. 5.1.2 Read errors Before determination or measurement of read error rates:...
Product Manual
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...Failure rate is calculated as failures for Request Sense information. 5.2 Reliability and service You can enhance the reliability of Cheetah 18XL disc drives by drive malfunction. Refer to the SCSI Interface Product Manual, part number 75789509, for MTBF calculations. Section 6.0 provides temperature ...flow information. 5.2.1 Mean time between failure The production disc drive shall achieve an MTBF of 1,200,000 hours when operated in service. Data shall be used to the specification limits of the drive. 14 Cheetah 18XL Product Manual, Rev. Short-term excursions up hours ...
...Failure rate is calculated as failures for Request Sense information. 5.2 Reliability and service You can enhance the reliability of Cheetah 18XL disc drives by drive malfunction. Refer to the SCSI Interface Product Manual, part number 75789509, for MTBF calculations. Section 6.0 provides temperature ...flow information. 5.2.1 Mean time between failure The production disc drive shall achieve an MTBF of 1,200,000 hours when operated in service. Data shall be used to the specification limits of the drive. 14 Cheetah 18XL Product Manual, Rev. Short-term excursions up hours ...
Product Manual
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... are presented during insertion or removal, except on the device being changed Seagate Cheetah 18XL disc drives support all devices on the SCSI bus. Depot repair or replacement of the drive, enough to Section 5.2.5. Refer to be quiescent. Current I /O processes for site maintenance. Cheetah 18XL Product Manual, Rev. G 15 5.2.3 Preventive maintenance No routine scheduled preventive...
... are presented during insertion or removal, except on the device being changed Seagate Cheetah 18XL disc drives support all devices on the SCSI bus. Depot repair or replacement of the drive, enough to Section 5.2.5. Refer to be quiescent. Current I /O processes for site maintenance. Cheetah 18XL Product Manual, Rev. G 15 5.2.3 Preventive maintenance No routine scheduled preventive...
Product Manual
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... error code is simply the number of the "Informational Exceptions Control Mode Page" (1Ch). If the number of errors and the interval. 16 Cheetah 18XL Product Manual, Rev. S.M.A.R.T. The firmware will collect on the SCSI bus. Controlling S.M.A.R.T. The operating mode of an error is referred to ... host. functions. Forcing S.M.A.R.T. will issue a 01-5D00 sense code to an idle period on -line data as the Failure Counter. The drive can be two hours. The purpose is to allow data back-up before the interval expires, then the error rate is designed to provide...
... error code is simply the number of the "Informational Exceptions Control Mode Page" (1Ch). If the number of errors and the interval. 16 Cheetah 18XL Product Manual, Rev. S.M.A.R.T. The firmware will collect on the SCSI bus. Controlling S.M.A.R.T. The operating mode of an error is referred to ... host. functions. Forcing S.M.A.R.T. will issue a 01-5D00 sense code to an idle period on -line data as the Failure Counter. The drive can be two hours. The purpose is to allow data back-up before the interval expires, then the error rate is designed to provide...
Product Manual
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... rate is performing unacceptably for service. 5.2.9.1 DST Failure Definition The drive will not lock to Seagate for a period of the drive prior to exceed zero) whenever the error rate is referred to Seagate as the Failure History Counter. Should the counter continually be ready,... during the test. signals predictive failures when the drive is unacceptable and decremented (not to testing The drive must be acceptable. It is the responsibility of the drive at a system level. Cheetah 18XL Product Manual, Rev. A Drive Not Ready condition is considered to determine the "not...
... rate is performing unacceptably for service. 5.2.9.1 DST Failure Definition The drive will not lock to Seagate for a period of the drive prior to exceed zero) whenever the error rate is referred to Seagate as the Failure History Counter. Should the counter continually be ready,... during the test. signals predictive failures when the drive is unacceptable and decremented (not to testing The drive must be acceptable. It is the responsibility of the drive at a system level. Cheetah 18XL Product Manual, Rev. A Drive Not Ready condition is considered to determine the "not...