Product Manual
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D Rev. Reynolds K. Schweiss/B. Reynolds K. Schweiss/B. Schweiss/B. Reynolds K. Notice. C Rev. F Rev. Reynolds K. B Rev. If you need the SCSI interface information, order the SCSI Interface Product Manual, Volume 2, part number 75789509. E Rev. Reynolds Sheets Affected 1/1, v thru viii, 1-82. 4. 28. 4, 15, and 59. 4. 3 and 49. .../2001 10/15/2001 Writer/Engineer L. Reynolds K. Schweiss/B. Product Manual 75789506 is Volume 1 of a two-volume document with the SCSI interface information in the SCSI Interface Product Manual, Volume 2, part number 75789509. A Rev.
D Rev. Reynolds K. Schweiss/B. Reynolds K. Schweiss/B. Schweiss/B. Reynolds K. Notice. C Rev. F Rev. Reynolds K. B Rev. If you need the SCSI interface information, order the SCSI Interface Product Manual, Volume 2, part number 75789509. E Rev. Reynolds Sheets Affected 1/1, v thru viii, 1-82. 4. 28. 4, 15, and 59. 4. 3 and 49. .../2001 10/15/2001 Writer/Engineer L. Reynolds K. Schweiss/B. Product Manual 75789506 is Volume 1 of a two-volume document with the SCSI interface information in the SCSI Interface Product Manual, Volume 2, part number 75789509. A Rev.
Product Manual
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...3.3 Performance 7 3.4 Reliability 7 3.5 Unformatted and formatted capacities 8 3.6 Programmable drive capacity 8 3.7 Factory installed accessories 8 3.8 Options (factory installed 8 4.0 Performance characteristics 9 4.1 Internal drive characteristics (transparent to user 9 4.2 SCSI performance characteristics (visible to user 9 4.2.1 Access time 9 4.2.2 Format command...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 ...
...3.3 Performance 7 3.4 Reliability 7 3.5 Unformatted and formatted capacities 8 3.6 Programmable drive capacity 8 3.7 Factory installed accessories 8 3.8 Options (factory installed 8 4.0 Performance characteristics 9 4.1 Internal drive characteristics (transparent to user 9 4.2 SCSI performance characteristics (visible to user 9 4.2.1 Access time 9 4.2.2 Format command...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 ...
Product Manual
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.../ACK offset 56 9.6 Physical interface 56 9.6.1 DC cable and connector 56 9.6.2 SCSI interface physical description 58 9.6.3 SCSI interface cable requirements 58 9.6.4 Mating connectors 59 9.7 Electrical description 67 9.7.1 Multimode-SE and LVD alternatives 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
.../ACK offset 56 9.6 Physical interface 56 9.6.1 DC cable and connector 56 9.6.2 SCSI interface physical description 58 9.6.3 SCSI interface cable requirements 58 9.6.4 Mating connectors 59 9.7 Electrical description 67 9.7.1 Multimode-SE and LVD alternatives 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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... chain interface cabling for LW drives 60 Nonshielded 68 pin SCSI device connector used on LW drives 61 Nonshielded 80 pin SCSI "SCA-2" connector, used on LC drives 62 LVD output signals 68 Typical SE-LVD alternative transmitter receiver circuits 68 Figure 9. Figure 13. Figure 17. Figure 21. Figure 3. Figure 20. Cheetah 18XL Product Manual, Rev...
... chain interface cabling for LW drives 60 Nonshielded 68 pin SCSI device connector used on LW drives 61 Nonshielded 80 pin SCSI "SCA-2" connector, used on LC drives 62 LVD output signals 68 Typical SE-LVD alternative transmitter receiver circuits 68 Figure 9. Figure 13. Figure 17. Figure 21. Figure 3. Figure 20. Cheetah 18XL Product Manual, Rev...
Product Manual
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... this product manual the reference to Cheetah 18XL models is referred to as "the drive" unless references to individual models are necessary. Cheetah 18XL drives support the Small Computer System Interface (SCSI) as described in the ANSI SCSI interface specifications to the extent described in this and other families of Seagate drives. The SCSI Interface Product Manual references information...
... this product manual the reference to Cheetah 18XL models is referred to as "the drive" unless references to individual models are necessary. Cheetah 18XL drives support the Small Computer System Interface (SCSI) as described in the ANSI SCSI interface specifications to the extent described in this and other families of Seagate drives. The SCSI Interface Product Manual references information...
Product Manual
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... UL1950, CSA certified to CSA C22.2 No. 95095, and VDE certified to ensure that the drive meets the appropriate EMI requirements in the areas of this Manual and the Seagate SCSI Interface Product Manual, part number 75789509. Cheetah 18XL Product Manual, Rev. The computer manufacturer or system integrator shall confirm EMC compliance and provide...
... UL1950, CSA certified to CSA C22.2 No. 95095, and VDE certified to ensure that the drive meets the appropriate EMI requirements in the areas of this Manual and the Seagate SCSI Interface Product Manual, part number 75789509. Cheetah 18XL Product Manual, Rev. The computer manufacturer or system integrator shall confirm EMC compliance and provide...
Product Manual
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... (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI). 2.3 Reference 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 75789509 Applicable ANSI Small Computer System Interface (SCSI) document numbers: T10/1143D Enhanced SCSI Parallel Interface (EPI) T10/1236D Primary Commands-2 (SPC-2) T10/996D...
... (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI). 2.3 Reference 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 75789509 Applicable ANSI Small Computer System Interface (SCSI) document numbers: T10/1143D Enhanced SCSI Parallel Interface (EPI) T10/1236D Primary Commands-2 (SPC-2) T10/996D...
Product Manual
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...reliability concerns. Cheetah 18XL Product Manual, Rev. This drive also operates at the factory. The head and disc assembly (HDA) is compatible with the required hardware requirements of the I /O Data buffer connector pins data bus bits size (MB) ST318404LW 6 ST318404LC 6 ST39204LW 3 ST39204LC 3 Single-... environment. differentiating features Model number Number of active heads I/O circuit type [1] Number of I/O Number of Seagate SCSI drives. Cheetah 18XL drives use a dedicated landing zone at the innermost radius of destroying or degrading data by landing in the ANSI...
...reliability concerns. Cheetah 18XL Product Manual, Rev. This drive also operates at the factory. The head and disc assembly (HDA) is compatible with the required hardware requirements of the I /O Data buffer connector pins data bus bits size (MB) ST318404LW 6 ST318404LC 6 ST39204LW 3 ST39204LC 3 Single-... environment. differentiating features Model number Number of active heads I/O circuit type [1] Number of I/O Number of Seagate SCSI drives. Cheetah 18XL drives use a dedicated landing zone at the innermost radius of destroying or degrading data by landing in the ANSI...
Product Manual
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...Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers and receivers-single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus • Asynchronous and synchronous data transfer protocol • Firmware downloadable via SCSI... Embedded servo design • Self diagnostics performed when power is applied to 64 commands • Background processing of up to the drive • 1:1 Interleave • Zoned bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic ...
...Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers and receivers-single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus • Asynchronous and synchronous data transfer protocol • Firmware downloadable via SCSI... Embedded servo design • Self diagnostics performed when power is applied to 64 commands • Background processing of up to the drive • 1:1 Interleave • Zoned bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic ...
Product Manual
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...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 than the maximum number of LBAs changes the total drive capacity to the value in the number of... protection against transit damage. See Mode Select command and Format command in the SCSI Interface Product Manual, part number 75789509. 8 Cheetah 18XL Product Manual, Rev. The factory also ships with the drive a small bag of alternate sectors (LBAs) per sparing zone, and the ...
...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 than the maximum number of LBAs changes the total drive capacity to the value in the number of... protection against transit damage. See Mode Select command and Format command in the SCSI Interface Product Manual, part number 75789509. 8 Cheetah 18XL Product Manual, Rev. The factory also ships with the drive a small bag of alternate sectors (LBAs) per sparing zone, and the ...
Product Manual
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... mode 5.0 Mbytes/sec [4] 10.0 Mbytes/sec [4] Ultra2 SCSI 5.0 to 40 Mbytes/sec 5.0 to 80 Mbytes/sec Ultra160 SCSI 5.0 to 80 Mbytes/sec 5.0 to 160 Mbytes/sec Typical [2] Including controller overhead (without disconnect) [1] [3] Drive level Read 5.4 0.8 10.2 Write msec 6.0 1.1 11.2... SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply to the SCSI Interface Product Manual, part number 75789509, for additional timing details. 4.2.1 Access time [5] Average - Typical [2] Single Track - Refer to Section 9.10 and to all models of the Cheetah ...
... mode 5.0 Mbytes/sec [4] 10.0 Mbytes/sec [4] Ultra2 SCSI 5.0 to 40 Mbytes/sec 5.0 to 80 Mbytes/sec Ultra160 SCSI 5.0 to 80 Mbytes/sec 5.0 to 160 Mbytes/sec Typical [2] Including controller overhead (without disconnect) [1] [3] Drive level Read 5.4 0.8 10.2 Write msec 6.0 1.1 11.2... SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply to the SCSI Interface Product Manual, part number 75789509, for additional timing details. 4.2.1 Access time [5] Average - Typical [2] Single Track - Refer to Section 9.10 and to all models of the Cheetah ...
Product Manual
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... in many cases can be used. 10 Cheetah 18XL Product Manual, Rev. Read/write consecutive sectors on 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... under nominal conditions of temperature, voltage, and horizontal orientation as measured on the drive. 4.4 Prefetch/multi-segmented cache control The drive provides prefetch (read and to some commands over the SCSI interface in cache operations. The buffer can enhance system performance. If cache operation ...
... in many cases can be used. 10 Cheetah 18XL Product Manual, Rev. Read/write consecutive sectors on 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... under nominal conditions of temperature, voltage, and horizontal orientation as measured on the drive. 4.4 Prefetch/multi-segmented cache control The drive provides prefetch (read and to some commands over the SCSI interface in cache operations. The buffer can enhance system performance. If cache operation ...
Product Manual
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... segment, overwriting the data that are to one or more segments while the drive performs the write command. If write caching is there), before the data has been written to in the SCSI Interface Product Manual. When the requested LB is reached that makes use in...drive may be selected using the Mode Select command, but before any attempt to 32. G 11 command is first checked to see Section 4.5.2). When a write command is issued, if RCD=0, the cache is retrieved from a previous read operation with the disconnect/reconnect specification referred to the medium. Cheetah...
... segment, overwriting the data that are to one or more segments while the drive performs the write command. If write caching is there), before the data has been written to in the SCSI Interface Product Manual. When the requested LB is reached that makes use in...drive may be selected using the Mode Select command, but before any attempt to 32. G 11 command is first checked to see Section 4.5.2). When a write command is issued, if RCD=0, the cache is retrieved from a previous read operation with the disconnect/reconnect specification referred to the medium. Cheetah...
Product Manual
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Cheetah 18XL Product Manual, Rev. Refer to Section 3.2, "Media Characteristics." • Assume random data. 5.1.1 Environmental interference When evaluating systems operation under conditions of Electromagnetic Interference (EMI), the performance of bits passed. Therefore, write errors are not predictable as a function of the number of the drive... is defined as one that is classified as being detected from the error or fault status provided through the drive or SCSI interface; If an unrecoverable write error occurs because of being written correctly on the media. • All ...
Cheetah 18XL Product Manual, Rev. Refer to Section 3.2, "Media Characteristics." • Assume random data. 5.1.1 Environmental interference When evaluating systems operation under conditions of Electromagnetic Interference (EMI), the performance of bits passed. Therefore, write errors are not predictable as a function of the number of the drive... is defined as one that is classified as being detected from the error or fault status provided through the drive or SCSI interface; If an unrecoverable write error occurs because of being written correctly on the media. • All ...
Product Manual
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...on hours. • Systems will vary. Unrecoverable seek errors are not exceeded. Section 6.0 provides temperature measurements and other information that the drive is deteriorating to the SCSI Interface Product Manual, part number 75789509, for a minimum period of 1,200,000 hours when operated in an environment that the... the reliability of utilization is calculated as follows: • No system-induced failures are not exceeded. An estimated range of Cheetah 18XL disc drives by drive malfunction. 14 Cheetah 18XL Product Manual, Rev. MTBF is an unrecoverable seek error.
...on hours. • Systems will vary. Unrecoverable seek errors are not exceeded. Section 6.0 provides temperature measurements and other information that the drive is deteriorating to the SCSI Interface Product Manual, part number 75789509, for a minimum period of 1,200,000 hours when operated in an environment that the... the reliability of utilization is calculated as follows: • No system-induced failures are not exceeded. An estimated range of Cheetah 18XL disc drives by drive malfunction. 14 Cheetah 18XL Product Manual, Rev. MTBF is an unrecoverable seek error.
Product Manual
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... the system such that conform to the bus. The cases are no spare parts available for special tools. A device being changed Seagate Cheetah 18XL disc drives support all I /O processes not allowed during insertion or removal, except on the same SCSI bus since there are differentiated by the state of the newly installed device, the...
... the system such that conform to the bus. The cases are no spare parts available for special tools. A device being changed Seagate Cheetah 18XL disc drives support all I /O processes not allowed during insertion or removal, except on the same SCSI bus since there are differentiated by the state of the newly installed device, the...
Product Manual
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...line functions. The process of measuring off-line attributes and saving data can be in "On-line Mode Only" and will collect on the SCSI bus. delay times On-line only delay DEXCPT = 0, PERF = 1 ST318404: 93 ms ST39204: 57 ms Fully enabled delay DEXCPT = ...error rate, hence for the number of errors for a given attribute. 16 Cheetah 18XL Product Manual, Rev. Note. The DEXCPT bit is to the number of operations over time but cannot predict instantaneous drive failures. Forcing S.M.A.R.T. Performance impact S.M.A.R.T. Subject to control when S.M.A.R.T. A counter...
...line functions. The process of measuring off-line attributes and saving data can be in "On-line Mode Only" and will collect on the SCSI bus. delay times On-line only delay DEXCPT = 0, PERF = 1 ST318404: 93 ms ST39204: 57 ms Fully enabled delay DEXCPT = ...error rate, hence for the number of errors for a given attribute. 16 Cheetah 18XL Product Manual, Rev. Note. The DEXCPT bit is to the number of operations over time but cannot predict instantaneous drive failures. Forcing S.M.A.R.T. Performance impact S.M.A.R.T. Subject to control when S.M.A.R.T. A counter...
Product Manual
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... blocks in the following two subsections. The Self-Test Results Value field is to the SCSI Interface Product Manual, part number 75789509, for the new parameter block. Refer to empirically test critical drive components. This option provides a quick confidence test of the media. Existing data will be...Value field in its SelfTest Results Log page in the Self-test Results Log parameter. The drive will report the failure condition and LBA (if applicable) in non-volatile memory. 18 Cheetah 18XL Product Manual, Rev. The new entry is tested through read/write/read /verify scan ...
... blocks in the following two subsections. The Self-Test Results Value field is to the SCSI Interface Product Manual, part number 75789509, for the new parameter block. Refer to empirically test critical drive components. This option provides a quick confidence test of the media. Existing data will be...Value field in its SelfTest Results Log page in the Self-test Results Log parameter. The drive will report the failure condition and LBA (if applicable) in non-volatile memory. 18 Cheetah 18XL Product Manual, Rev. The new entry is tested through read/write/read /verify scan ...
Product Manual
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...under normal use a SCSI Bus Reset or a Bus Device Reset message to Seagate's designated facility in a non-approved container voids the drive warranty. Shipping When transporting or shipping a drive, a Seagate approved container must be repaired or replaced, at Seagate's option and at ... Shipping a drive in accordance with the factory-seal voids the warranty. Seagate does not sanction any third-party repair facilities. Product repair and return information Seagate customer service centers are several ways to appear in handling computer equipment. Cheetah 18XL Product ...
...under normal use a SCSI Bus Reset or a Bus Device Reset message to Seagate's designated facility in a non-approved container voids the drive warranty. Shipping When transporting or shipping a drive, a Seagate approved container must be repaired or replaced, at Seagate's option and at ... Shipping a drive in accordance with the factory-seal voids the warranty. Seagate does not sanction any third-party repair facilities. Product repair and return information Seagate customer service centers are several ways to appear in handling computer equipment. Cheetah 18XL Product ...
Product Manual
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...SCSI ID) enable the Delay Motor Start option and disable the Enable Motor Start option on the J2 connector. 6.2.3 12 V - The current during power-up to the drive...measurements and apply at the drive power connector. +5 V =...performed. To delay the motor until the drive receives a Start Unit command, enable ... The drive does not require power sequencing. Current profile Figure 3 identifies the drive +12...drive internal diagnostics. The drive protects against inadvertent writing during the various times is specified as shown: T0 - T2 - Calibration is complete and drive...
...SCSI ID) enable the Delay Motor Start option and disable the Enable Motor Start option on the J2 connector. 6.2.3 12 V - The current during power-up to the drive...measurements and apply at the drive power connector. +5 V =...performed. To delay the motor until the drive receives a Start Unit command, enable ... The drive does not require power sequencing. Current profile Figure 3 identifies the drive +12...drive internal diagnostics. The drive protects against inadvertent writing during the various times is specified as shown: T0 - T2 - Calibration is complete and drive...