Product Manual
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Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of their owners. © 2001 Seagate Technology LLC All rights reserved Publication number: 75789506, Rev. Other product names are either trademarks or registered trademarks ...of this publication may be reproduced in any form without notice, product offerings or specifications. No part of Seagate Technology LLC. Seagate reserves the right to change, without written permission of Seagate Technology LLC. G October 2001 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of...
Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of their owners. © 2001 Seagate Technology LLC All rights reserved Publication number: 75789506, Rev. Other product names are either trademarks or registered trademarks ...of this publication may be reproduced in any form without notice, product offerings or specifications. No part of Seagate Technology LLC. Seagate reserves the right to change, without written permission of Seagate Technology LLC. G October 2001 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of...
Product Manual
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... characteristics 7 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 ...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...
... characteristics 7 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 ...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...
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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... 57 SCSI daisy 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...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...
... 57 SCSI daisy 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...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...
Product Manual
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... extent described in this manual. From this point on in this and other families of Seagate drives. Figure 1. The SCSI Interface Product Manual references information from the documents listed in the ANSI SCSI interface specifications to individual models are necessary. Cheetah 18XL family drive (ST318404LC shown) Cheetah 18XL Product Manual, Rev. G 1 1.0 Scope This manual describes...
... extent described in this manual. From this point on in this and other families of Seagate drives. Figure 1. The SCSI Interface Product Manual references information from the documents listed in the ANSI SCSI interface specifications to individual models are necessary. Cheetah 18XL family drive (ST318404LC shown) Cheetah 18XL Product Manual, Rev. G 1 1.0 Scope This manual describes...
Product Manual
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... the shields grounded to the enclosure and to the host controller. 2.1.2 Electromagnetic susceptibility As a component assembly, the drive is not required to meet the requirements of Section 8.4. 2.1 Standards The Cheetah 18XL family complies with Seagate standards as a subassembly and is capable of meeting the Class B limits of the FCC Rules and Regulations of...
... the shields grounded to the enclosure and to the host controller. 2.1.2 Electromagnetic susceptibility As a component assembly, the drive is not required to meet the requirements of Section 8.4. 2.1 Standards The Cheetah 18XL family complies with Seagate standards as a subassembly and is capable of meeting the Class B limits of the FCC Rules and Regulations of...
Product Manual
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...drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for Class B products. • EUT name (model numbers): ST318404LC, ST318404LW, 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... (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 ...
...drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for Class B products. • EUT name (model numbers): ST318404LC, ST318404LW, 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... (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 ...
Product Manual
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...with the required hardware requirements of Seagate SCSI drives. This exploded view is used). The drive automatically goes to the landing zone when power is applied to the extent described in the data zone. Cheetah 18XL Product Manual, Rev. The drive supports the Small Computer System ...Interface (SCSI) as this and other families 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...
...with the required hardware requirements of Seagate SCSI drives. This exploded view is used). The drive automatically goes to the landing zone when power is applied to the extent described in the data zone. Cheetah 18XL Product Manual, Rev. The drive supports the Small Computer System ...Interface (SCSI) as this and other families 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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6 Cheetah 18XL Product Manual, Rev. Cheetah 18XL family drive Figure 2. G A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation.
6 Cheetah 18XL Product Manual, Rev. Cheetah 18XL family drive Figure 2. G A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation.
Product Manual
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...adjustment required • Dedicated head landing zone • Embedded servo design • Self diagnostics performed when power is applied to the drive • 1:1 Interleave • Zoned bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic ...SCSI interface • Programmable multi-segmentable cache buffer (see Section 3.1) • 10,033 RPM spindle. Cheetah 18XL Product Manual, Rev. G 7 3.1 Standard features The Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers ...
...adjustment required • Dedicated head landing zone • Embedded servo design • Self diagnostics performed when power is applied to the drive • 1:1 Interleave • Zoned bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic ...SCSI interface • Programmable multi-segmentable cache buffer (see Section 3.1) • 10,033 RPM spindle. Cheetah 18XL Product Manual, Rev. G 7 3.1 Standard features The Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers ...
Product Manual
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... list block descriptor number of LBAs is usually included with each standard OEM drive shipped, but extra copies may be ordered. Refer to provide maximum protection against transit damage. 8 Cheetah 18XL Product Manual, Rev. Users having the necessary equipment may be ordered.... 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 than...
... list block descriptor number of LBAs is usually included with each standard OEM drive shipped, but extra copies may be ordered. Refer to provide maximum protection against transit damage. 8 Cheetah 18XL Product Manual, Rev. Users having the necessary equipment may be ordered.... 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 than...
Product Manual
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...) r/min (+0.5%) msec 4.2 SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply 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...
...) r/min (+0.5%) msec 4.2 SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply 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...
Product Manual
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... drive. 4.4 Prefetch/multi-segmented cache control The drive ...drive buffer storage space when it is disabled (i.e. Stop time is odd, then n-1 will be used to command the drive...Motor Start Command has been received the drive becomes ready for normal operations within ...drive family are given in actual operation ...the drive executes...voltage has been applied, the drive becomes ready within 16 seconds...are independent features from removal of drives. [3] Assumes no errors and ...in cache operations. The drive maintains a table of logical...to ready time the drive responds to data = controller ...
... drive. 4.4 Prefetch/multi-segmented cache control The drive ...drive buffer storage space when it is disabled (i.e. Stop time is odd, then n-1 will be used to command the drive...Motor Start Command has been received the drive becomes ready for normal operations within ...drive family are given in actual operation ...the drive executes...voltage has been applied, the drive becomes ready within 16 seconds...are independent features from removal of drives. [3] Assumes no errors and ...in cache operations. The drive maintains a table of logical...to ready time the drive responds to data = controller ...
Product Manual
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... 14 and 15) no new segment size is still used as a by the drive that are already stored in any integer number of the operation. If a size specification is always reported. Cheetah 18XL Product Manual, Rev. If read functions. The retrieved data merely passes through some... buffer segment on a write command after the data has been transferred into the beginning of a drive buffer storage area where the data to the ...
... 14 and 15) no new segment size is still used as a by the drive that are already stored in any integer number of the operation. If a size specification is always reported. Cheetah 18XL Product Manual, Rev. If read functions. The retrieved data merely passes through some... buffer segment on a write command after the data has been transferred into the beginning of a drive buffer storage area where the data to the ...
Product Manual
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...and 9 show Mode default settings for the drives. 4.5.2 Prefetch operation If the Prefetch feature ...not using Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - The drive does not use the Prefetch Ceiling field (bytes 10 and 11). DRA bit = 0 ...Synchronize Cache command, all cached write 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 a...buffer segment(s), the host can be used to force the drive to write all data received from the buffer to the host on ...
...and 9 show Mode default settings for the drives. 4.5.2 Prefetch operation If the Prefetch feature ...not using Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - The drive does not use the Prefetch Ceiling field (bytes 10 and 11). DRA bit = 0 ...Synchronize Cache command, all cached write 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 a...buffer segment(s), the host can be used to force the drive to write all data received from the buffer to the host on ...
Product Manual
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... as being detected from the error or fault status provided through the drive or SCSI interface; After detecting an initial seek error, the drive automatically performs an error recovery process. Cheetah 18XL Product Manual, Rev. G 13 5.0 Reliability specifications The following : • The drive is to be verified as defined in this specification assume the...
... as being detected from the error or fault status provided through the drive or SCSI interface; After detecting an initial seek error, the drive automatically performs an error recovery process. Cheetah 18XL Product Manual, Rev. G 13 5.0 Reliability specifications The following : • The drive is to be verified as defined in this specification assume the...
Product Manual
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...; Systems will provide adequate cooling to the SCSI Interface Product Manual, part number 75789509, for a minimum period of Cheetah 18XL disc drives by drive malfunction. A S.M.A.R.T. predictive failure indicates that ensures the case temperatures specified in Section 6.4.1, Table 3 are classified as ... recommended air-flow information. 5.2.1 Mean time between failure The production disc drive shall achieve an MTBF of drive failures in the period Estimated power-on hours (POH) for MTBF calculations. 14 Cheetah 18XL Product Manual, Rev. This is reported with a Medium error (...
...; Systems will provide adequate cooling to the SCSI Interface Product Manual, part number 75789509, for a minimum period of Cheetah 18XL disc drives by drive malfunction. A S.M.A.R.T. predictive failure indicates that ensures the case temperatures specified in Section 6.4.1, Table 3 are classified as ... recommended air-flow information. 5.2.1 Mean time between failure The production disc drive shall achieve an MTBF of drive failures in the period Estimated power-on hours (POH) for MTBF calculations. 14 Cheetah 18XL Product Manual, Rev. This is reported with a Medium error (...
Product Manual
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...that conform to Section 5.2.5. In order to avoid exceeding the limits stated in Section 6.4.4, "Shock and vibration" in the drive. 5.2.7 Hot plugging Cheetah 18XL disc drives The ANSI SPI-3 (T10/1302D) document defines the physical requirements for the SCSI device being inserted or removed shall be ...or removal, except on the bus shall have a useful service life of PCBs in erroneous bus operations. A device being changed Seagate Cheetah 18XL disc drives support all four hot plugging cases. It is not practical since the common mode voltages in low voltage differential (LVD) mode,...
...that conform to Section 5.2.5. In order to avoid exceeding the limits stated in Section 6.4.4, "Shock and vibration" in the drive. 5.2.7 Hot plugging Cheetah 18XL disc drives The ANSI SPI-3 (T10/1302D) document defines the physical requirements for the SCSI device being inserted or removed shall be ...or removal, except on the bus shall have a useful service life of PCBs in erroneous bus operations. A device being changed Seagate Cheetah 18XL disc drives support all four hot plugging cases. It is not practical since the common mode voltages in low voltage differential (LVD) mode,...
Product Manual
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...enable or disable the S.M.A.R.T. When the PERF bit is controlled in "On-line Mode Only" and will occur. Performance impact S.M.A.R.T. The drive will monitor specific attributes for the number of errors for a given attribute. A counter keeps track of the number of errors and the ...are optimized to control when S.M.A.R.T. process. will reset the timer. The operating mode of errors does Forcing S.M.A.R.T. S.M.A.R.T. 16 Cheetah 18XL Product Manual, Rev. As described above, forcing S.M.A.R.T by the Rezero Unit command will collect on the SCSI bus.
...enable or disable the S.M.A.R.T. When the PERF bit is controlled in "On-line Mode Only" and will occur. Performance impact S.M.A.R.T. The drive will monitor specific attributes for the number of errors for a given attribute. A counter keeps track of the number of errors and the ...are optimized to control when S.M.A.R.T. process. will reset the timer. The operating mode of errors does Forcing S.M.A.R.T. S.M.A.R.T. 16 Cheetah 18XL Product Manual, Rev. As described above, forcing S.M.A.R.T by the Rezero Unit command will collect on the SCSI bus.
Product Manual
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...Cheetah 18XL Product Manual, Rev. G 17 not exceed the threshold before issuing the Send Diagnostic command. signals predictive failures when the drive is performing unacceptably for each attribute. 5.2.9 Drive Self Test (DST) Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive... section provides all of the information necessary to implement the DST function on the drive and scans every logical block address (LBA) of the drive prior to Seagate for each attribute is acceptable. The following conditions: • Motor will not ...
...Cheetah 18XL Product Manual, Rev. G 17 not exceed the threshold before issuing the Send Diagnostic command. signals predictive failures when the drive is performing unacceptably for each attribute. 5.2.9 Drive Self Test (DST) Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive... section provides all of the information necessary to implement the DST function on the drive and scans every logical block address (LBA) of the drive prior to Seagate for each attribute is acceptable. The following conditions: • Motor will not ...