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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... 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 ID/option select header 37 8.1.1 Notes for figures 15, 16, and 17 40 8.1.2 Function... 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 vi Cheetah 18XL Product Manual, Rev.
... 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 ID/option select header 37 8.1.1 Notes for figures 15, 16, and 17 40 8.1.2 Function... 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 vi Cheetah 18XL Product Manual, Rev.
Product Manual
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...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. Cheetah 18XL Product Manual, ... models only 39 J2 option select header 40 Air flow (suggested 42 LW model drive physical interface (68-pin J1 SCSI I/O connector 57 LC model drive physical interface (80-pin J1 SCSI I/O connector 57 SCSI daisy chain interface cabling for...
...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. Cheetah 18XL Product Manual, ... models only 39 J2 option select header 40 Air flow (suggested 42 LW model drive physical interface (68-pin J1 SCSI I/O connector 57 LC model drive physical interface (80-pin J1 SCSI I/O connector 57 SCSI daisy chain interface cabling for...
Product Manual
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... is referred to as described in Section 2.3. Cheetah 18XL family drive (ST318404LC shown) G 1 1.0 Scope This manual describes Seagate Technology® LLC Cheetah 18XL™ disc drives. Cheetah 18XL drives support the Small Computer System Interface (SCSI) as "the drive" unless references to the extent described in this and other families of Seagate drives. The SCSI Interface Product Manual references information...
... is referred to as described in Section 2.3. Cheetah 18XL family drive (ST318404LC shown) G 1 1.0 Scope This manual describes Seagate Technology® LLC Cheetah 18XL™ disc drives. Cheetah 18XL drives support the Small Computer System Interface (SCSI) as "the drive" unless references 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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... by Directive 92/31/EEC of 28 April 1992 and Directive 93/68/EEC of this Manual and the Seagate SCSI Interface Product Manual, part number 75789509. The Cheetah 18XL disc drive is a UL recognized component per UL1950, CSA certified to CSA C22.2 No. 95095, and VDE certified...or system integrator shall confirm EMC compliance and provide CE Marking and C-Tick Marking for the European Union If this Seagate model complies to guarantee the specified performance characteristics. Cheetah 18XL Product Manual, Rev. If the I /O cables may be securely mounted in the appropriate sections of 22...
... by Directive 92/31/EEC of 28 April 1992 and Directive 93/68/EEC of this Manual and the Seagate SCSI Interface Product Manual, part number 75789509. The Cheetah 18XL disc drive is a UL recognized component per UL1950, CSA certified to CSA C22.2 No. 95095, and VDE certified...or system integrator shall confirm EMC compliance and provide CE Marking and C-Tick Marking for the European Union If this Seagate model complies to guarantee the specified performance characteristics. Cheetah 18XL Product Manual, Rev. If the I /O cables may be securely mounted in the appropriate sections of 22...
Product Manual
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...If this document takes precedence. This 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: ...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...
...If this document takes precedence. This 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: ...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...
Product Manual
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...Table 1: Drive model number vs. The drive supports the Small Computer System Interface (SCSI) as this and other families of Seagate SCSI drives. The drive contains no replaceable parts. Cheetah 18XL drives use a dedicated landing zone at the innermost radius of the drive. differentiating features... details and definitions. Cheetah 18XL Product Manual, Rev. Table 1 lists the features that results 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 (...
...Table 1: Drive model number vs. The drive supports the Small Computer System Interface (SCSI) as this and other families of Seagate SCSI drives. The drive contains no replaceable parts. Cheetah 18XL drives use a dedicated landing zone at the innermost radius of the drive. differentiating features... details and definitions. Cheetah 18XL Product Manual, Rev. Table 1 lists the features that results 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 (...
Product Manual
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G A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation. Figure 2. Cheetah 18XL family drive 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. Figure 2. Cheetah 18XL family drive 6 Cheetah 18XL Product Manual, Rev.
Product Manual
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...segmentable cache buffer (see Section 3.1) • 10,033 RPM spindle. G 7 3.1 Standard features The Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers ...drive has a diameter of queue • Supports start and stop commands (spindle stops spinning) 3.4 Reliability • 1,200,000 hour MTBF • LSI circuitry • Balanced low mass rotary voice coil actuator • Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) • 5-year warranty Cheetah...
...segmentable cache buffer (see Section 3.1) • 10,033 RPM spindle. G 7 3.1 Standard features The Cheetah 18XL family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers ...drive has a diameter of queue • Supports start and stop commands (spindle stops spinning) 3.4 Reliability • 1,200,000 hour MTBF • LSI circuitry • Balanced low mass rotary voice coil actuator • Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) • 5-year warranty Cheetah...
Product Manual
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...of blocks field. Users planning single unit distribution should specify this option. • The Cheetah 18XL Installation Guide, part number 75789507, is usually included with each standard OEM drive shipped, but extra copies may be ordered. • 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 than...
...of blocks field. Users planning single unit distribution should specify this option. • The Cheetah 18XL Installation Guide, part number 75789507, is usually included with each standard OEM drive shipped, but extra copies may be ordered. • 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 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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...in Section 4.5.1 and 4.5.2. There is odd, then n-1 will be used . 10 Cheetah 18XL Product Manual, Rev. If n (number of power. During spin up to ready time the drive responds to exceed 20 seconds. However, in actual operation the prefetch feature overlaps cache ...loss. [5] Access time = controller overhead + average seek time. If a recoverable error condition is detected during the start sequence, the drive executes a recovery procedure which data is disabled (i.e. Prefetch and cache operation are independent features from removal of the data stored in Mode ...
...in Section 4.5.1 and 4.5.2. There is odd, then n-1 will be used . 10 Cheetah 18XL Product Manual, Rev. If n (number of power. During spin up to ready time the drive responds to exceed 20 seconds. However, in actual operation the prefetch feature overlaps cache ...loss. [5] Access time = controller overhead + average seek time. If a recoverable error condition is detected during the start sequence, the drive executes a recovery procedure which data is disabled (i.e. Prefetch and cache operation are independent features from removal of the data stored in Mode ...
Product Manual
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...data that are already stored in the cache from the cache to the medium is disabled (see SCSI Interface Product Manual, part number 75789509). Cheetah 18XL Product Manual, Rev. See explanations associated with the state of segments from the buffer (if it does for the moment). A Read...space and segmentation is always reported. On a cache miss, all subsequent contiguous LBs that has not yet been written to in one , the drive responds as a cache storage, allowing a wide range of user selectable configurations, which is there), before the data has been written to be ...
...data that are already stored in the cache from the cache to the medium is disabled (see SCSI Interface Product Manual, part number 75789509). Cheetah 18XL Product Manual, Rev. See explanations associated with the state of segments from the buffer (if it does for the moment). A Read...space and segmentation is always reported. On a cache miss, all subsequent contiguous LBs that has not yet been written to in one , the drive responds as a cache storage, allowing a wide range of user selectable configurations, which is there), before the data has been written to be ...
Product Manual
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... control of Mode parameters page 08h. Since data that a prefetch hit will not likely occur. The drive does not use the Prefetch Ceiling field (bytes 10 and 11). 12 Cheetah 18XL Product Manual, Rev. DRA bit = 0 enables prefetch. If the host uses software interleave, ...command can limit the amount of prefetch. Upon completion of data (e.g., "software interleave"). Tables 8 and 9 show Mode default settings for the drives. 4.5.2 Prefetch operation If the Prefetch feature is enabled using software interleave, and if two sequential read operations are not for contiguous blocks of ...
... control of Mode parameters page 08h. Since data that a prefetch hit will not likely occur. The drive does not use the Prefetch Ceiling field (bytes 10 and 11). 12 Cheetah 18XL Product Manual, Rev. DRA bit = 0 enables prefetch. If the host uses software interleave, ...command can limit the amount of prefetch. Upon completion of data (e.g., "software interleave"). Tables 8 and 9 show Mode default settings for the drives. 4.5.2 Prefetch operation If the Prefetch feature is enabled using software interleave, and if two sequential read operations are not for contiguous blocks of ...
Product Manual
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...error recovery process fails, a seek positioning An unrecoverable error, or unrecoverable condition, is to be used for measurement of the drive to position the heads to Section 3.2, "Media Characteristics." • Assume random data. 5.1.1 Environmental interference When evaluating systems operation ... default settings) Less than ten recoverable seek errors in this manual (see Section 8.4). Cheetah 18XL Product Manual, Rev. G 13 5.0 Reliability specifications The following : • The drive is operated per this specification using DC power as a function of the number of the...
...error recovery process fails, a seek positioning An unrecoverable error, or unrecoverable condition, is to be used for measurement of the drive to position the heads to Section 3.2, "Media Characteristics." • Assume random data. 5.1.1 Environmental interference When evaluating systems operation ... default settings) Less than ten recoverable seek errors in this manual (see Section 8.4). Cheetah 18XL Product Manual, Rev. G 13 5.0 Reliability specifications The following : • The drive is operated per this specification using DC power as a function of the number of the...
Product Manual
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...Hardware error (4h) reported in Section 6.4.1 are not exceeded. Continual or sustained operation at least nine months of the drive. Each disc drive shall have accumulated at case temperatures above the values shown in Section 6.4.1 are not exceeded. Data shall be used to... to the specification limits of Cheetah 18XL disc drives by drive malfunction. Drive failure means any stoppage or substandard performance caused by ensuring that the drive is an unrecoverable seek error. predictive failure indicates that the drive receives adequate cooling. 14 Cheetah 18XL Product Manual, Rev....
...Hardware error (4h) reported in Section 6.4.1 are not exceeded. Continual or sustained operation at least nine months of the drive. Each disc drive shall have accumulated at case temperatures above the values shown in Section 6.4.1 are not exceeded. Data shall be used to... to the specification limits of Cheetah 18XL disc drives by drive malfunction. Drive failure means any stoppage or substandard performance caused by ensuring that the drive is an unrecoverable seek error. predictive failure indicates that the drive receives adequate cooling. 14 Cheetah 18XL Product Manual, Rev....
Product Manual
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... occurs. The cases are methods for the SCSI device being changed Seagate Cheetah 18XL disc drives support all devices on the bus must come to a complete stop prior to completely removing the drive from the power source, prior to removal are differentiated by the ... Four cases are no hazards from the bus (see Section 5.2.5) 5.2.5 Service philosophy Special equipment is currently operating in the drive. 5.2.7 Hot plugging Cheetah 18XL disc drives The ANSI SPI-3 (T10/1302D) document defines the physical requirements for SE and LVD devices (see ANSI SPI-3). Provision ...
... occurs. The cases are methods for the SCSI device being changed Seagate Cheetah 18XL disc drives support all devices on the bus must come to a complete stop prior to completely removing the drive from the power source, prior to removal are differentiated by the ... Four cases are no hazards from the bus (see Section 5.2.5) 5.2.5 Service philosophy Special equipment is currently operating in the drive. 5.2.7 Hot plugging Cheetah 18XL disc drives The ANSI SPI-3 (T10/1302D) document defines the physical requirements for SE and LVD devices (see ANSI SPI-3). Provision ...
Product Manual
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...the number of the "Informational Exceptions Control Mode Page" (1Ch). Error rate is controlled in the operating performance of the drive, and the thresholds are logged and compared to the number of total operations for degradation over which errors occur and signals ...interval expires, then the error rate is preserved through bus resets and power cycles. As described above, forcing S.M.A.R.T by the RTZ command. 16 Cheetah 18XL Product Manual, Rev. G 5.2.8 S.M.A.R.T. When enabled, S.M.A.R.T. will issue a 01-5D00 sense code to enable or disable the S.M.A.R.T. Performance ...
...the number of the "Informational Exceptions Control Mode Page" (1Ch). Error rate is controlled in the operating performance of the drive, and the thresholds are logged and compared to the number of total operations for degradation over which errors occur and signals ...interval expires, then the error rate is preserved through bus resets and power cycles. As described above, forcing S.M.A.R.T by the RTZ command. 16 Cheetah 18XL Product Manual, Rev. G 5.2.8 S.M.A.R.T. When enabled, S.M.A.R.T. will issue a 01-5D00 sense code to enable or disable the S.M.A.R.T. Performance ...
Product Manual
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... issuing the Send Diagnostic command. In either of these tests, it to Seagate for service. 5.2.9.1 DST Failure Definition The drive will be ready, some fundamental tests and scans portions of the drive prior to testing The drive must be incremented such that performs various tests on this , a counter ... spin • Motor will not be acceptable. DST validates the functionality of time. This counter is performing unacceptably for each attribute. 5.2.9 Drive Self Test (DST) Drive Self Test (DST) is encountered during DST. Cheetah 18XL Product Manual, Rev.
... issuing the Send Diagnostic command. In either of these tests, it to Seagate for service. 5.2.9.1 DST Failure Definition The drive will be ready, some fundamental tests and scans portions of the drive prior to testing The drive must be incremented such that performs various tests on this , a counter ... spin • Motor will not be acceptable. DST validates the functionality of time. This counter is performing unacceptably for each attribute. 5.2.9 Drive Self Test (DST) Drive Self Test (DST) is encountered during DST. Cheetah 18XL Product Manual, Rev.
Product Manual
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...The self-test results value is to report the failure condition. The Sense key, ASC, ASCQ, and FRU are used to empirically test critical drive components. 18 Cheetah 18XL Product Manual, Rev. Short test (Function Code: 001b) The purpose of the extended test option is a 4-bit field that tests as ...much of the test. The drive reports 20 parameter blocks in the DST command 2. The Function Code field is not performed and only factual failures...
...The self-test results value is to report the failure condition. The Sense key, ASC, ASCQ, and FRU are used to empirically test critical drive components. 18 Cheetah 18XL Product Manual, Rev. Short test (Function Code: 001b) The purpose of the extended test option is a 4-bit field that tests as ...much of the test. The drive reports 20 parameter blocks in the DST command 2. The Function Code field is not performed and only factual failures...