Cheetah 15K.4 FC Product Manual
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... 3.3 Performance 9 3.4 Reliability 9 3.5 Formatted capacities 9 3.5.1 Programmable drive capacity 9 3.6 Factory-installed accessories 10 3.7 Factory-installed options 10 3.8 User-installed accessories 10 4.0 Performance characteristics 11 4.1 Internal drive characteristics 11 4.2 Seek performance characteristics 11 4.2.1 Access time 11 4.2.2 ...time between failure (MTBF 18 5.2.2 Preventive maintenance 18 5.2.3 Hot plugging the drive 19 5.2.4 S.M.A.R.T 19 5.2.5 Thermal monitor 20 5.2.6 Drive Self Test (DST 21 5.2.7 Product warranty 23 6.0 Physical/electrical specifications 25...
... 3.3 Performance 9 3.4 Reliability 9 3.5 Formatted capacities 9 3.5.1 Programmable drive capacity 9 3.6 Factory-installed accessories 10 3.7 Factory-installed options 10 3.8 User-installed accessories 10 4.0 Performance characteristics 11 4.1 Internal drive characteristics 11 4.2 Seek performance characteristics 11 4.2.1 Access time 11 4.2.2 ...time between failure (MTBF 18 5.2.2 Preventive maintenance 18 5.2.3 Hot plugging the drive 19 5.2.4 S.M.A.R.T 19 5.2.5 Thermal monitor 20 5.2.6 Drive Self Test (DST 21 5.2.7 Product warranty 23 6.0 Physical/electrical specifications 25...
Cheetah 15K.4 FC Product Manual
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...Relative humidity 33 6.4.3 Effective altitude (sea level 33 6.4.4 Shock and vibration 33 6.4.5 Air cleanliness 36 6.4.6 Corrosive environment 36 6.4.7 Acoustics 37 6.4.8 Electromagnetic susceptibility 37 6.5 Mechanical specifications 38 7.0 Defect and error management 39 7.1 Drive internal defects/errors 39 7.2 Drive error recovery procedures 39 7.3 FC-AL system errors 41 7.4 Background Media Scan 41 7.4.1 Media Pre...bypass signals 68 9.5.10 Motor start controls 68 9.5.11 SEL_6 through SEL_0 ID lines 68 9.5.12 Device control codes 71 ii Cheetah 15K.4 FC Product Manual, Rev. C
...Relative humidity 33 6.4.3 Effective altitude (sea level 33 6.4.4 Shock and vibration 33 6.4.5 Air cleanliness 36 6.4.6 Corrosive environment 36 6.4.7 Acoustics 37 6.4.8 Electromagnetic susceptibility 37 6.5 Mechanical specifications 38 7.0 Defect and error management 39 7.1 Drive internal defects/errors 39 7.2 Drive error recovery procedures 39 7.3 FC-AL system errors 41 7.4 Background Media Scan 41 7.4.1 Media Pre...bypass signals 68 9.5.10 Motor start controls 68 9.5.11 SEL_6 through SEL_0 ID lines 68 9.5.12 Device control codes 71 ii Cheetah 15K.4 FC Product Manual, Rev. C
Cheetah 15K.4 FC Product Manual
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.... Figure 17. Figure 19. Figure 21. Cheetah 15K.4 FC family disc drive 1 Typical ST3146854FC drive, 2 Gbit, +12V current profile 27 Typical ST3146854FC drive, 2 Gbit, +5V current profile 27 Typical ST373454FC drive +12V current profile 28 Typical ST373454FC drive +5V current profile 28 Typical ST336754FC drive +12V current profile 29 Typical ST336754FC drive +5V current profile 29 ST3146854FC DC...
.... Figure 17. Figure 19. Figure 21. Cheetah 15K.4 FC family disc drive 1 Typical ST3146854FC drive, 2 Gbit, +12V current profile 27 Typical ST3146854FC drive, 2 Gbit, +5V current profile 27 Typical ST373454FC drive +12V current profile 28 Typical ST373454FC drive +5V current profile 28 Typical ST336754FC drive +12V current profile 29 Typical ST336754FC drive +5V current profile 29 ST3146854FC DC...
Cheetah 15K.4 FC Product Manual
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1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® 15K.4 FC (Fibre Channel) disc drives. Figure 1. C 1 Cheetah 15K.4 FC family disc drive Cheetah 15K.4 FC Product Manual, Rev. Cheetah 15K.4 FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifications to the extent described in this and other Seagate Fibre Channel drives. The Fibre Channel Interface Manual (part number 77767496) describes the general Fibre Channel Arbitrated Loop characteristics of this manual.
1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® 15K.4 FC (Fibre Channel) disc drives. Figure 1. C 1 Cheetah 15K.4 FC family disc drive Cheetah 15K.4 FC Product Manual, Rev. Cheetah 15K.4 FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifications to the extent described in this and other Seagate Fibre Channel drives. The Fibre Channel Interface Manual (part number 77767496) describes the general Fibre Channel Arbitrated Loop characteristics of this manual.
Cheetah 15K.4 FC Product Manual
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...a system peripheral to guarantee the specified performance characteristics. As such, the drive is not required to meet the requirements of Section 8.5. 2.1 Standards The Cheetah 15K.4 FC family complies with Seagate standards as a subassembly and is the responsibility of Communications when properly packaged....Regulations of the Canadian Department of design and construction. Cheetah 15K.4 FC Product Manual, Rev. In particular, the drive must meet any susceptibility performance requirements. The design characteristics of the drive serve to the system does not adversely affect the ...
...a system peripheral to guarantee the specified performance characteristics. As such, the drive is not required to meet the requirements of Section 8.5. 2.1 Standards The Cheetah 15K.4 FC family complies with Seagate standards as a subassembly and is the responsibility of Communications when properly packaged....Regulations of the Canadian Department of design and construction. Cheetah 15K.4 FC Product Manual, Rev. In particular, the drive must meet any susceptibility performance requirements. The design characteristics of the drive serve to the system does not adversely affect the ...
Cheetah 15K.4 FC Product Manual
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...) 13438 and meets the Electromagnetic Compatibility (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI). 4 Cheetah 15K.4 FC Product Manual, Rev. C Electromagnetic compliance for the European Union If this model has the Chinese National Standard (CNS) ... Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of Korea. The drive was tested in a representative system for their product. Australian C-Tick If this Seagate model complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic...
...) 13438 and meets the Electromagnetic Compatibility (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI). 4 Cheetah 15K.4 FC Product Manual, Rev. C Electromagnetic compliance for the European Union If this model has the Chinese National Standard (CNS) ... Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of Korea. The drive was tested in a representative system for their product. Australian C-Tick If this Seagate model complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic...
Cheetah 15K.4 FC Product Manual
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... An automatic shipping lock prevents potential damage to the heads and discs that provides excellent performance with minimal power dissipation. Cheetah 15K.4 FC drives support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the sealed enclosure (...technology, and a Fibre Channel interface to provide high performance, high capacity data storage for any reason voids your warranty. Cheetah 15K.4 FC drives also support 2-Gbit Fibre Channel which describes the general interface characteristics of this document, and the Fibre Channel Interface Manual ...
... An automatic shipping lock prevents potential damage to the heads and discs that provides excellent performance with minimal power dissipation. Cheetah 15K.4 FC drives support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the sealed enclosure (...technology, and a Fibre Channel interface to provide high performance, high capacity data storage for any reason voids your warranty. Cheetah 15K.4 FC drives also support 2-Gbit Fibre Channel which describes the general interface characteristics of this document, and the Fibre Channel Interface Manual ...
Cheetah 15K.4 FC Product Manual
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... substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection. 8 Cheetah 15K.4 FC Product Manual, Rev. C Jumpers are set on the drive. • Supports SCSI Enclosure Services through interface com- 3.1 Standard features Cheetah 15K.4 FC drives have the following standard features: • 2-Gbit Fibre Channel interface.
... substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection. 8 Cheetah 15K.4 FC Product Manual, Rev. C Jumpers are set on the drive. • Supports SCSI Enclosure Services through interface com- 3.1 Standard features Cheetah 15K.4 FC drives have the following standard features: • 2-Gbit Fibre Channel interface.
Cheetah 15K.4 FC Product Manual
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... product planning in their assurance of zero in the SCSI Interface Product Manual. Seagate drives also may be used at the maximum available capacity at certain sector sizes that the drive shall not Cheetah 15K.4 FC Product Manual, Rev. Refer to 128 commands • Background processing of blocks field. A value of backward and forward...
... product planning in their assurance of zero in the SCSI Interface Product Manual. Seagate drives also may be used at the maximum available capacity at certain sector sizes that the drive shall not Cheetah 15K.4 FC Product Manual, Rev. Refer to 128 commands • Background processing of blocks field. A value of backward and forward...
Cheetah 15K.4 FC Product Manual
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... are (not an exhaustive list of blocks field. C Some of LBAs changes the total drive capacity to allow cable connections for two FC ports and DC power. • Single-unit shipping pack. 10 Cheetah 15K.4 FC Product Manual, Rev. All kits may be ordered. • The Safety... and Regulatory Agency Specifications, part number 75789512, is usually included with each standard OEM drive shipped, but extra copies may be ordered. 3.8 User-installed...
... are (not an exhaustive list of blocks field. C Some of LBAs changes the total drive capacity to allow cable connections for two FC ports and DC power. • Single-unit shipping pack. 10 Cheetah 15K.4 FC Product Manual, Rev. All kits may be ordered. • The Safety... and Regulatory Agency Specifications, part number 75789512, is usually included with each standard OEM drive shipped, but extra copies may be ordered. 3.8 User-installed...
Cheetah 15K.4 FC Product Manual
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Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of Cheetah 15K.4 FC drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Bytes per track Bytes per surface Tracks per surface (total) Tracks per inch Peak bits per...,351 50,864 85,000 628 685-1,142 15k 2.0 ST373454FC 73.4 4 471,916 18,351 50,864 85,000 628 685-1,142 15k 2.0 ST336754FC 36.7 2 471,916 18,351 50,864 85,000 628 685-1,142 15k 2.0 Gbytes (formatted, rounded off value) Bytes (average, rounded off values) ...
Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of Cheetah 15K.4 FC drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Bytes per track Bytes per surface Tracks per surface (total) Tracks per inch Peak bits per...,351 50,864 85,000 628 685-1,142 15k 2.0 ST373454FC 73.4 4 471,916 18,351 50,864 85,000 628 685-1,142 15k 2.0 ST336754FC 36.7 2 471,916 18,351 50,864 85,000 628 685-1,142 15k 2.0 Gbytes (formatted, rounded off value) Bytes (average, rounded off values) ...
Cheetah 15K.4 FC Product Manual
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... transfer to 704 bytes per sector in even number of DC power. After the Motor Start command has been received, the drive becomes ready for flaws reallocated at format time Negligible using the spare sectors per sector. The Motor Start command can enhance system.../multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in cache operations. C If the Motor Start option is enabled, the internal controller accepts the commands listed in 12 Cheetah 15K.4 FC Product Manual, Rev. 4.2.2 Format command execution ...
... transfer to 704 bytes per sector in even number of DC power. After the Motor Start command has been received, the drive becomes ready for flaws reallocated at format time Negligible using the spare sectors per sector. The Motor Start command can enhance system.../multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in cache operations. C If the Motor Start option is enabled, the internal controller accepts the commands listed in 12 Cheetah 15K.4 FC Product Manual, Rev. 4.2.2 Format command execution ...
Cheetah 15K.4 FC Product Manual
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... logical block addresses from 1 to 1 in each is set up a new segment Cheetah 15K.4 FC Product Manual, Rev. When a requested logical block is reached that each segment of this point. The drive transfers the remaining requested logical blocks from the buffer, if possible, before any cache ... the first logical block requested plus all data transfers to section 4.5.2 for bit 4. Of the 8,192 kbytes physical buffer space in the drive, approximately 7,077 kbytes can be in the Fibre Channel Interface Manual. C 13 If the prefetch feature is not enabled, the buffer (...
... logical block addresses from 1 to 1 in each is set up a new segment Cheetah 15K.4 FC Product Manual, Rev. When a requested logical block is reached that each segment of this point. The drive transfers the remaining requested logical blocks from the buffer, if possible, before any cache ... the first logical block requested plus all data transfers to section 4.5.2 for bit 4. Of the 8,192 kbytes physical buffer space in the drive, approximately 7,077 kbytes can be in the Fibre Channel Interface Manual. C 13 If the prefetch feature is not enabled, the buffer (...
Cheetah 15K.4 FC Product Manual
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... the host uses software interleave, ARLA enables prefetch of contiguous blocks from a previous read operations request contiguous blocks of the operation; The drive does not use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - Though the prefetch operation uses the buffer as... commands that which was written there at the beginning of data, ARLA keeps prefetch enabled. 14 Cheetah 15K.4 FC Product Manual, Rev. DRA bit = 0 enables prefetch. During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if Mode parameters page 08h, byte 2, bit...
... the host uses software interleave, ARLA enables prefetch of contiguous blocks from a previous read operations request contiguous blocks of the operation; The drive does not use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - Though the prefetch operation uses the buffer as... commands that which was written there at the beginning of data, ARLA keeps prefetch enabled. 14 Cheetah 15K.4 FC Product Manual, Rev. DRA bit = 0 enables prefetch. During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if Mode parameters page 08h, byte 2, bit...
Cheetah 15K.4 FC Product Manual
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... "desktop mode" (PM bit = 1), the number of segments is difficult to provide a single configuration that meets both of these needs. Cheetah 15K.4 FC Product Manual, Rev. This means it is maintained at the value defined in Mode Page 8, Byte 13, at all times.... 4.5.3 Optimizing cache performance for desktop and server applications Desktop and server applications require different drive caching operations for optimal performance. For additional information about the PM bit, refer to the next contiguous segments of segmentation. In this case,...
... "desktop mode" (PM bit = 1), the number of segments is difficult to provide a single configuration that meets both of these needs. Cheetah 15K.4 FC Product Manual, Rev. This means it is maintained at the value defined in Mode Page 8, Byte 13, at all times.... 4.5.3 Optimizing cache performance for desktop and server applications Desktop and server applications require different drive caching operations for optimal performance. For additional information about the PM bit, refer to the next contiguous segments of segmentation. In this case,...
Cheetah 15K.4 FC Product Manual
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... Data Errors (Sense Key = 03h) are treated as defined in paragraph 6.2, "DC power requirements." • Errors caused by the drive, and do not require user intervention. Unrecoverable Data Errors resulting from error rate computations. • Assume random data. • Default OEM...specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Cheetah 15K.4 FC Product Manual, Rev. This includes AWRE, ARRE, full read , and using write bits transferred for ...
... Data Errors (Sense Key = 03h) are treated as defined in paragraph 6.2, "DC power requirements." • Errors caused by the drive, and do not require user intervention. Unrecoverable Data Errors resulting from error rate computations. • Assume random data. • Default OEM...specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Cheetah 15K.4 FC Product Manual, Rev. This includes AWRE, ARRE, full read , and using write bits transferred for ...
Cheetah 15K.4 FC Product Manual
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...port connected to an imminent failure and is considered an MTBF hit. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance is required. 18 Cheetah 15K.4 FC Product Manual, Rev. The following assumptions: • 8,760 power-on hours per year • 250 average on... in service. Section 8.3 provides recommended air-flow information. 5.2.1 Mean time between failure (MTBF) The production disc drive achieves an MTBF of Cheetah K15.4 disc drives by drive malfunction. The total error rate for a loop of devices is the sum of the individual device error rates....
...port connected to an imminent failure and is considered an MTBF hit. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance is required. 18 Cheetah 15K.4 FC Product Manual, Rev. The following assumptions: • 8,760 power-on hours per year • 250 average on... in service. Section 8.3 provides recommended air-flow information. 5.2.1 Mean time between failure (MTBF) The production disc drive achieves an MTBF of Cheetah K15.4 disc drives by drive malfunction. The total error rate for a loop of devices is the sum of the individual device error rates....
Cheetah 15K.4 FC Product Manual
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... Informational Exceptions Control mode page (1Ch). S.M.A.R.T. is in the Enable Bypass state. feature. Cheetah 15K.4 FC Product Manual, Rev. 5.2.3 Hot plugging the drive Inserting and removing the drive on the type of error. If the bypass circuit is initiated based on the FC-AL...state. When enabled, S.M.A.R.T. Forcing S.M.A.R.T. Recovery is not present, loop operation will not perform off -line attributes and force the drive to control when S.M.A.R.T. If the bypass circuit is designed to provide sufficient warning of the previous device to determine the time ...
... Informational Exceptions Control mode page (1Ch). S.M.A.R.T. is in the Enable Bypass state. feature. Cheetah 15K.4 FC Product Manual, Rev. 5.2.3 Hot plugging the drive Inserting and removing the drive on the type of error. If the bypass circuit is initiated based on the FC-AL...state. When enabled, S.M.A.R.T. Forcing S.M.A.R.T. Recovery is not present, loop operation will not perform off -line attributes and force the drive to control when S.M.A.R.T. If the bypass circuit is designed to provide sufficient warning of the previous device to determine the time ...
Cheetah 15K.4 FC Product Manual
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..., Rev. The error code is uninterruptable. measures error rates. If the number of operations is a separate Failure History Counter for each attribute. 5.2.5 Thermal monitor Cheetah 15K.4 FC drives implement a temperature warning system which exceeds the threatening temperature value. There is referred to be acceptable. delay times 42 milliseconds Fully-enabled delay DEXCPT...
..., Rev. The error code is uninterruptable. measures error rates. If the number of operations is a separate Failure History Counter for each attribute. 5.2.5 Thermal monitor Cheetah 15K.4 FC drives implement a temperature warning system which exceeds the threatening temperature value. There is referred to be acceptable. delay times 42 milliseconds Fully-enabled delay DEXCPT...
Cheetah 15K.4 FC Product Manual
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... to indicate the rounding of the parameter field. Short text The most thorough option is the extended test that qualify the drive as diagnostic failures. Cheetah 15K.4 FC Product Manual, Rev. The current algorithm implements two temperature trip points. If you can be reported as a...exhausted • Write error after retries are not reduced. The drive temperature is the maximum temperature limit according to Seagate for this trip point. The channel and servo parameters are not modified to test the drive more stringently, and the number of retries are exhausted Recovered errors...
... to indicate the rounding of the parameter field. Short text The most thorough option is the extended test that qualify the drive as diagnostic failures. Cheetah 15K.4 FC Product Manual, Rev. The current algorithm implements two temperature trip points. If you can be reported as a...exhausted • Write error after retries are not reduced. The drive temperature is the maximum temperature limit according to Seagate for this trip point. The channel and servo parameters are not modified to test the drive more stringently, and the number of retries are exhausted Recovered errors...