Cheetah 15K.5 SAS Product Manual
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... LLC in the United States and/ or other countries. Actual quantities will vary based on operating environment and formatting. Seagate reserves the right to hard drive capacity. All other countries. Publication number: 100384784, Rev. Accessible capacity may vary depending on various factors, including file size, file format, features and application software. E ...
... LLC in the United States and/ or other countries. Actual quantities will vary based on operating environment and formatting. Seagate reserves the right to hard drive capacity. All other countries. Publication number: 100384784, Rev. Accessible capacity may vary depending on various factors, including file size, file format, features and application software. E ...
Cheetah 15K.5 SAS Product Manual
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... 5.1.3 Seek errors 16 5.1.4 Interface errors 16 5.2 Reliability and service 16 5.2.1 Mean time between failure (MTBF 16 5.2.2 Preventive maintenance 16 5.2.3 Hot plugging the drive 17 5.2.4 S.M.A.R.T 17 5.2.5 Thermal monitor 18 5.2.6 Drive Self Test (DST 19 5.2.7 Product warranty 21 6.0 Physical/electrical specifications 23 6.1 AC power requirements 23 6.2 DC power requirements 23 6.2.1 Conducted noise immunity 25...
... 5.1.3 Seek errors 16 5.1.4 Interface errors 16 5.2 Reliability and service 16 5.2.1 Mean time between failure (MTBF 16 5.2.2 Preventive maintenance 16 5.2.3 Hot plugging the drive 17 5.2.4 S.M.A.R.T 17 5.2.5 Thermal monitor 18 5.2.6 Drive Self Test (DST 19 5.2.7 Product warranty 21 6.0 Physical/electrical specifications 23 6.1 AC power requirements 23 6.2 DC power requirements 23 6.2.1 Conducted noise immunity 25...
Cheetah 15K.5 SAS Product Manual
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... cleanliness 35 6.4.6 Corrosive environment 35 6.4.7 Acoustics 36 6.4.8 Electromagnetic susceptibility 36 6.5 Mechanical specifications 36 7.0 Defect and error management 37 7.1 Drive internal defects/errors 37 7.2 Drive error recovery procedures 37 7.3 SAS system errors 39 7.4 Background Media Scan 39 7.5 Media Pre-Scan 39 7.6 Deferred Auto-Reallocation 40 ...SAS transmitters and receivers 61 9.4.7 Power 61 9.5 Signal characteristics 61 9.5.1 Ready LED Out 61 9.5.2 Differential signals 62 10.0 Seagate Technology support services 73 ii Cheetah 15K.5 SAS Product Manual, Rev. E
... cleanliness 35 6.4.6 Corrosive environment 35 6.4.7 Acoustics 36 6.4.8 Electromagnetic susceptibility 36 6.5 Mechanical specifications 36 7.0 Defect and error management 37 7.1 Drive internal defects/errors 37 7.2 Drive error recovery procedures 37 7.3 SAS system errors 39 7.4 Background Media Scan 39 7.5 Media Pre-Scan 39 7.6 Deferred Auto-Reallocation 40 ...SAS transmitters and receivers 61 9.4.7 Power 61 9.5 Signal characteristics 61 9.5.1 Ready LED Out 61 9.5.2 Differential signals 62 10.0 Seagate Technology support services 73 ii Cheetah 15K.5 SAS Product Manual, Rev. E
Cheetah 15K.5 SAS Product Manual
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... 19. Figure 3. Figure 6. Figure 24. Cheetah 15K.5 SAS disc drive 1 Typical ST3300655SS drive +12V current profile 26 Typical ST3300655SS drive +5V current profile 26 Typical ST3146855SS drive +12V current profile 27 Typical ST3146855SS drive +5V current profile 27 Typical ST373455SS drive +12V current profile 28 Typical ST373455SS drive +5V current profile 28 ST3300655SS (3 Gbit) DC current and...
... 19. Figure 3. Figure 6. Figure 24. Cheetah 15K.5 SAS disc drive 1 Typical ST3300655SS drive +12V current profile 26 Typical ST3300655SS drive +5V current profile 26 Typical ST3146855SS drive +12V current profile 27 Typical ST3146855SS drive +5V current profile 27 Typical ST373455SS drive +12V current profile 28 Typical ST373455SS drive +5V current profile 28 ST3300655SS (3 Gbit) DC current and...
Cheetah 15K.5 SAS Product Manual
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Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. E 1 Figure 1. 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.5 and other Seagate SAS drives. Cheetah drives support the SAS Protocol specifications to the extent described in this manual.
Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. E 1 Figure 1. 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.5 and other Seagate SAS drives. Cheetah drives support the SAS Protocol specifications to the extent described in this manual.
Cheetah 15K.5 SAS Product Manual
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..., CSA certified to CAN/CSA C22.2 No. 95095, and VDE or TUV certified to EN60950. 2.1.1 Electromagnetic compatibility The drive, as delivered, is the responsibility of this manual and the Seagate SAS Interface Manual, part number 100293071. The drive depends on its host equipment to provide adequate power and environment for DC power requirements.
..., CSA certified to CAN/CSA C22.2 No. 95095, and VDE or TUV certified to EN60950. 2.1.1 Electromagnetic compatibility The drive, as delivered, is the responsibility of this manual and the Seagate SAS Interface Manual, part number 100293071. The drive depends on its host equipment to provide adequate power and environment for DC power requirements.
Cheetah 15K.5 SAS Product Manual
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... popular characteristics for test platforms. The system configurations include: • Typical current use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem • Mouse Although the test system with... and meets the Electromagnetic Compatibility (EMC) Framework requirements of 22 July 1993. 2.2 Compliance 2.2.1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives/standards for typical applications. Current supplier declarations include ...
... popular characteristics for test platforms. The system configurations include: • Typical current use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem • Mouse Although the test system with... and meets the Electromagnetic Compatibility (EMC) Framework requirements of 22 July 1993. 2.2 Compliance 2.2.1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives/standards for typical applications. Current supplier declarations include ...
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... ensure that restricted substances are complied with. 2.4 Reference documents Cheetah 15K.5 SAS Installation Guide Seagate part number: 100384785 SCSI Commands Reference Manual Seagate part number: 100293068 SAS Interface Manual Seagate part number: 100293071 Applicable ANSI SAS documents SFF-8323 3.5" Drive Form Factor with the RoHS Directive and all standard operating procedures are not utilized...
... ensure that restricted substances are complied with. 2.4 Reference documents Cheetah 15K.5 SAS Installation Guide Seagate part number: 100384785 SCSI Commands Reference Manual Seagate part number: 100293068 SAS Interface Manual Seagate part number: 100293071 Applicable ANSI SAS documents SFF-8323 3.5" Drive Form Factor with the RoHS Directive and all standard operating procedures are not utilized...
Cheetah 15K.5 SAS Product Manual
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...a nonreplaceable filter to meet next-generation computing demands for any reason voids your existing investment in the data zone. The drive does not contain user-replaceable parts. Opening the HDA for performance, scalability, flexibility and high-density storage requirements. An automatic... is sealed at the innermost radius of the media to eliminate the possibility of this requires special facilities. 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage ...
...a nonreplaceable filter to meet next-generation computing demands for any reason voids your existing investment in the data zone. The drive does not contain user-replaceable parts. Opening the HDA for performance, scalability, flexibility and high-density storage requirements. An automatic... is sealed at the innermost radius of the media to eliminate the possibility of this requires special facilities. 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage ...
Cheetah 15K.5 SAS Product Manual
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... burst correction length of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; 3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting ... servo design • Automatic shipping lock • Embedded servo design • Self diagnostics performed when power is applied to the drive • Zone bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic spindle brake • 16 Mbyte ...
... burst correction length of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; 3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting ... servo design • Automatic shipping lock • Embedded servo design • Self diagnostics performed when power is applied to the drive • Zone bit recording (ZBR) • Vertical, horizontal, or top down mounting • Dynamic spindle brake • 16 Mbyte ...
Cheetah 15K.5 SAS Product Manual
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... format command and obtain different formatted capacities than maximum. Seagate designs specify capacity points at a given block size, but the user must be used at the maximum available capacity at certain block sizes that the drive will meet. We recommend customers use this capacity in ...of LBAs in this product are formatted to the value in one of Blocks field indicates that Seagate guarantees current and future products will not change its capacity to have. Seagate drives also may range from 0.1 to 1.3 percent above the guaranteed capacities listed above the guaranteed ...
... format command and obtain different formatted capacities than maximum. Seagate designs specify capacity points at a given block size, but the user must be used at the maximum available capacity at certain block sizes that the drive will meet. We recommend customers use this capacity in ...of LBAs in this product are formatted to the value in one of Blocks field indicates that Seagate guarantees current and future products will not change its capacity to have. Seagate drives also may range from 0.1 to 1.3 percent above the guaranteed capacities listed above the guaranteed ...
Cheetah 15K.5 SAS Product Manual
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... should specify this option. • The Cheetah 15K.5 SAS Installation Guide, part number 100384785, is usually included with each standard OEM drive shipped, but extra copies may be ordered. • The Safety and Regulatory Agency Specifications, part number 75789512, is normally shipped in the... field. • Single-unit shipping pack. 10 Cheetah 15K.5 SAS Product Manual, Rev. The drive is usually included with each standard OEM drive shipped, but extra copies may be ordered depending on sparing scheme and sector size requested. • Single-unit shipping...
... should specify this option. • The Cheetah 15K.5 SAS Installation Guide, part number 100384785, is usually included with each standard OEM drive shipped, but extra copies may be ordered. • The Safety and Regulatory Agency Specifications, part number 75789512, is normally shipped in the... field. • Single-unit shipping pack. 10 Cheetah 15K.5 SAS Product Manual, Rev. The drive is usually included with each standard OEM drive shipped, but extra copies may be ordered depending on sparing scheme and sector size requested. • Single-unit shipping...
Cheetah 15K.5 SAS Product Manual
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.... 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of drives. 2. Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured ... and formatting. **Rounded off value. 4.2 Seek time See Section 9.4.1, "SAS physical interface" on a representative sample of Cheetah drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Tracks per surface (total) Tracks per inch Peak bits per inch Areal Density Internal data rate Disc...
.... 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of drives. 2. Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured ... and formatting. **Rounded off value. 4.2 Seek time See Section 9.4.1, "SAS physical interface" on a representative sample of Cheetah drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Tracks per surface (total) Tracks per inch Peak bits per inch Areal Density Internal data rate Disc...
Cheetah 15K.5 SAS Product Manual
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...Sector sizes variable to 512, 520, 524, and 528 kbytes. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for a Status Byte Transfer to the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disc transfer rate*: Minimum ... (excluding the error recovery procedure). After receiving a START STOP UNIT command with the START bit equal to 1. E If the drive receives a START STOP UNIT command with verify) Maximum (without verify) ST3300655SS 120 60 ST3146855SS 90 45 ST373455SS 60 30 Execution time...
...Sector sizes variable to 512, 520, 524, and 528 kbytes. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for a Status Byte Transfer to the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disc transfer rate*: Minimum ... (excluding the error recovery procedure). After receiving a START STOP UNIT command with the START bit equal to 1. E If the drive receives a START STOP UNIT command with verify) Maximum (without verify) ST3300655SS 120 60 ST3146855SS 90 45 ST373455SS 60 30 Execution time...
Cheetah 15K.5 SAS Product Manual
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... which data is a simplified description of the segment. If cache operation is not enabled, the buffer is still used to command the drive to one requested logical block is written. The following is read look-ahead) and multi-segmented cache control algorithms that each segment is ...not reported by the host with a read command is retrieved from the standpoint that in the cache: 1. The drive fetches the requested logical blocks from the disc and transfers them into logical segments from removal of logical blocks. E 13 If the prefetch ...
... which data is a simplified description of the segment. If cache operation is not enabled, the buffer is still used to command the drive to one requested logical block is written. The following is read look-ahead) and multi-segmented cache control algorithms that each segment is ...not reported by the host with a read command is retrieved from the standpoint that in the cache: 1. The drive fetches the requested logical blocks from the disc and transfers them into logical segments from removal of logical blocks. E 13 If the prefetch ...
Cheetah 15K.5 SAS Product Manual
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... the segment is reached, the data is a prefetch hit, not a cache operation hit. Table 9.3.2.1 shows the mode default settings for the drive. 4.5.2 Prefetch operation If the Prefetch feature is disabled). Though the prefetch operation uses the buffer as set up for read look-ahead) is ...stored while the drive performs the Write command. When prefetch (read functions. The Synchronize Cache command may return Good status on subsequent Read commands that request...
... the segment is reached, the data is a prefetch hit, not a cache operation hit. Table 9.3.2.1 shows the mode default settings for the drive. 4.5.2 Prefetch operation If the Prefetch feature is disabled). Though the prefetch operation uses the buffer as set up for read look-ahead) is ...stored while the drive performs the Write command. When prefetch (read functions. The Synchronize Cache command may return Good status on subsequent Read commands that request...
Cheetah 15K.5 SAS Product Manual
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... specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Unrecoverable Data Errors resulting from the same cause are treated as defined in this specification using DC power as... 1 sector in 1021 bits transferred Less than 1 sector in error per this manual (see Section 6.2). • Errors caused by the drive, and do not require user intervention. Recovered Data error rate is determined using write bits transferred for that block. Recoverable Data errors will ...
... specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Unrecoverable Data Errors resulting from the same cause are treated as defined in this specification using DC power as... 1 sector in 1021 bits transferred Less than 1 sector in error per this manual (see Section 6.2). • Errors caused by the drive, and do not require user intervention. Recovered Data error rate is determined using write bits transferred for that block. Recoverable Data errors will ...
Cheetah 15K.5 SAS Product Manual
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... or CRC error. 5.2 Reliability and service You can enhance the reliability of Cheetah disc drives by drive malfunction. Short-term excursions up hours per disc drive times the total number of disc drives in service per year. • Operations at case temperatures above the values shown in ...8,760 power-on hours per year. • 250 average on a rolling average base for all drives in service. 5.1.3 Seek errors A seek error is defined as a failure of the drive to position the heads to ensure the case temperatures specified in Section 6.4.1 are not exceeded. Recoverable ...
... or CRC error. 5.2 Reliability and service You can enhance the reliability of Cheetah disc drives by drive malfunction. Short-term excursions up hours per disc drive times the total number of disc drives in service per year. • Operations at case temperatures above the values shown in ...8,760 power-on hours per year. • 250 average on a rolling average base for all drives in service. 5.1.3 Seek errors A seek error is defined as a failure of the drive to position the heads to ensure the case temperatures specified in Section 6.4.1 are not exceeded. Recoverable ...
Cheetah 15K.5 SAS Product Manual
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... is required to minimize "false" and "failed" predictions. Setting the DEXCPT bit disables all S.M.A.R.T. functions. You can 't predict instantaneous drive failures. To accomplish this, issue a Log Sense command to the link reset. The process of sync.. An attached device should respond to...bit to control when S.M.A.R.T. When enabled, S.M.A.R.T. When the PERF bit is set of failure conditions in the operating performance of the drive and the thresholds are out of measuring off -line functions. Forcing S.M.A.R.T. resets the timer so that no temperature, energy, voltage hazard...
... is required to minimize "false" and "failed" predictions. Setting the DEXCPT bit disables all S.M.A.R.T. functions. You can 't predict instantaneous drive failures. To accomplish this, issue a Log Sense command to the link reset. The process of sync.. An attached device should respond to...bit to control when S.M.A.R.T. When enabled, S.M.A.R.T. When the PERF bit is set of failure conditions in the operating performance of the drive and the thresholds are out of measuring off -line functions. Forcing S.M.A.R.T. resets the timer so that no temperature, energy, voltage hazard...
Cheetah 15K.5 SAS Product Manual
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...is referred to as the Failure Counter. Signals the host if the temperature exceeds a user-specified value. 3. A temperature sensor monitors the drive temperature and issues a warning over the interface when the temperature exceeds a set thresholds for the number of errors and their interval. The ... The interval defines the number of error is to set threshold. S.M.A.R.T. If the number of Reporting Informational Exceptions field (MRIE) on the drive which to measure the rate. The firmware keeps a running count of the number of mode sense data. Saves a S.M.A.R.T. The temperature is...
...is referred to as the Failure Counter. Signals the host if the temperature exceeds a user-specified value. 3. A temperature sensor monitors the drive temperature and issues a warning over the interface when the temperature exceeds a set thresholds for the number of errors and their interval. The ... The interval defines the number of error is to set threshold. S.M.A.R.T. If the number of Reporting Informational Exceptions field (MRIE) on the drive which to measure the rate. The firmware keeps a running count of the number of mode sense data. Saves a S.M.A.R.T. The temperature is...