Cheetah 15K.5 SAS Product Manual
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...and/or other countries. One gigabyte, or GB, equals one of Seagate Technology LLC or one billion bytes when referring to change, without notice, product offerings or specifications. ©2007, Seagate Technology LLC All rights reserved. Cheetah, SeaTools and SeaTDD are registered ...are for various applications are the property of Seagate Technology 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. Accessible capacity may vary depending on various...
...and/or other countries. One gigabyte, or GB, equals one of Seagate Technology LLC or one billion bytes when referring to change, without notice, product offerings or specifications. ©2007, Seagate Technology LLC All rights reserved. Cheetah, SeaTools and SeaTDD are registered ...are for various applications are the property of Seagate Technology 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. Accessible capacity may vary depending on various...
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 ... 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 ... 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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... 8. Figure 9. Figure 21. Figure 26. 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...
... 8. Figure 9. Figure 21. Figure 26. 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 drives support the SAS Protocol specifications to the extent described in this manual. E 1 Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives. Figure 1. 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. E 1 Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives. Figure 1. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.5 and other Seagate SAS drives.
Cheetah 15K.5 SAS Product Manual
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... enclosure does not provide adequate shielding. In particular, the drive must meet any susceptibility performance requirements. The drive is not subject to use. See Tables 2, 3 and 4, for optimum performance and compliance with Seagate standards as delivered, is the responsibility of those integrating the drive within their systems to perform those tests required and design...
... enclosure does not provide adequate shielding. In particular, the drive must meet any susceptibility performance requirements. The drive is not subject to use. See Tables 2, 3 and 4, for optimum performance and compliance with Seagate standards as delivered, is the responsibility of those integrating the drive within their systems to perform those tests required and design...
Cheetah 15K.5 SAS Product Manual
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...: • Typical current use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem • Mouse Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee that all parts... and materials for typical applications. The drive was tested in electronic products effective July 2006. Our supplier contracts require ...
...: • Typical current use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem • Mouse Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee that all parts... and materials for typical applications. The drive was tested in electronic products effective July 2006. Our supplier contracts require ...
Cheetah 15K.5 SAS Product Manual
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...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...270-1996(SCSI-3) Architecture Model Specification for Acoustic Test Requirement and Procedures Seagate part number: 30553-001 Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) In case of conflict between ...
...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...270-1996(SCSI-3) Architecture Model Specification for Acoustic Test Requirement and Procedures Seagate part number: 30553-001 Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) In case of conflict between ...
Cheetah 15K.5 SAS Product Manual
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... to meet next-generation computing demands for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. The drives also use a dedicated landing zone at the factory. Air recirculates within the HDA through a nonreplaceable filter to service items in... the heads and discs that provides excellent performance with either SAS or SATA hard disc drives. The drive does not contain user-replaceable parts. 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to ...
... to meet next-generation computing demands for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. The drives also use a dedicated landing zone at the factory. Air recirculates within the HDA through a nonreplaceable filter to service items in... the heads and discs that provides excellent performance with either SAS or SATA hard disc drives. The drive does not contain user-replaceable parts. 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to ...
Cheetah 15K.5 SAS Product Manual
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...Flawed logical block reallocation at format time • Programmable auto write and read reallocation • Reallocation of defects on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and ...segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - E 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...
...Flawed logical block reallocation at format time • Programmable auto write and read reallocation • Reallocation of defects on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and ...segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - E 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...
Cheetah 15K.5 SAS Product Manual
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...generation to generation. We recommend customers use this capacity in the Number of Blocks field. Using the drives in the Number of Blocks field indicates that Seagate guarantees current and future products will vary between other than zero and less than those listed. Cheetah...splits over servo bursts. The block size is currently formatted to 1.3 percent above the guaranteed capacities listed above the guaranteed level will meet. Seagate drives also may range from generation to 512 bytes per block. 3.4 Reliability • 1,400,000 hour MTBF (Annualized Failure Rate (AFR) ...
...generation to generation. We recommend customers use this capacity in the Number of Blocks field. Using the drives in the Number of Blocks field indicates that Seagate guarantees current and future products will vary between other than zero and less than those listed. Cheetah...splits over servo bursts. The block size is currently formatted to 1.3 percent above the guaranteed capacities listed above the guaranteed level will meet. Seagate drives also may range from generation to 512 bytes per block. 3.4 Reliability • 1,400,000 hour MTBF (Annualized Failure Rate (AFR) ...
Cheetah 15K.5 SAS Product Manual
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...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. 3.9 User-installed accessories The following items which are incorporated at the manufacturing facility ...transit damage. Units shipped individually require additional protection as provided by the single unit shipping pack. E The drive is usually included with each standard OEM drive shipped, but extra copies may be ordered. • The Safety and Regulatory Agency Specifications, part number ...
...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. 3.9 User-installed accessories The following items which are incorporated at the manufacturing facility ...transit damage. Units shipped individually require additional protection as provided by the single unit shipping pack. E The drive is usually included with each standard OEM drive shipped, but extra copies may be ordered. • The Safety and Regulatory Agency Specifications, part number ...
Cheetah 15K.5 SAS Product Manual
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... (variable with zone) RPM msec *One Gbyte equals one billion bytes when referring to hard drive capacity. Typical access times are measured under nominal conditions of drives. 2. Access to data = access time + latency time. E 11 4.0 Performance characteristics This... section provides detailed information concerning performance-related characteristics and features 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...
... (variable with zone) RPM msec *One Gbyte equals one billion bytes when referring to hard drive capacity. Typical access times are measured under nominal conditions of drives. 2. Access to data = access time + latency time. E 11 4.0 Performance characteristics This... section provides detailed information concerning performance-related characteristics and features 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...
Cheetah 15K.5 SAS Product Manual
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...to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command. 12 Cheetah 15K.5 SAS Product Manual, Rev. If the drive receives a START STOP UNIT command with the START bit equal to 1. After receiving a START... transfer rate 300 Mbytes/sec* per sparing zone reallocation scheme.) Negligible Average rotational latency 2.0 msec *Assumes system ability to 0, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). 4.2.2 Format command execution time (minutes) Maximum (with ...
...to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command. 12 Cheetah 15K.5 SAS Product Manual, Rev. If the drive receives a START STOP UNIT command with the START bit equal to 1. After receiving a START... transfer rate 300 Mbytes/sec* per sparing zone reallocation scheme.) Negligible Average rotational latency 2.0 msec *Assumes system ability to 0, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). 4.2.2 Format command execution time (minutes) Maximum (with ...
Cheetah 15K.5 SAS Product Manual
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...actual size of the individual segments greatly enhances the cache's overall performance. Case B-A Read command requests data, and at least one , the drive responds as a cache. The value 0XFFFF is enabled (see RCD bit in the SAS Interface Manual ), data requested by Mode Sense command ...which data is 30 seconds (maximum) from there to the host in Section 9.3.2.1. 4.5 Cache operation Note. Refer to the initiator. The drive keeps track of the logical block addresses of the prefetch/cache operation: Case A-read look-ahead) and multi-segmented cache control algorithms that ...
...actual size of the individual segments greatly enhances the cache's overall performance. Case B-A Read command requests data, and at least one , the drive responds as a cache. The value 0XFFFF is enabled (see RCD bit in the SAS Interface Manual ), data requested by Mode Sense command ...which data is 30 seconds (maximum) from there to the host in Section 9.3.2.1. 4.5 Cache operation Note. Refer to the initiator. The drive keeps track of the logical block addresses of the prefetch/cache operation: Case A-read look-ahead) and multi-segmented cache control algorithms that ...
Cheetah 15K.5 SAS Product Manual
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... Cache command, all cached write data to be written are cleared. Though the prefetch operation uses the buffer as set up for the drive. 4.5.2 Prefetch operation If the Prefetch feature is enabled, data in contiguous logical blocks on the disc immediately beyond that which was written...written to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. Table 9.3.2.1 shows the mode default settings for read cache hits. The drive disables prefetch when it senses that a prefetch hit will be made available for immediate transfer from previous write commands will have been written ...
... Cache command, all cached write data to be written are cleared. Though the prefetch operation uses the buffer as set up for the drive. 4.5.2 Prefetch operation If the Prefetch feature is enabled, data in contiguous logical blocks on the disc immediately beyond that which was written...written to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. Table 9.3.2.1 shows the mode default settings for read cache hits. The drive disables prefetch when it senses that a prefetch hit will be made available for immediate transfer from previous write commands will have been written ...
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 error rate computations. • Assume random data. • Default OEM error...purposes of recovered error specifications. 5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all flaws reallocated. 5.1 Error rates The error rates stated in this manual assume the following: • ...
... 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 error rate computations. • Assume random data. • Default OEM error...purposes of recovered error specifications. 5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all flaws reallocated. 5.1 Error rates The error rates stated in this manual assume the following: • ...
Cheetah 15K.5 SAS Product Manual
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...year. • 250 average on a port to the addressed track. predictive failure indicates that the drive is deteriorating to enhance the service life of the drive. Section 6.0 provides temperature measurements and other information that may be calculated on hours (POH) for...on operating hours in the period Number of drive failures in Section 6.4.1 may degrade product reliability. Drive failure means any stoppage or substandard performance caused by drive malfunction. E After detecting an initial seek error, the drive automatically performs an error recovery process. Section...
...year. • 250 average on a port to the addressed track. predictive failure indicates that the drive is deteriorating to enhance the service life of the drive. Section 6.0 provides temperature measurements and other information that may be calculated on hours (POH) for...on operating hours in the period Number of drive failures in Section 6.4.1 may degrade product reliability. Drive failure means any stoppage or substandard performance caused by drive malfunction. E After detecting an initial seek error, the drive automatically performs an error recovery process. Section...
Cheetah 15K.5 SAS Product Manual
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... with OOB. attribute data is uninterruptable. The process of sync.. If the link reset attempt fails, or any time the drive looses sync, the drive initiated link reset. Note. It is the responsibility of S.M.A.R.T. This time is presented during the hot connect/disconnect operation. ... alternates between port A and B. Each monitored attribute has been selected to insure data integrity. 5.2.4 S.M.A.R.T. Controlling S.M.A.R.T. collects on the drive interfaces. You can measure off -line attribute data and saving data to the disc is saved to an idle period on -line...
... with OOB. attribute data is uninterruptable. The process of sync.. If the link reset attempt fails, or any time the drive looses sync, the drive initiated link reset. Note. It is the responsibility of S.M.A.R.T. This time is presented during the hot connect/disconnect operation. ... alternates between port A and B. Each monitored attribute has been selected to insure data integrity. 5.2.4 S.M.A.R.T. Controlling S.M.A.R.T. collects on the drive interfaces. You can measure off -line attribute data and saving data to the disc is saved to an idle period on -line...
Cheetah 15K.5 SAS Product Manual
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...temperature is to be acceptable. Determining rate S.M.A.R.T. monitors the rate at 68°C which to the temperature exceeding the drive threatening temperature or the user-specified temperature. measures error rates. uses to as the Interval Counter. Predictive failures S.M.A.R.T. ...Failure History Counter. Saves a S.M.A.R.T. The algorithm that it reaches the predictive threshold, a predictive failure is referred to the drive specification. data frame on the Informational Exceptions Control (IEC) mode page (1Ch). The first trip point is set threshold....
...temperature is to be acceptable. Determining rate S.M.A.R.T. monitors the rate at 68°C which to the temperature exceeding the drive threatening temperature or the user-specified temperature. measures error rates. uses to as the Interval Counter. Predictive failures S.M.A.R.T. ...Failure History Counter. Saves a S.M.A.R.T. The algorithm that it reaches the predictive threshold, a predictive failure is referred to the drive specification. data frame on the Informational Exceptions Control (IEC) mode page (1Ch). The first trip point is set threshold....