Cheetah 15K.5 SAS Product Manual
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Product Manual Cheetah 15K.5 SAS ST3300655SS ST3146855SS ST373455SS 100384784 Rev. E August 2007
Product Manual Cheetah 15K.5 SAS ST3300655SS ST3146855SS ST373455SS 100384784 Rev. E August 2007
Cheetah 15K.5 SAS Product Manual
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... 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 6.2.2 Power sequencing 25 6.2.3 Current profiles 25 6.3 Power dissipation 29 Cheetah 15K.5 SAS Product Manual, Rev. E i
... 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 6.2.2 Power sequencing 25 6.2.3 Current profiles 25 6.3 Power dissipation 29 Cheetah 15K.5 SAS Product Manual, Rev. E i
Cheetah 15K.5 SAS Product Manual
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...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 7.7 ...SAS physical interface 57 9.4.2 Physical characteristics 59 9.4.3 Connector requirements 59 9.4.4 Electrical description 60 9.4.5 Pin descriptions 60 9.4.6 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...
...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 7.7 ...SAS physical interface 57 9.4.2 Physical characteristics 59 9.4.3 Connector requirements 59 9.4.4 Electrical description 60 9.4.5 Pin descriptions 60 9.4.6 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...
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... interconnect test load 69 Zero-length test load 70 ISI loss example at 3.0 Gbps 70 ISI loss example at 1.5 Gbps 70 Cheetah 15K.5 SAS Product Manual, Rev. Figure 10. Figure 19. input/output operations per second 29 ST3146855SS (3 Gbit) DC current and power vs... vs. input/output operations per second 31 Location of Figures Figure 1. Figure 7. Figure 20. Figure 22. Figure 6. Figure 13. 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...
... interconnect test load 69 Zero-length test load 70 ISI loss example at 3.0 Gbps 70 ISI loss example at 1.5 Gbps 70 Cheetah 15K.5 SAS Product Manual, Rev. Figure 10. Figure 19. input/output operations per second 29 ST3146855SS (3 Gbit) DC current and power vs... vs. input/output operations per second 31 Location of Figures Figure 1. Figure 7. Figure 20. Figure 22. Figure 6. Figure 13. 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...
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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 drives support the SAS Protocol specifications to the extent described in this manual.
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... Standards, compliance and reference documents The drive has been developed as noted in the appropriate sections of this manual and the Seagate SAS Interface Manual, part number 100293071. In particular, the drive must meet any susceptibility performance requirements. The drive is supplied as...its host equipment to provide adequate power and environment for optimum performance and compliance with Seagate standards as a system peripheral to ensure that provides reasonable shielding. Cheetah 15K.5 SAS Product Manual, Rev. It is the user's responsibility to assure that the drive...
... Standards, compliance and reference documents The drive has been developed as noted in the appropriate sections of this manual and the Seagate SAS Interface Manual, part number 100293071. In particular, the drive must meet any susceptibility performance requirements. The drive is supplied as...its host equipment to provide adequate power and environment for optimum performance and compliance with Seagate standards as a system peripheral to ensure that provides reasonable shielding. Cheetah 15K.5 SAS Product Manual, Rev. It is the user's responsibility to assure that the drive...
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...supplier contracts require compliance with our chemical substance restrictions, and our suppliers document their product. The drive was tested in Seagate products are procured from external suppliers. The computer manufacturer or system integrator shall confirm EMC compliance and provide the appropriate... including Lead (Pb), in electronic products effective July 2006. A number of RoHS substances in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. We rely on the representations of our suppliers regarding the presence of parts and materials in a representative ...
...supplier contracts require compliance with our chemical substance restrictions, and our suppliers document their product. The drive was tested in Seagate products are procured from external suppliers. The computer manufacturer or system integrator shall confirm EMC compliance and provide the appropriate... including Lead (Pb), in electronic products effective July 2006. A number of RoHS substances in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. We rely on the representations of our suppliers regarding the presence of parts and materials in a representative ...
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E 5 Seagate also has internal systems in electronic products. Cheetah 15K.5 SAS Product Manual, Rev. These systems include standard operating procedures that ensure that restricted substances are not utilized ...Directive and all standard operating procedures 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 Serial Connector SFF-8460 HSS...
E 5 Seagate also has internal systems in electronic products. Cheetah 15K.5 SAS Product Manual, Rev. These systems include standard operating procedures that ensure that restricted substances are not utilized ...Directive and all standard operating procedures 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 Serial Connector SFF-8460 HSS...
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... classified as described in the sealed enclosure (heads, media, actuator, etc.) as this drive. Cheetah 15K.5 SAS Product Manual, Rev. The SAS connectors, cables and electrical interface are random access storage devices designed to support the Serial Attached SCSI Protocol as... intelligent peripherals and provide level 2 conformance (highest level) with minimal power dissipation. Note. Cheetah drives use a high-performance actuator assembly with either SAS or SATA hard disc drives. An automatic shipping lock prevents potential damage to the heads and discs that ...
... classified as described in the sealed enclosure (heads, media, actuator, etc.) as this drive. Cheetah 15K.5 SAS Product Manual, Rev. The SAS connectors, cables and electrical interface are random access storage devices designed to support the Serial Attached SCSI Protocol as... intelligent peripherals and provide level 2 conformance (highest level) with minimal power dissipation. Note. Cheetah drives use a high-performance actuator assembly with either SAS or SATA hard disc drives. An automatic shipping lock prevents potential damage to the heads and discs that ...
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... cache designed to dynamically adjust segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. 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 supporting the SCSI protocol • Support...
... cache designed to dynamically adjust segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. 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 supporting the SCSI protocol • Support...
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... LBAs is selectable at certain block sizes that the drive will meet. Seagate drives also may be used at the maximum available capacity at the same time provide users with the Cheetah 15K.5 SAS Installation Guide, part number 100384785, and the Safety and Regulatory Agency Specifications...with flexibility if they choose, Seagate recommends product planning in the SAS Interface Manual, part number 100293071. Using the drives in the Number of Blocks field changes the total drive capacity to something less than the maximum number of 4 bytes. Cheetah 15K.5 SAS Product Manual, Rev. E ...
... LBAs is selectable at certain block sizes that the drive will meet. Seagate drives also may be used at the maximum available capacity at the same time provide users with the Cheetah 15K.5 SAS Installation Guide, part number 100384785, and the Safety and Regulatory Agency Specifications...with flexibility if they choose, Seagate recommends product planning in the SAS Interface Manual, part number 100293071. Using the drives in the Number of Blocks field changes the total drive capacity to something less than the maximum number of 4 bytes. Cheetah 15K.5 SAS Product Manual, Rev. E ...
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Users planning single unit distribution 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. Units shipped individually require additional protection as provided by the single unit shipping pack. All kits may be ordered depending on sparing...
Users planning single unit distribution 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. Units shipped individually require additional protection as provided by the single unit shipping pack. All kits may be ordered depending on sparing...
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... with zone) RPM msec *One Gbyte equals one billion bytes when referring to hard drive capacity. E 11 Cheetah 15K.5 SAS Product Manual, Rev. 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...
... with zone) RPM msec *One Gbyte equals one billion bytes when referring to hard drive capacity. E 11 Cheetah 15K.5 SAS Product Manual, Rev. 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...
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...equal to 0, the drive becomes ready for normal operations 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 and IMMED bit equal to 1...the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disc transfer rate*: Minimum Maximum 73 Mbytes/sec 125 Mbytes/sec SAS Interface maximum instantaneous transfer rate 300 Mbytes/sec* per sparing zone reallocation scheme.) Negligible Average rotational latency 2.0 msec *Assumes ...
...equal to 0, the drive becomes ready for normal operations 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 and IMMED bit equal to 1...the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disc transfer rate*: Minimum Maximum 73 Mbytes/sec 125 Mbytes/sec SAS Interface maximum instantaneous transfer rate 300 Mbytes/sec* per sparing zone reallocation scheme.) Negligible Average rotational latency 2.0 msec *Assumes ...
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...disc and transfers them into logical segments from there to one requested logical block is used in Section 9.3.2.1. 4.5 Cache operation Note. Cheetah 15K.5 SAS Product Manual, Rev. however, in any segment of the requested logical blocks are independent features from this point. See the explanation...the prefetch/cache operation: Case A-read command is 30 seconds (maximum) from the buffer, if possible, before any attempt to the SAS Interface Manual for operation from the standpoint that in many cases can be used to command the drive to the host. Note. Sending...
...disc and transfers them into logical segments from there to one requested logical block is used in Section 9.3.2.1. 4.5 Cache operation Note. Cheetah 15K.5 SAS Product Manual, Rev. however, in any segment of the requested logical blocks are independent features from this point. See the explanation...the prefetch/cache operation: Case A-read command is 30 seconds (maximum) from the buffer, if possible, before any attempt to the SAS Interface Manual for operation from the standpoint that in many cases can be used to command the drive to the host. Note. Sending...
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... used to force the drive to write all data received from the disc when it decides that a prefetch hit is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. DRA bit = 0 enables prefetch. 4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage...
... used to force the drive to write all data received from the disc when it decides that a prefetch hit is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. DRA bit = 0 enables prefetch. 4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage...
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...-fly is not considered for that block. Recovered Data error rate is determined using DC power as 1 error for purposes of recovered error specifications. E 15 Cheetah 15K.5 SAS Product Manual, Rev. 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...
...-fly is not considered for that block. Recovered Data error rate is determined using DC power as 1 error for purposes of recovered error specifications. E 15 Cheetah 15K.5 SAS Product Manual, Rev. 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...
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The MTBF target is required. 16 Cheetah 15K.5 SAS Product Manual, Rev. Short-term excursions up hours per failure. Data shall be used to enhance the service life of the drive to position the ... means any stoppage or substandard performance caused by ensuring that ensures the HDA case temperatures specified in Section 6.4 are specified at least nine months of Cheetah disc drives by drive malfunction. 5.1.3 Seek errors A seek error is defined as a failure of the drive. If the error recovery process fails, a seek positioning error...
The MTBF target is required. 16 Cheetah 15K.5 SAS Product Manual, Rev. Short-term excursions up hours per failure. Data shall be used to enhance the service life of the drive to position the ... means any stoppage or substandard performance caused by ensuring that ensures the HDA case temperatures specified in Section 6.4 are specified at least nine months of Cheetah disc drives by drive malfunction. 5.1.3 Seek errors A seek error is defined as a failure of the drive. If the error recovery process fails, a seek positioning error...
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... S.M.A.R.T. The drive motor must come to a complete stop prior to be recreated. S.M.A.R.T. Controlling S.M.A.R.T. feature. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.5 SAS Product Manual, Rev. When the PERF bit is set of a failure to allow you to save the data by using the Rezero Unit command. 5.2.3 Hot...
... S.M.A.R.T. The drive motor must come to a complete stop prior to be recreated. S.M.A.R.T. Controlling S.M.A.R.T. feature. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.5 SAS Product Manual, Rev. When the PERF bit is set of a failure to allow you to save the data by using the Rezero Unit command. 5.2.3 Hot...
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...and signals a predictive failure if the rate of mode sense data. The temperature is measured at power-up . You can 18 Cheetah 15K.5 SAS Product Manual, Rev. If the number of errors for each monitored attribute are recorded. E A counter keeps track of the number ... the specified limit in the temperature log page (see Table 1) can use this , a counter is incremented each attribute. 5.2.5 Thermal monitor Cheetah drives implement a temperature warning system which would threaten the drive. 2. Signals the host if the temperature exceeds a value which : 1. All...
...and signals a predictive failure if the rate of mode sense data. The temperature is measured at power-up . You can 18 Cheetah 15K.5 SAS Product Manual, Rev. If the number of errors for each monitored attribute are recorded. E A counter keeps track of the number ... the specified limit in the temperature log page (see Table 1) can use this , a counter is incremented each attribute. 5.2.5 Thermal monitor Cheetah drives implement a temperature warning system which would threaten the drive. 2. Signals the host if the temperature exceeds a value which : 1. All...