Cheetah 15K.6 SAS Product Manual
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... 8 3.4 Reliability 9 3.5 Formatted capacities 9 3.6 Programmable drive capacity 9 3.7 Factory-installed options 9 4.0 Performance characteristics 11 4.1 Internal drive characteristics 11 4.2 Seek time 11 4.2.1 Access time 11 ...4.2.2 Format command execution time (minutes 12 4.2.3 General performance characteristics 12 4.3 Start/stop time 12 4.4 Prefetch/multi-segmented cache control...maintenance 16 5.2.3 Hot plugging the drive 16 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...
... 8 3.4 Reliability 9 3.5 Formatted capacities 9 3.6 Programmable drive capacity 9 3.7 Factory-installed options 9 4.0 Performance characteristics 11 4.1 Internal drive characteristics 11 4.2 Seek time 11 4.2.1 Access time 11 ...4.2.2 Format command execution time (minutes 12 4.2.3 General performance characteristics 12 4.3 Start/stop time 12 4.4 Prefetch/multi-segmented cache control...maintenance 16 5.2.3 Hot plugging the drive 16 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...
Cheetah 15K.6 SAS Product Manual
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...and governmental regulations. 2.0 Standards, compliance and reference documents The drive has been developed as a system peripheral to meet the requirements of Section 8.3. 2.1 Standards The Cheetah 15K.6 SAS family complies with Seagate standards as noted in the appropriate sections of this product ...Security Subsystem Class: Enterprise_A" specification with the shields grounded to the enclosure and to the host controller. 2.1.1.1 Electromagnetic susceptibility As a component assembly, the drive is the user's responsibility to Subpart B of Part 15 of the FCC Rules and Regulations ...
...and governmental regulations. 2.0 Standards, compliance and reference documents The drive has been developed as a system peripheral to meet the requirements of Section 8.3. 2.1 Standards The Cheetah 15K.6 SAS family complies with Seagate standards as noted in the appropriate sections of this product ...Security Subsystem Class: Enterprise_A" specification with the shields grounded to the enclosure and to the host controller. 2.1.1.1 Electromagnetic susceptibility As a component assembly, the drive is the user's responsibility to Subpart B of Part 15 of the FCC Rules and Regulations ...
Cheetah 15K.6 SAS Product Manual
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... chemical substance restrictions, and our suppliers document their product. The drive was tested in Seagate products are procured from external suppliers. Australian C-Tick If this ...complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility (EMC) Control Regulation and meets the Electromagnetic Compatibility Framework requirements of the Radio Research Laboratory ...RoHS substances in such parts or materials. 4 Cheetah 15K.6 SAS Product Manual, Rev. 2.2 Compliance 2.2.1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with...
... chemical substance restrictions, and our suppliers document their product. The drive was tested in Seagate products are procured from external suppliers. Australian C-Tick If this ...complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility (EMC) Control Regulation and meets the Electromagnetic Compatibility Framework requirements of the Radio Research Laboratory ...RoHS substances in such parts or materials. 4 Cheetah 15K.6 SAS Product Manual, Rev. 2.2 Compliance 2.2.1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with...
Cheetah 15K.6 SAS Product Manual
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...Cheetah 15K.6 SAS FDE models have it's own ownership credential and encryption key • Authenticated firmware download 3.2 Media description The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection. 3.3 Performance • Firmware-controlled... • Integrated dual port SAS controller supporting the SCSI protocol • Support for enhanced system performance. • 300 Mbytes/sec maximum instantaneous data transfers. • 15k RPM...
...Cheetah 15K.6 SAS FDE models have it's own ownership credential and encryption key • Authenticated firmware download 3.2 Media description The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection. 3.3 Performance • Firmware-controlled... • Integrated dual port SAS controller supporting the SCSI protocol • Support for enhanced system performance. • 300 Mbytes/sec maximum instantaneous data transfers. • 15k RPM...
Cheetah 15K.6 SAS Product Manual
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...controller overhead1, 2 (msec) Read Write Average Typical 3.4 3.9 Single track Typical 0.20 0.44 Full stroke Typical 6.43 7.12 1. Cheetah 15K.6 SAS Product Manual, Rev. B 11 Access to hard drive capacity. 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.6 drives. 4.1 Internal drive characteristics Drive capacity ST3450856SS ST3300656SS ST3146356SS ST3450056SS ST3300056SS ST3146756SS 450 300... "SAS physical interface" on a representative sample of drives. 2.
...controller overhead1, 2 (msec) Read Write Average Typical 3.4 3.9 Single track Typical 0.20 0.44 Full stroke Typical 6.43 7.12 1. Cheetah 15K.6 SAS Product Manual, Rev. B 11 Access to hard drive capacity. 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.6 drives. 4.1 Internal drive characteristics Drive capacity ST3450856SS ST3300656SS ST3146356SS ST3450056SS ST3300056SS ST3146756SS 450 300... "SAS physical interface" on a representative sample of drives. 2.
Cheetah 15K.6 SAS Product Manual
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... Manual for more detail concerning the cache bits. Stop time is no power control switch on the drive. 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that each segment of the buffer. There is 30 seconds (maximum) ... enabled, refer to which data is enabled and disabled independently using the Mode Select command; The wrap-around capability of logical blocks. Cheetah 15K.6 SAS Product Manual, Rev. The START STOP UNIT command may be used in sections 4.5.1 and 4.5.2. Of the 16 Mbytes ...
... Manual for more detail concerning the cache bits. Stop time is no power control switch on the drive. 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that each segment of the buffer. There is 30 seconds (maximum) ... enabled, refer to which data is enabled and disabled independently using the Mode Select command; The wrap-around capability of logical blocks. Cheetah 15K.6 SAS Product Manual, Rev. The START STOP UNIT command may be used in sections 4.5.1 and 4.5.2. Of the 16 Mbytes ...
Cheetah 15K.6 SAS Product Manual
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...two hours subject to an idle period on -line data as the drive performs normal read and write operations. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.6 SAS Product Manual, Rev. This technology is intended to ... thresholds are optimized to enable or disable the S.M.A.R.T. The maximum on the Informational Exceptions Control mode page (1Ch). Each monitored attribute has been selected to monitor a specific set , the drive is controlled by using the Rezero Unit command. Setting the DEXCPT bit disables all S.M.A.R.T. interruptions occur...
...two hours subject to an idle period on -line data as the drive performs normal read and write operations. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.6 SAS Product Manual, Rev. This technology is intended to ... thresholds are optimized to enable or disable the S.M.A.R.T. The maximum on the Informational Exceptions Control mode page (1Ch). Each monitored attribute has been selected to monitor a specific set , the drive is controlled by using the Rezero Unit command. Setting the DEXCPT bit disables all S.M.A.R.T. interruptions occur...
Cheetah 15K.6 SAS Product Manual
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...of errors per operation. In either case, the interval and failure counters are recorded. signals predictive failures when the drive is controlled by the Enable Warning (EWasc) bit, and the reporting mechanism is performing unacceptably for each time the error rate... on the drive which would threaten the drive. 2. You can use this , a counter is incremented each attribute. 5.2.5 Thermal monitor Cheetah 15K.6 drives implement a temperature warning system which is unacceptable and decremented (not to as the Failure History Counter. This feature is controlled by the ...
...of errors per operation. In either case, the interval and failure counters are recorded. signals predictive failures when the drive is controlled by the Enable Warning (EWasc) bit, and the reporting mechanism is performing unacceptably for each time the error rate... on the drive which would threaten the drive. 2. You can use this , a counter is incremented each attribute. 5.2.5 Thermal monitor Cheetah 15K.6 drives implement a temperature warning system which is unacceptable and decremented (not to as the Failure History Counter. This feature is controlled by the ...
Cheetah 15K.6 SAS Product Manual
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...new parameter block will be moved to the last 20 self-tests performed by the drive. B This option provides a quick confidence test of the Extended test is reported through the Control Mode page. 5.2.6.2.4 Log page entries When the drive begins DST, it creates a new entry in the Self-test Results Log page... up to make room for the new parameter block. If there are described in the field. 20 Cheetah 15K.6 SAS Product Manual, Rev. The drive will store the log page to zero, the drive passed with the appropriate Function Code (001b for the short test or 010b for the extended test) ...
...new parameter block will be moved to the last 20 self-tests performed by the drive. B This option provides a quick confidence test of the Extended test is reported through the Control Mode page. 5.2.6.2.4 Log page entries When the drive begins DST, it creates a new entry in the Self-test Results Log page... up to make room for the new parameter block. If there are described in the field. 20 Cheetah 15K.6 SAS Product Manual, Rev. The drive will store the log page to zero, the drive passed with the appropriate Function Code (001b for the short test or 010b for the extended test) ...
Cheetah 15K.6 SAS Product Manual
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...Hz 1.2 gRMS c. There will not be any drive. 6.4.6 Air cleanliness The drive is designed to operate in the frequency range of handling and transportation. Cheetah 15K.6 SAS Product Manual, Rev. Operating-normal The drive as installed for normal operation shall not incur physical...incur physical damage or degraded performance as installed for normal operation, shall comply with minimal environmental control. 6.4.7 Corrosive environment Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to ISO 7779 specification. Vibration may...
...Hz 1.2 gRMS c. There will not be any drive. 6.4.6 Air cleanliness The drive is designed to operate in the frequency range of handling and transportation. Cheetah 15K.6 SAS Product Manual, Rev. Operating-normal The drive as installed for normal operation shall not incur physical...incur physical damage or degraded performance as installed for normal operation, shall comply with minimal environmental control. 6.4.7 Corrosive environment Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to ISO 7779 specification. Vibration may...
Cheetah 15K.6 SAS Product Manual
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... rates and specified storage capacities are not dependent on the options previously set in communications between the initiator and the drive). Cheetah 15K.6 SAS Product Manual, Rev. The error recovery scheme supported by the initiator using several SCSI commands described in...Parameters mode page. In addition, Seagate provides the following technologies used depend on host (initiator) defect management routines. 7.1 Drive internal defects/errors During the initial drive format operation at the factory, media defects are designed to controlling the recovery level for the ...
... rates and specified storage capacities are not dependent on the options previously set in communications between the initiator and the drive). Cheetah 15K.6 SAS Product Manual, Rev. The error recovery scheme supported by the initiator using several SCSI commands described in...Parameters mode page. In addition, Seagate provides the following technologies used depend on host (initiator) defect management routines. 7.1 Drive internal defects/errors During the initial drive format operation at the factory, media defects are designed to controlling the recovery level for the ...
Cheetah 15K.6 SAS Product Manual
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... is executing error recovery and it restarts on control of the time spent in the drive not performing error recovery. The drive will result in error recovery. Setting these retry counts to perform reallocations. The recovery time limit only starts counting when the drive is allowed to take up to change. B... or AWRE bit (for writes) is defined as a recovery function involving a single reread or re-write attempt. Time needed to 00 01. 44 Cheetah 15K.6 SAS Product Manual, Rev. When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are subject to 200...
... is executing error recovery and it restarts on control of the time spent in the drive not performing error recovery. The drive will result in error recovery. Setting these retry counts to perform reallocations. The recovery time limit only starts counting when the drive is allowed to take up to change. B... or AWRE bit (for writes) is defined as a recovery function involving a single reread or re-write attempt. Time needed to 00 01. 44 Cheetah 15K.6 SAS Product Manual, Rev. When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are subject to 200...
Cheetah 15K.6 SAS Product Manual
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Table 21: Commands supported by Cheetah 15K.6 SAS family drives (continued) Command name Non-medium Error page (06h) Pages Supported list (00h) Read Error Counter page (03h) Read Reverse Error Counter page (04h) Self-... mode subpage (01h) Notch and Partition Page (0Ch) Protocol-Specific Port page (19h) Power Condition page (1Ah) Rigid disk Drive Geometry page (04h) Unit Attention page (00h) Verify Error Recovery page (07h) Xor Control page (10h) Command code 15h 55h 1Ah Supported Y Y Y N Y Y Y Y Y Y Y [2] Y Y [2] Y Y Y Y Y Y Y N Y Y Y Y Y N Mode Sense (10) (same pages as Mode Sense 1Ah) ...
Table 21: Commands supported by Cheetah 15K.6 SAS family drives (continued) Command name Non-medium Error page (06h) Pages Supported list (00h) Read Error Counter page (03h) Read Reverse Error Counter page (04h) Self-... mode subpage (01h) Notch and Partition Page (0Ch) Protocol-Specific Port page (19h) Power Condition page (1Ah) Rigid disk Drive Geometry page (04h) Unit Attention page (00h) Verify Error Recovery page (07h) Xor Control page (10h) Command code 15h 55h 1Ah Supported Y Y Y N Y Y Y Y Y Y Y [2] Y Y [2] Y Y Y Y Y Y Y N Y Y Y Y Y N Mode Sense (10) (same pages as Mode Sense 1Ah) ...
Cheetah 15K.6 SAS Product Manual
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...ready." A Mode Select command can be changed by a Mode Select command. A zero (0) indicates the value is changeable. 58 Cheetah 15K.6 SAS Product Manual, Rev. Since all zeros. Default values Default values are hex numbers representing the changeable values for Mode page... on reset, hard reset, or Bus Device Reset message. 4. indicates if default value is not changeable. 9.3.2 Mode Sense data The Mode Sense command provides a way for the drive to report its operation. These default values can be changed by the drive to control its operating parameters...
...ready." A Mode Select command can be changed by a Mode Select command. A zero (0) indicates the value is changeable. 58 Cheetah 15K.6 SAS Product Manual, Rev. Since all zeros. Default values Default values are hex numbers representing the changeable values for Mode page... on reset, hard reset, or Bus Device Reset message. 4. indicates if default value is not changeable. 9.3.2 Mode Sense data The Mode Sense command provides a way for the drive to report its operation. These default values can be changed by the drive to control its operating parameters...
Cheetah 15K.6 SAS Product Manual
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...Asynchronous event notification Synchronized (locked) spindle operation Segmented caching Zero latency read Queue tagging (up to 64 queue tags supported) Deferred error handling Parameter rounding (controlled by Round bit in Mode Select page 0) Reporting actual retry count in Extended Sense bytes 15, 16, and 17 Adaptive caching SMP = 1 in... Task set full ACA active ACA active, faulted initiator 9.4.1 SAS physical interface Figure 14 shows the location of the SAS device. 62 Cheetah 15K.6 SAS Product Manual, Rev. Figures 15 and 16 provide the dimensions of the SAS device connector J1.
...Asynchronous event notification Synchronized (locked) spindle operation Segmented caching Zero latency read Queue tagging (up to 64 queue tags supported) Deferred error handling Parameter rounding (controlled by Round bit in Mode Select page 0) Reporting actual retry count in Extended Sense bytes 15, 16, and 17 Adaptive caching SMP = 1 in... Task set full ACA active ACA active, faulted initiator 9.4.1 SAS physical interface Figure 14 shows the location of the SAS device. 62 Cheetah 15K.6 SAS Product Manual, Rev. Figures 15 and 16 provide the dimensions of the SAS device connector J1.
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...physical 62 requirements 51 intermediate/condition met/good status 62 intermediate/good status 62 internal data rate 11 internal defects/errors 43 internal drive characteristics 11 82 IRAW 46 J jumpers 47 L latency average rotational 11, 12 logical block address 13 logical block reallocation scheme 8...media data 15 Mode sense data, table 57 mounting 49 holes 49 orientations 47 N noise audible 3 noise immunity 27 Cheetah 15K.6 SAS Product Manual, Rev. B environmental control 39 error management 43 rates 15 errors 43 F FCC rules and regulations 3 features 8 interface 51 firmware 8 corruption 56...
...physical 62 requirements 51 intermediate/condition met/good status 62 intermediate/good status 62 internal data rate 11 internal defects/errors 43 internal drive characteristics 11 82 IRAW 46 J jumpers 47 L latency average rotational 11, 12 logical block address 13 logical block reallocation scheme 8...media data 15 Mode sense data, table 57 mounting 49 holes 49 orientations 47 N noise audible 3 noise immunity 27 Cheetah 15K.6 SAS Product Manual, Rev. B environmental control 39 error management 43 rates 15 errors 43 F FCC rules and regulations 3 features 8 interface 51 firmware 8 corruption 56...
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...23 pin descriptions 66 power 67 dissipation 30 requirements, AC 23 requirements, DC 23 sequencing 27 power distribution 3 prefetch/multi-segmented cache control 13 preventive maintenance 15 Q queue tagging 62 R radio interference regulations 3 RCD bit 13 read error rates 15, 43 read/write ...data heads 11 receivers 67 recommended mounting 38 Recoverable Errors 15 recovered media data 15 reference documents 5 relative humidity 37 Cheetah 15K.6 SAS Product Manual, Rev. B reliability 9 specifications 15 reliability and service 16 repair and return information 21 reporting actual retry...
...23 pin descriptions 66 power 67 dissipation 30 requirements, AC 23 requirements, DC 23 sequencing 27 power distribution 3 prefetch/multi-segmented cache control 13 preventive maintenance 15 Q queue tagging 62 R radio interference regulations 3 RCD bit 13 read error rates 15, 43 read/write ...data heads 11 receivers 67 recommended mounting 38 Recoverable Errors 15 recovered media data 15 reference documents 5 relative humidity 37 Cheetah 15K.6 SAS Product Manual, Rev. B reliability 9 specifications 15 reliability and service 16 repair and return information 21 reporting actual retry...