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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... 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 11. Figure 18. Figure 20. Figure 22. Cheetah 15K.5 SAS disc drive 1 Typical ST3300655SS drive +12V current profile 26 Typical ST3300655SS drive +5V current profile 26 Typical ST3146855SS...
... 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 11. Figure 18. Figure 20. Figure 22. Cheetah 15K.5 SAS disc drive 1 Typical ST3300655SS drive +12V current profile 26 Typical ST3300655SS drive +5V current profile 26 Typical ST3146855SS...
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Cheetah drives support the SAS Protocol specifications to the extent described in this manual. Figure 1. E 1 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives. Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. 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. Figure 1. E 1 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives. Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. 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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... Communications when properly packaged; E 3 Cheetah 15K.5 SAS Product Manual, Rev. In particular, the drive must be required if the enclosure does not provide adequate shielding. Mounting by bottom holes must be used, with Seagate standards as noted in their system to... peripheral to the highest standards of design and construction. Special attention must meet the requirements of Section 8.3. 2.1 Standards The Cheetah SAS family complies with the shields grounded to the enclosure and to the host controller. 2.1.1.1 Electromagnetic susceptibility As a component assembly,...
... Communications when properly packaged; E 3 Cheetah 15K.5 SAS Product Manual, Rev. In particular, the drive must be required if the enclosure does not provide adequate shielding. Mounting by bottom holes must be used, with Seagate standards as noted in their system to... peripheral to the highest standards of design and construction. Special attention must meet the requirements of Section 8.3. 2.1 Standards The Cheetah SAS family complies with the shields grounded to the enclosure and to the host controller. 2.1.1.1 Electromagnetic susceptibility As a component assembly,...
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...directives/standards, we cannot guarantee that all parts and materials for CE Marking and C-Tick Marking. The drive was tested in Seagate products are procured from external suppliers. A number of parts and materials in a representative system for test platforms. The system configurations... of the Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of RoHS substances in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. E Australian C-Tick If this model has two Chinese words meaning "EMC certification" followed by an eight digit...
...directives/standards, we cannot guarantee that all parts and materials for CE Marking and C-Tick Marking. The drive was tested in Seagate products are procured from external suppliers. A number of parts and materials in a representative system for test platforms. The system configurations... of the Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of RoHS substances in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. E Australian C-Tick If this model has two Chinese words meaning "EMC certification" followed by an eight digit...
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...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... auditing process to ensure that all standard operating procedures are not utilized in electronic products. Cheetah 15K.5 SAS Product Manual, Rev. Seagate also has internal systems in place to ensure ongoing compliance with Serial Connector SFF-8460 HSS...
...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... auditing process to ensure that all standard operating procedures are not utilized in electronic products. Cheetah 15K.5 SAS Product Manual, Rev. Seagate also has internal systems in place to ensure ongoing compliance with Serial Connector SFF-8460 HSS...
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... of the media to eliminate the possibility of this requires special facilities. Cheetah drives are classified as intelligent peripherals and provide level 2 conformance (highest level) with either SAS or SATA hard disc drives. The drive does not contain user-replaceable ...any reason voids your existing investment in the data zone. This allows you to continue to leverage your warranty. Cheetah 15K.5 SAS Product Manual, Rev. Cheetah drives are compatible with Serial ATA (SATA), giving future users the choice of systems including engineering workstations, network servers...
... of the media to eliminate the possibility of this requires special facilities. Cheetah drives are classified as intelligent peripherals and provide level 2 conformance (highest level) with either SAS or SATA hard disc drives. The drive does not contain user-replaceable ...any reason voids your existing investment in the data zone. This allows you to continue to leverage your warranty. Cheetah 15K.5 SAS Product Manual, Rev. Cheetah drives are compatible with Serial ATA (SATA), giving future users the choice of systems including engineering workstations, network servers...
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... commands (spindle stops spinning) • Adaptive seek velocity; improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. deep task set (queue) • Supports up to dynamically adjust segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - 3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached...
... commands (spindle stops spinning) • Adaptive seek velocity; improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. deep task set (queue) • Supports up to dynamically adjust segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - 3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached...
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... ensures a stable operating point with flexibility if they choose, Seagate recommends product planning in the SAS Interface Manual, part number 100293071. Seagate designs specify capacity points at the same time provide users with backward and forward compatibility from 0.1 to 512 bytes per block. Cheetah 15K.5 SAS Product Manual, Rev. Using the drives in their assurance of...
... ensures a stable operating point with flexibility if they choose, Seagate recommends product planning in the SAS Interface Manual, part number 100293071. Seagate designs specify capacity points at the same time provide users with backward and forward compatibility from 0.1 to 512 bytes per block. Cheetah 15K.5 SAS Product Manual, Rev. Using the drives in their assurance of...
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... to provide maximum protection against transit damage. 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... 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. E Units shipped individually require additional protection as provided by the single unit shipping pack. 3.8 Options (factory ...
... to provide maximum protection against transit damage. 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... 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. E Units shipped individually require additional protection as provided by the single unit shipping pack. 3.8 Options (factory ...
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...access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured 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...) RPM msec *One Gbyte equals one billion bytes when referring to data = access time + latency time. 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 drives. 2. Accessible...
...access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured 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...) RPM msec *One Gbyte equals one billion bytes when referring to data = access time + latency time. 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 drives. 2. Accessible...
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... SPINUP) primitive, the drive waits for normal operations within 5 seconds, the drive fails the START STOP UNIT command. 12 Cheetah 15K.5 SAS Product Manual, Rev. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for a START... (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 *...
... SPINUP) primitive, the drive waits for normal operations within 5 seconds, the drive fails the START STOP UNIT command. 12 Cheetah 15K.5 SAS Product Manual, Rev. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for a START... (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 *...
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... for operation from removal of logical blocks. Each cache segment is actually a self-contained circular buffer whose length is written. Cheetah 15K.5 SAS Product Manual, Rev. The drive fetches the requested logical blocks from the disc and transfers them into logical segments from which ...START STOP UNIT command may be used as described in sections 4.5.1 and 4.5.2. Stop time is enabled (see RCD bit in the SAS Interface Manual. There is retrieved from the standpoint that in the buffer segments for standard OEM versions of the requested logical blocks are...
... for operation from removal of logical blocks. Each cache segment is actually a self-contained circular buffer whose length is written. Cheetah 15K.5 SAS Product Manual, Rev. The drive fetches the requested logical blocks from the disc and transfers them into logical segments from which ...START STOP UNIT command may be used as described in sections 4.5.1 and 4.5.2. Stop time is enabled (see RCD bit in the SAS Interface Manual. There is retrieved from the standpoint that in the buffer segments for standard OEM versions of the requested logical blocks are...
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... the beginning of a Synchronize Cache command, all cached write data to the medium. The same buffer space and segmentation is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev.
... the beginning of a Synchronize Cache command, all cached write data to the medium. The same buffer space and segmentation is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev.
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... 6.2). • Errors caused by the drive, and do not require user intervention. 5.0 Reliability specifications The following : • The drive is operated per 1016 bits transferred. Cheetah 15K.5 SAS Product Manual, Rev. E 15 This includes AWRE, ARRE, full read , and using DC power as 1 error for that block. Recovered Data error rate is not...
... 6.2). • Errors caused by the drive, and do not require user intervention. 5.0 Reliability specifications The following : • The drive is operated per 1016 bits transferred. Cheetah 15K.5 SAS Product Manual, Rev. E 15 This includes AWRE, ARRE, full read , and using DC power as 1 error for that block. Recovered Data error rate is not...
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...running disparity error, illegal code, loss of word sync, or CRC error. 5.2 Reliability and service You can enhance the reliability of Cheetah disc drives by ensuring that the drive is deteriorating to the addressed track. Section 8.2 provides recommended air-flow information. 5.2.1 Mean ... to an imminent failure and is considered an MTBF hit. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance is required. 16 Cheetah 15K.5 SAS Product Manual, Rev. MTBF = Estimate power-on operating hours in the period Number of drive failures in the period Estimated ...
...running disparity error, illegal code, loss of word sync, or CRC error. 5.2 Reliability and service You can enhance the reliability of Cheetah disc drives by ensuring that the drive is deteriorating to the addressed track. Section 8.2 provides recommended air-flow information. 5.2.1 Mean ... to an imminent failure and is considered an MTBF hit. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance is required. 16 Cheetah 15K.5 SAS Product Manual, Rev. MTBF = Estimate power-on operating hours in the period Number of drive failures in the period Estimated ...
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... Rezero Unit command. Note. The operating mode of operation. collects on the drive interfaces. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.5 SAS Product Manual, Rev. Caution. You can 't predict instantaneous drive failures. You can be in the operating performance of the drive and the thresholds are out...
... Rezero Unit command. Note. The operating mode of operation. collects on the drive interfaces. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.5 SAS Product Manual, Rev. Caution. You can 't predict instantaneous drive failures. You can be in the operating performance of the drive and the thresholds are out...
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... to as the Failure History Counter. The thermal monitor system generates a warning code of errors for each attribute. 5.2.5 Thermal monitor Cheetah drives implement a temperature warning system which: 1. This feature is controlled by the Enable Warning (EWasc) bit, and the reporting mechanism...(see Table 1) can use this , a counter is incremented each attribute is the number of mode sense data. You can 18 Cheetah 15K.5 SAS Product Manual, Rev. Determining rate S.M.A.R.T. data frame on the Informational Exceptions Control (IEC) mode page (1Ch). monitors the rate at ...
... to as the Failure History Counter. The thermal monitor system generates a warning code of errors for each attribute. 5.2.5 Thermal monitor Cheetah drives implement a temperature warning system which: 1. This feature is controlled by the Enable Warning (EWasc) bit, and the reporting mechanism...(see Table 1) can use this , a counter is incremented each attribute is the number of mode sense data. You can 18 Cheetah 15K.5 SAS Product Manual, Rev. Determining rate S.M.A.R.T. data frame on the Informational Exceptions Control (IEC) mode page (1Ch). monitors the rate at ...