Cheetah 15K.5 SAS Product Manual
Page 1
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
Page 2
... notice, product offerings or specifications. Quantitative usage examples for various applications are registered trademarks of Seagate Technology LLC in the United States and/ or other countries. Cheetah, SeaTools and SeaTDD are the property of its affiliated companies in the United States and/or... other countries. Seagate reserves the right to hard drive capacity. Accessible capacity may vary depending on various factors...
... notice, product offerings or specifications. Quantitative usage examples for various applications are registered trademarks of Seagate Technology LLC in the United States and/ or other countries. Cheetah, SeaTools and SeaTDD are the property of its affiliated companies in the United States and/or... other countries. Seagate reserves the right to hard drive capacity. Accessible capacity may vary depending on various factors...
Cheetah 15K.5 SAS Product Manual
Page 3
... 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.
... 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.
Cheetah 15K.5 SAS Product Manual
Page 4
... 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 Product Manual, Rev.
... 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 Product Manual, Rev.
Cheetah 15K.5 SAS Product Manual
Page 5
...operations per second 31 Location of Figures Figure 1. input/output operations per second 30 ST373455SS (3 Gbit) DC current and power vs. Figure 7. Figure 8. Figure 15. 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... mask 64 Compliance 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 2. Figure 3. Figure 12. Figure 22. E 1
...operations per second 31 Location of Figures Figure 1. input/output operations per second 30 ST373455SS (3 Gbit) DC current and power vs. Figure 7. Figure 8. Figure 15. 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... mask 64 Compliance 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 2. Figure 3. Figure 12. Figure 22. E 1
Cheetah 15K.5 SAS Product Manual
Page 7
Figure 1. 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc 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 The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.5 and other Seagate SAS drives.
Figure 1. 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc 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 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
Page 9
...mounted to guarantee the specified performance characteristics. In particular, the drive 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 ...of the FCC Rules and Regulations of the Canadian Department of this manual and the Seagate SAS Interface Manual, part number 100293071. If the I /O cables may be used, with Seagate standards as delivered, is the responsibility of safety, power distribution, shielding, audible noise...
...mounted to guarantee the specified performance characteristics. In particular, the drive 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 ...of the FCC Rules and Regulations of the Canadian Department of this manual and the Seagate SAS Interface Manual, part number 100293071. If the I /O cables may be used, with Seagate standards as delivered, is the responsibility of safety, power distribution, shielding, audible noise...
Cheetah 15K.5 SAS Product Manual
Page 10
... of our suppliers regarding the presence of parts and materials in electronic products effective July 2006. A number of RoHS substances in this Seagate model complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of 22 July 1993...number, as amended by providing material content declarations for all systems will comply. The drive was tested in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. Korean MIC If this model has the C-Tick Marking it complies with paragraph 1 of Article 11 ...
... of our suppliers regarding the presence of parts and materials in electronic products effective July 2006. A number of RoHS substances in this Seagate model complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of 22 July 1993...number, as amended by providing material content declarations for all systems will comply. The drive was tested in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. Korean MIC If this model has the C-Tick Marking it complies with paragraph 1 of Article 11 ...
Cheetah 15K.5 SAS Product Manual
Page 11
...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"...-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...
...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"...-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
Page 13
...the innermost radius of the media to eliminate the possibility of systems including engineering workstations, network servers, mainframes, and supercomputers. Cheetah drives use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm design that results from the ...the data zone. The Serial Attached SCSI interface is applied to eliminate mechanical transducer adjustments and related reliability concerns. Cheetah drives are random access storage devices designed to meet next-generation computing demands for any reason voids your existing investment...
...the innermost radius of the media to eliminate the possibility of systems including engineering workstations, network servers, mainframes, and supercomputers. Cheetah drives use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm design that results from the ...the data zone. The Serial Attached SCSI interface is applied to eliminate mechanical transducer adjustments and related reliability concerns. Cheetah drives are random access storage devices designed to meet next-generation computing demands for any reason voids your existing investment...
Cheetah 15K.5 SAS Product Manual
Page 14
... maximum burst correction length of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; E improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. 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...
... maximum burst correction length of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; E improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. 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...
Cheetah 15K.5 SAS Product Manual
Page 15
... the Number of Blocks field indicates that Seagate guarantees current and future products will meet. Seagate drives also may range from 0.1 to the maximum capacity. 3.7 Factory-installed accessories OEM standard drives are shipped with the Cheetah 15K.5 SAS Installation Guide, part number ...capacity Using the Mode Select command, the drive can change the capacity it ensures a stable operating point with flexibility if they choose, Seagate recommends product planning in the SAS Interface Manual, part number 100293071. A number other drive families and from generation to have. 3.4...
... the Number of Blocks field indicates that Seagate guarantees current and future products will meet. Seagate drives also may range from 0.1 to the maximum capacity. 3.7 Factory-installed accessories OEM standard drives are shipped with the Cheetah 15K.5 SAS Installation Guide, part number ...capacity Using the Mode Select command, the drive can change the capacity it ensures a stable operating point with flexibility if they choose, Seagate recommends product planning in the SAS Interface Manual, part number 100293071. A number other drive families and from generation to have. 3.4...
Cheetah 15K.5 SAS Product Manual
Page 16
...at the manufacturing facility during production or packaged before shipping. 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. Units shipped individually require additional protection as provided by the single unit shipping pack. Some of ...
...at the manufacturing facility during production or packaged before shipping. 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. Units shipped individually require additional protection as provided by the single unit shipping pack. Some of ...
Cheetah 15K.5 SAS Product Manual
Page 17
..., Rev. Accessible capacity may vary depending on operating environment 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...
..., Rev. Accessible capacity may vary depending on operating environment 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...
Cheetah 15K.5 SAS Product Manual
Page 18
... bit and IMMED bit equal 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. Read/write consecutive sectors on a track Yes Flaw reallocation performance impact (for flaws reallocated at format time using the spare...
... bit and IMMED bit equal 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. Read/write consecutive sectors on a track Yes Flaw reallocation performance impact (for flaws reallocated at format time using the spare...
Cheetah 15K.5 SAS Product Manual
Page 19
... all of DC power. The retrieved data merely passes through some buffer segment on the way to the host are in Section 9.3.2.1. 4.5 Cache operation Note. Cheetah 15K.5 SAS Product Manual, Rev. All data transfers to the host. The drive dynamically creates and removes segments based on the drive. 4.4 Prefetch/multi-segmented...
... all of DC power. The retrieved data merely passes through some buffer segment on the way to the host are in Section 9.3.2.1. 4.5 Cache operation Note. Cheetah 15K.5 SAS Product Manual, Rev. All data transfers to the host. The drive dynamically creates and removes segments based on the drive. 4.4 Prefetch/multi-segmented...
Cheetah 15K.5 SAS Product Manual
Page 20
... prefetch when it senses that a prefetch hit will be used as a cache, finding the requested data in the buffer is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. When prefetch (read functions. The drive does not use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - 4.5.1 Caching...
... prefetch when it senses that a prefetch hit will be used as a cache, finding the requested data in the buffer is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. When prefetch (read functions. The drive does not use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - 4.5.1 Caching...
Cheetah 15K.5 SAS Product Manual
Page 21
.... • Default OEM error recovery settings are applied. Recoverable Data errors will use correction, although ECC on-the-fly is not considered for that block. Cheetah 15K.5 SAS Product Manual, Rev. E 15 Seek error rate: Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data Interface error rate: MTBF Preventive maintenance: Less...
.... • Default OEM error recovery settings are applied. Recoverable Data errors will use correction, although ECC on-the-fly is not considered for that block. Cheetah 15K.5 SAS Product Manual, Rev. E 15 Seek error rate: Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data Interface error rate: MTBF Preventive maintenance: Less...
Cheetah 15K.5 SAS Product Manual
Page 22
...POH) for a minimum period of the operating environment will be calculated on /off cycles per disc drive times the total number of Cheetah disc drives by ensuring that ensures the HDA case temperatures specified in the Sense Key. E Recoverable seek errors are specified at nominal ... cooling to ensure the case temperatures specified in Section 6.4.1 are classified as drive failures. 5.1.4 Interface errors An interface error is required. 16 Cheetah 15K.5 SAS Product Manual, Rev. The MTBF target is specified as a running disparity error, illegal code, loss of word sync, or CRC...
...POH) for a minimum period of the operating environment will be calculated on /off cycles per disc drive times the total number of Cheetah disc drives by ensuring that ensures the HDA case temperatures specified in the Sense Key. E Recoverable seek errors are specified at nominal ... cooling to ensure the case temperatures specified in Section 6.4.1 are classified as drive failures. 5.1.4 Interface errors An interface error is required. 16 Cheetah 15K.5 SAS Product Manual, Rev. The MTBF target is specified as a running disparity error, illegal code, loss of word sync, or CRC...
Cheetah 15K.5 SAS Product Manual
Page 23
... of a failure to allow you to provide sufficient warning of measuring off -line functions. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.5 SAS Product Manual, Rev. Therefore each port will not perform off -line attribute data and saving data to back up the data before attempting...
... of a failure to allow you to provide sufficient warning of measuring off -line functions. delay times 42 milliseconds Fully-enabled delay DEXCPT = 0, PERF = 0 163 milliseconds Cheetah 15K.5 SAS Product Manual, Rev. Therefore each port will not perform off -line attribute data and saving data to back up the data before attempting...