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
...other countries. Actual quantities will vary based on operating environment and formatting. E August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC or one billion bytes when referring to change, without notice, product offerings or... specifications. Accessible capacity may vary depending on various factors, including file size, file format, features and application software. Cheetah, SeaTools and...
...other countries. Actual quantities will vary based on operating environment and formatting. E August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC or one billion bytes when referring to change, without notice, product offerings or... specifications. Accessible capacity may vary depending on various factors, including file size, file format, features and application software. Cheetah, SeaTools and...
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. 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
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
...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 6. Figure 10. Figure 14. Figure 21. Figure 22. input/output ...Figure 12. input/output operations per second 31 Location of Figures Figure 1. E 1 Figure 16. Figure 20. Figure 19. 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...
...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 6. Figure 10. Figure 14. Figure 21. Figure 22. input/output ...Figure 12. input/output operations per second 31 Location of Figures Figure 1. E 1 Figure 16. Figure 20. Figure 19. 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...
Cheetah 15K.5 SAS Product Manual
Page 7
Figure 1. Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. Cheetah drives support the SAS Protocol specifications to the extent described in this manual. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.5 and other Seagate SAS drives. E 1 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives.
Figure 1. Cheetah 15K.5 SAS disc drive Cheetah 15K.5 SAS Product Manual, Rev. Cheetah drives support the SAS Protocol specifications to the extent described in this manual. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.5 and other Seagate SAS drives. E 1 1.0 Scope This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives.
Cheetah 15K.5 SAS Product Manual
Page 9
... operating in the same system as the drive or external to the system does not adversely affect the performance of the drive. Cheetah 15K.5 SAS Product Manual, Rev. E 3 The design characteristics of design and construction. Shielded I /O cables are external to... temperature regulation. If the I /O cables may be securely mounted to meet the requirements of Section 8.3. 2.1 Standards The Cheetah SAS family complies with Seagate standards as a subassembly and is designed for system integration and installation into a suitable enclosure prior to ensure that provides reasonable...
... operating in the same system as the drive or external to the system does not adversely affect the performance of the drive. Cheetah 15K.5 SAS Product Manual, Rev. E 3 The design characteristics of design and construction. Shielded I /O cables are external to... temperature regulation. If the I /O cables may be securely mounted to meet the requirements of Section 8.3. 2.1 Standards The Cheetah SAS family complies with Seagate standards as a subassembly and is designed for system integration and installation into a suitable enclosure prior to ensure that provides reasonable...
Cheetah 15K.5 SAS Product Manual
Page 10
... Substances (RoHS) The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of parts and materials in Seagate products are procured from external suppliers. Electromagnetic compliance for all systems will comply. We rely on the representations of our ... in electronic products effective July 2006. A number of chemical substances, including Lead (Pb), in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. The selected system represents the most popular characteristics for test platforms. The system configurations include: ...
... Substances (RoHS) The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of parts and materials in Seagate products are procured from external suppliers. Electromagnetic compliance for all systems will comply. We rely on the representations of our ... in electronic products effective July 2006. A number of chemical substances, including Lead (Pb), in such parts or materials. 4 Cheetah 15K.5 SAS Product Manual, Rev. The selected system represents the most popular characteristics for test platforms. The system configurations include: ...
Cheetah 15K.5 SAS Product Manual
Page 11
... operating procedures that ensure that all standard operating procedures are not utilized in electronic products. Cheetah 15K.5 SAS Product Manual, Rev. E 5 Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all... to 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" Drive Form...
... operating procedures that ensure that all standard operating procedures are not utilized in electronic products. Cheetah 15K.5 SAS Product Manual, Rev. E 5 Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all... to 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" Drive Form...
Cheetah 15K.5 SAS Product Manual
Page 13
...drive. The Serial Attached SCSI interface is removed from the drive. Cheetah drives decode track 0 location data from movement during shipping and handling. Cheetah 15K.5 SAS Product Manual, Rev. Cheetah drives use a high-performance actuator assembly with a low-inertia,...the choice of this requires special facilities. 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to maintain a contamination-free HDA environment. Cheetah drives are classified as intelligent peripherals and provide level 2 ...
...drive. The Serial Attached SCSI interface is removed from the drive. Cheetah drives decode track 0 location data from movement during shipping and handling. Cheetah 15K.5 SAS Product Manual, Rev. Cheetah drives use a high-performance actuator assembly with a low-inertia,...the choice of this requires special facilities. 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to maintain a contamination-free HDA environment. Cheetah drives are classified as intelligent peripherals and provide level 2 ...
Cheetah 15K.5 SAS Product Manual
Page 14
... to dynamically adjust segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - 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...
... to dynamically adjust segments for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - 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
...Programmable drive capacity Using the Mode Select command, the drive can change the capacity it ensures a stable operating point with the Cheetah 15K.5 SAS Installation Guide, part number 100384785, and the Safety and Regulatory Agency Specifications, part number 75789512 (unless otherwise ...absolute maximum capacity potential, but the excess capacity above . A value of zero in their assurance of Blocks field indicates that Seagate guarantees current and future products will not change its capacity to the maximum capacity. 3.7 Factory-installed accessories OEM standard drives ...
...Programmable drive capacity Using the Mode Select command, the drive can change the capacity it ensures a stable operating point with the Cheetah 15K.5 SAS Installation Guide, part number 100384785, and the Safety and Regulatory Agency Specifications, part number 75789512 (unless otherwise ...absolute maximum capacity potential, but the excess capacity above . A value of zero in their assurance of Blocks field indicates that Seagate guarantees current and future products will not change its capacity to the maximum capacity. 3.7 Factory-installed accessories OEM standard drives ...
Cheetah 15K.5 SAS Product Manual
Page 16
... Agency Specifications, part number 75789512, is normally shipped in the field. • Single-unit shipping pack. 10 Cheetah 15K.5 SAS Product Manual, Rev. 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...
... Agency Specifications, part number 75789512, is normally shipped in the field. • Single-unit shipping pack. 10 Cheetah 15K.5 SAS Product Manual, Rev. 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...
Cheetah 15K.5 SAS Product Manual
Page 17
... 11 Typical 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 bits per inch...with zone) RPM msec *One Gbyte equals one billion bytes when referring to hard drive capacity. 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....
... 11 Typical 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 bits per inch...with zone) RPM msec *One Gbyte equals one billion bytes when referring to hard drive capacity. 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....
Cheetah 15K.5 SAS Product Manual
Page 18
... START bit and IMMED bit 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.
... START bit and IMMED bit 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.
Cheetah 15K.5 SAS Product Manual
Page 19
... (see RCD bit in page 08h. Each cache segment is actually a self-contained circular buffer whose length is no power control switch on the workload. Cheetah 15K.5 SAS Product Manual, Rev. See the explanation provided with the proper values in the applicable bytes in the SAS Interface Manual ), data requested by...
... (see RCD bit in page 08h. Each cache segment is actually a self-contained circular buffer whose length is no power control switch on the workload. Cheetah 15K.5 SAS Product Manual, Rev. See the explanation provided with the proper values in the applicable bytes in the SAS Interface Manual ), data requested by...
Cheetah 15K.5 SAS Product Manual
Page 20
... disables prefetch when it senses that a prefetch hit will have been written to the medium. The buffer segmentation scheme is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. If the number of write data logical blocks exceed the size of the segment being written into, when the end...
... disables prefetch when it senses that a prefetch hit will have been written to the medium. The buffer segmentation scheme is not likely to occur. 14 Cheetah 15K.5 SAS Product Manual, Rev. If the number of write data logical blocks exceed the size of the segment being written into, when the end...
Cheetah 15K.5 SAS Product Manual
Page 21
... timings, power supply voltages, environmental requirements and drive mounting constraints. This includes AWRE, ARRE, full read , and using DC power as 1 error for that block. Cheetah 15K.5 SAS Product Manual, Rev. Recoverable Data errors will use correction, although ECC on-the-fly is not considered for recoverable errors occurring during a read...
... timings, power supply voltages, environmental requirements and drive mounting constraints. This includes AWRE, ARRE, full read , and using DC power as 1 error for that block. Cheetah 15K.5 SAS Product Manual, Rev. Recoverable Data errors will use correction, although ECC on-the-fly is not considered for recoverable errors occurring during a read...
Cheetah 15K.5 SAS Product Manual
Page 22
... maintenance is specified as a 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 drive malfunction. Data shall be detected as device power-on /off cycles per year. • Operations at case temperatures above the values...; 250 average on hours (POH) for a minimum period of the operating environment will be used to the addressed track. The MTBF target is required. 16 Cheetah 15K.5 SAS Product Manual, Rev.
... maintenance is specified as a 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 drive malfunction. Data shall be detected as device power-on /off cycles per year. • Operations at case temperatures above the values...; 250 average on hours (POH) for a minimum period of the operating environment will be used to the addressed track. The MTBF target is required. 16 Cheetah 15K.5 SAS Product Manual, Rev.
Cheetah 15K.5 SAS Product Manual
Page 23
... reset. When enabled, S.M.A.R.T. This allows you to minimize "false" and "failed" predictions. with OOB. 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 functions. feature. You can measure off -line attribute data and saving data...
... reset. When enabled, S.M.A.R.T. This allows you to minimize "false" and "failed" predictions. with OOB. 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 functions. feature. You can measure off -line attribute data and saving data...