SAS System Builder Resource Guide: System builders info on the SCSI to SAS transition (258K, PDF)
Page 3
... GBs/watt at idle. Smaller • 70 percent smaller than 3.5-inch drives • 2.5-inch size enables more airflow to cool processors • Result: lower overall costs 2.5-inch Tier 1 Best-Fit Applications • Mainstream enterprise applications • File and print • Blade servers • Rack and tower servers • Storage arrays Seagate Cheetah Drive The Seagate Cheetah 15K.6 and Cheetah...
... GBs/watt at idle. Smaller • 70 percent smaller than 3.5-inch drives • 2.5-inch size enables more airflow to cool processors • Result: lower overall costs 2.5-inch Tier 1 Best-Fit Applications • Mainstream enterprise applications • File and print • Blade servers • Rack and tower servers • Storage arrays Seagate Cheetah Drive The Seagate Cheetah 15K.6 and Cheetah...
Cheetah 15K.5 Product Overview
Page 1
... • Decision support • Storage Area Networks (SAN) • Networked Attached Storage (NAS) • Internet and e-commerce Product Overview Cheetah 15K.5 Best price/performance, lowest cost of ownership disc drive 300, 146 and 73GB • 15K RPM • Ultra320 SCSI 3 Gbit/sec SAS • 4 Gbit/sec FC Key Features and Benefits • Perpendicular recording is...
... • Decision support • Storage Area Networks (SAN) • Networked Attached Storage (NAS) • Internet and e-commerce Product Overview Cheetah 15K.5 Best price/performance, lowest cost of ownership disc drive 300, 146 and 73GB • 15K RPM • Ultra320 SCSI 3 Gbit/sec SAS • 4 Gbit/sec FC Key Features and Benefits • Perpendicular recording is...
Cheetah 15K.5 Product Overview
Page 2
.... All rights reserved. Seagate® designed the Cheetah 15K.5 for storage costeffectiveness. Cheetah 15K.5 incorporates such Seagate-exclusive features as IRAW (Idle Read After Write), enhanced ECC (Error Correction Code) and BMS (Background Media Scan) to safeguard data integrity in the most reliable ever; While doubling available capacity to hard drive capacity. One gigabyte, or GB, equals one billion...
.... All rights reserved. Seagate® designed the Cheetah 15K.5 for storage costeffectiveness. Cheetah 15K.5 incorporates such Seagate-exclusive features as IRAW (Idle Read After Write), enhanced ECC (Error Correction Code) and BMS (Background Media Scan) to safeguard data integrity in the most reliable ever; While doubling available capacity to hard drive capacity. One gigabyte, or GB, equals one billion...
Cheetah 15K.5 Data Sheet
Page 1
Data Sheet Cheetah® 15K.5 Mainstream enterprise hard drive storage 300, 146 and 73 GB • 15K RPM • Ultra320 SCSI, 3-Gb/s Serial Attached SCSI (SAS) and 4-Gb/s FC Key Advantages • Perpendicular recording is fundamentally superior, enabling 300-GB capacity with 30 percent higher sustained data rate. • The Seagate® Cheetah® 15K.5 drive is the first drive to break the 100-MB sustained...
Data Sheet Cheetah® 15K.5 Mainstream enterprise hard drive storage 300, 146 and 73 GB • 15K RPM • Ultra320 SCSI, 3-Gb/s Serial Attached SCSI (SAS) and 4-Gb/s FC Key Advantages • Perpendicular recording is fundamentally superior, enabling 300-GB capacity with 30 percent higher sustained data rate. • The Seagate® Cheetah® 15K.5 drive is the first drive to break the 100-MB sustained...
Cheetah 15K.5 Data Sheet
Page 2
... • Seagate Design Service Centers (DSC) help companies transform innovative ideas into viable products. Specifications 300 GB1 146.8 GB1 73.4 GB1 Model Number Capacity Formatted 512 Kbytes/Sector (GB) External Transfer Rate (MB/s) Ultra320 SCSI 4-Gb/s Fibre Channel 3-Gb/s Serial Attached...award-winning generations. Cheetah® 15K.5 Mainstream enterprise hard drive storage Lowest Cost of Ownership • Fifth-generation Cheetah 15K drive is designed and manufactured by the same teams that data in the drive buffer was properly written. • Seagate-exclusive enhanced Error ...
... • Seagate Design Service Centers (DSC) help companies transform innovative ideas into viable products. Specifications 300 GB1 146.8 GB1 73.4 GB1 Model Number Capacity Formatted 512 Kbytes/Sector (GB) External Transfer Rate (MB/s) Ultra320 SCSI 4-Gb/s Fibre Channel 3-Gb/s Serial Attached...award-winning generations. Cheetah® 15K.5 Mainstream enterprise hard drive storage Lowest Cost of Ownership • Fifth-generation Cheetah 15K drive is designed and manufactured by the same teams that data in the drive buffer was properly written. • Seagate-exclusive enhanced Error ...
Cheetah 15K.5 SCSI Product Manual
Page 3
... 16 5.2 Reliability and service 16 5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 16 5.2.2 Preventive maintenance 16 5.2.3 Hot plugging Cheetah 15K.5 SCSI disc drives 17 5.2.4 S.M.A.R.T 17 5.2.5 Thermal monitor 19 5.2.6 Drive Self Test (DST 19 5.2.7 Product warranty 21 6.0 Physical/electrical specifications 23 6.1 AC power requirements 23 6.2 DC power requirements 23 6.2.1 Conducted noise immunity...
... 16 5.2 Reliability and service 16 5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 16 5.2.2 Preventive maintenance 16 5.2.3 Hot plugging Cheetah 15K.5 SCSI disc drives 17 5.2.4 S.M.A.R.T 17 5.2.5 Thermal monitor 19 5.2.6 Drive Self Test (DST 19 5.2.7 Product warranty 21 6.0 Physical/electrical specifications 23 6.1 AC power requirements 23 6.2 DC power requirements 23 6.2.1 Conducted noise immunity...
Cheetah 15K.5 SCSI Product Manual
Page 4
...33 6.4.6 Corrosive environment 33 6.4.7 Acoustics 34 6.4.8 Electromagnetic susceptibility 34 6.5 Mechanical specifications 34 7.0 Defect and error management 37 7.1 Drive internal defects 37 7.2 Drive error recovery procedures 37 7.3 SCSI systems errors 39 7.4 Background Media Scan 39 7.5 Media Pre-Scan 39 7.6 Deferred Auto-Reallocation... 9.7.1 Multimode-SE and LVD alternatives 70 9.8 Terminator requirements 73 9.9 Terminator power 73 9.10 Disc drive SCSI timing 74 9.11 Drive activity LED 76 10.0 Seagate Technology support services 77 ii Cheetah 15K.5 SCSI Product Manual, Rev.
...33 6.4.6 Corrosive environment 33 6.4.7 Acoustics 34 6.4.8 Electromagnetic susceptibility 34 6.5 Mechanical specifications 34 7.0 Defect and error management 37 7.1 Drive internal defects 37 7.2 Drive error recovery procedures 37 7.3 SCSI systems errors 39 7.4 Background Media Scan 39 7.5 Media Pre-Scan 39 7.6 Deferred Auto-Reallocation... 9.7.1 Multimode-SE and LVD alternatives 70 9.8 Terminator requirements 73 9.9 Terminator power 73 9.10 Disc drive SCSI timing 74 9.11 Drive activity LED 76 10.0 Seagate Technology support services 77 ii Cheetah 15K.5 SCSI Product Manual, Rev.
Cheetah 15K.5 SCSI Product Manual
Page 5
...(LVD 27 ST3146855LC DC current and power vs. IOPS (LVD 29 Locations of Figures Figure 1. Figure 5. Figure 9. Figure 11. Figure 14. IOPS (LVD 28 ST373455LC DC current and power vs. Figure 3. Figure 7. Figure 10. H iii Figure 13. Figure 4. Figure 15. Typical ST3300655LW drive +5 V... SCSI daisy-chain interface cabling for LW drives 63 Nonshielded 68-pin SCSI device connector used on LW drives 64 Nonshielded 80-pin SCSI SCA-2 connector used on LC drives 65 Typical SE-LVD alternative transmitter receiver circuits 71 Cheetah 15K.5 SCSI Product Manual, Rev. Figure ...
...(LVD 27 ST3146855LC DC current and power vs. IOPS (LVD 29 Locations of Figures Figure 1. Figure 5. Figure 9. Figure 11. Figure 14. IOPS (LVD 28 ST373455LC DC current and power vs. Figure 3. Figure 7. Figure 10. H iii Figure 13. Figure 4. Figure 15. Typical ST3300655LW drive +5 V... SCSI daisy-chain interface cabling for LW drives 63 Nonshielded 68-pin SCSI device connector used on LW drives 64 Nonshielded 80-pin SCSI SCA-2 connector used on LC drives 65 Typical SE-LVD alternative transmitter receiver circuits 71 Cheetah 15K.5 SCSI Product Manual, Rev. Figure ...
Cheetah 15K.5 SCSI Product Manual
Page 7
... describes Seagate® Technology LLC, Cheetah® 15K.5 SCSI disc drives. Cheetah 15K.5 SCSI drives support the small computer system interface (SCSI) as "the drive" unless references to the extent described in the ANSI SCSI SPI-4 interface specifications to individual models are necessary. Cheetah 15K.5 SCSI Product Manual, Rev. From this point on in this product manual the reference to Cheetah 15K...
... describes Seagate® Technology LLC, Cheetah® 15K.5 SCSI disc drives. Cheetah 15K.5 SCSI drives support the small computer system interface (SCSI) as "the drive" unless references to the extent described in the ANSI SCSI SPI-4 interface specifications to individual models are necessary. Cheetah 15K.5 SCSI Product Manual, Rev. From this point on in this product manual the reference to Cheetah 15K...
Cheetah 15K.5 SCSI Product Manual
Page 9
...of meeting the Class B limits of the FCC Rules and Regulations of the Canadian Department of the drive serve to meet the requirements of Section 8.4. 2.1 Standards The Cheetah 15K.5 SCSI family complies with the shields grounded to the enclosure and to the host controller. 2.1.2 ... not adversely affect the performance of this Manual, the Seagate Parallel SCSI Interface Manual, part number 100293069, and the SCSI Commands Reference Manual, part number 100293068. 2.0 Applicable standards and reference documentation The drive has been developed as a system peripheral to Subpart B...
...of meeting the Class B limits of the FCC Rules and Regulations of the Canadian Department of the drive serve to meet the requirements of Section 8.4. 2.1 Standards The Cheetah 15K.5 SCSI family complies with the shields grounded to the enclosure and to the host controller. 2.1.2 ... not adversely affect the performance of this Manual, the Seagate Parallel SCSI Interface Manual, part number 100293069, and the SCSI Commands Reference Manual, part number 100293068. 2.0 Applicable standards and reference documentation The drive has been developed as a system peripheral to Subpart B...
Cheetah 15K.5 SCSI Product Manual
Page 10
...and Directive 93/68/EEC of 22 July 1993. This drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for the European Union If this Seagate model complies to the directives/standard(s) for their product....meets the Electromagnetic Compatibility (EMC) Framework requirements of RoHS substances in such parts or materials. 4 Cheetah 15K.5 SCSI Product Manual, Rev. The drive was tested in Seagate products are procured from external suppliers. The selected system represents the most popular characteristics for typical applications...
...and Directive 93/68/EEC of 22 July 1993. This drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for the European Union If this Seagate model complies to the directives/standard(s) for their product....meets the Electromagnetic Compatibility (EMC) Framework requirements of RoHS substances in such parts or materials. 4 Cheetah 15K.5 SCSI Product Manual, Rev. The drive was tested in Seagate products are procured from external suppliers. The selected system represents the most popular characteristics for typical applications...
Cheetah 15K.5 SCSI Product Manual
Page 11
H 5 Cheetah 15K.5 SCSI Product Manual, Rev. Seagate also has internal systems in electronic products. These systems include standard operating procedures that ensure that ...chemical content in place to ensure ongoing compliance with . 2.4 Reference documents Cheetah 15K.5 SCSI Installation Guide Seagate P/N 100384777 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Commands Reference Manual Seagate P/N 100293068 Parallel SCSI Interface Product Manual Seagate P/N 100293069 Applicable ANSI small computer system interface (SCSI) document numbers: ...
H 5 Cheetah 15K.5 SCSI Product Manual, Rev. Seagate also has internal systems in electronic products. These systems include standard operating procedures that ensure that ...chemical content in place to ensure ongoing compliance with . 2.4 Reference documents Cheetah 15K.5 SCSI Installation Guide Seagate P/N 100384777 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Commands Reference Manual Seagate P/N 100293068 Parallel SCSI Interface Product Manual Seagate P/N 100293069 Applicable ANSI small computer system interface (SCSI) document numbers: ...
Cheetah 15K.5 SCSI Product Manual
Page 13
.... The head and disc assembly (HDA) is sealed at the innermost radius of Seagate SCSI drives. H 7 Opening the HDA voids your host adapter supports these data transfer rates ...ST3146855LC ST373455LC Number of active heads 8 4 2 8 4 2 I/O circuit type [1] Single-ended (SE) and low voltage differential (LVD) Single-ended (SE) and low voltage differential (LVD) Number of the I /O connector pins 68 80 [1] See Section 9.6 for backward compatibility with non-Ultra/Ultra2/ Ultra160/Ultra320 SCSI host adapters. Table 1: Drive model number vs. 3.0 General description Cheetah 15K...
.... The head and disc assembly (HDA) is sealed at the innermost radius of Seagate SCSI drives. H 7 Opening the HDA voids your host adapter supports these data transfer rates ...ST3146855LC ST373455LC Number of active heads 8 4 2 8 4 2 I/O circuit type [1] Single-ended (SE) and low voltage differential (LVD) Single-ended (SE) and low voltage differential (LVD) Number of the I /O connector pins 68 80 [1] See Section 9.6 for backward compatibility with non-Ultra/Ultra2/ Ultra160/Ultra320 SCSI host adapters. Table 1: Drive model number vs. 3.0 General description Cheetah 15K...
Cheetah 15K.5 SCSI Product Manual
Page 14
... Test (DST) • Supports SCSI bus fairness 3.2 Media characteristics The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with minimal power dissipation. 3.1 Standard features The Cheetah 15K.5 SCSI family has the following standard features: • Perpendicular recording technology. • Integrated Ultra320 SCSI interface. • Multimode...
... Test (DST) • Supports SCSI bus fairness 3.2 Media characteristics The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with minimal power dissipation. 3.1 Standard features The Cheetah 15K.5 SCSI family has the following standard features: • Perpendicular recording technology. • Integrated Ultra320 SCSI interface. • Multimode...
Cheetah 15K.5 SCSI Product Manual
Page 15
... standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 4.5) • 15k RPM spindle. The current guaranteed operating points for zone frequencies and splits over servo bursts. Cheetah 15K.5 SCSI Product Manual, Rev. H 9 Average latency = 2.0 msec • Command queuing ...Failure Rate (AFR) of two modes: 1. This added capacity potential may range from generation to 512 bytes per block. Seagate drives also may modify the data block size before issuing a format command and obtain different formatted capacities than those listed. To...
... standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 4.5) • 15k RPM spindle. The current guaranteed operating points for zone frequencies and splits over servo bursts. Cheetah 15K.5 SCSI Product Manual, Rev. H 9 Average latency = 2.0 msec • Command queuing ...Failure Rate (AFR) of two modes: 1. This added capacity potential may range from generation to 512 bytes per block. Seagate drives also may modify the data block size before issuing a format command and obtain different formatted capacities than those listed. To...
Cheetah 15K.5 SCSI Product Manual
Page 16
... the maximum capacity. 3.6 Factory installed accessories OEM Standard drives are shipped with each standard OEM drive. The factory also ships with each standard OEM drive. Users planning single unit distribution should specify this option. • The Cheetah 15K.5 Installation Guide, part number 100384777, usually ships with the Cheetah 15K.5 Installation Guide, part number 100384777, and the Safety...
... the maximum capacity. 3.6 Factory installed accessories OEM Standard drives are shipped with each standard OEM drive. The factory also ships with each standard OEM drive. Users planning single unit distribution should specify this option. • The Cheetah 15K.5 Installation Guide, part number 100384777, usually ships with the Cheetah 15K.5 Installation Guide, part number 100384777, and the Safety...
Cheetah 15K.5 SCSI Product Manual
Page 17
Refer to hard drive capacity. Cheetah 15K.5 SCSI Product Manual, Rev. 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Tracks/surface (total) Tracks/inch Peak bits/inch Areal Density Internal data rate Disc rotational speed Average rotational latency ST3300655LW ST3300655LC 300.0 8 74,340 125,000 890k 110 960 to 1607 15k 2.0 ST3146855LW ST3146855LC 146.8 4 74...
Refer to hard drive capacity. Cheetah 15K.5 SCSI Product Manual, Rev. 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Tracks/surface (total) Tracks/inch Peak bits/inch Areal Density Internal data rate Disc rotational speed Average rotational latency ST3300655LW ST3300655LC 300.0 8 74,340 125,000 890k 110 960 to 1607 15k 2.0 ST3146855LW ST3146855LC 146.8 4 74...
Cheetah 15K.5 SCSI Product Manual
Page 18
...no errors and no sector has been relocated. [3] Assumes system ability to support the rates listed and no verify) ST3300655LW ST3300655LC 120 60 ST3146855LW ST3146855LC 90 45 ST373455LW ST373455LC 60 30 4.2.3 Generalized performance characteristics Sustainable disc transfer rate: Minimum [3] 73 Maximum [3] 125 Mbytes/sec Mbytes/sec SCSI ... 512 to data = access time + latency time. 4.2.2 Format command execution time (minutes) [1] Maximum (with verify) Maximum (no cable loss. 12 Cheetah 15K.5 SCSI Product Manual, Rev. H Access to 528 bytes per sector in even number of...
...no errors and no sector has been relocated. [3] Assumes system ability to support the rates listed and no verify) ST3300655LW ST3300655LC 120 60 ST3146855LW ST3146855LC 90 45 ST373455LW ST373455LC 60 30 4.2.3 Generalized performance characteristics Sustainable disc transfer rate: Minimum [3] 73 Maximum [3] 125 Mbytes/sec Mbytes/sec SCSI ... 512 to data = access time + latency time. 4.2.2 Format command execution time (minutes) [1] Maximum (with verify) Maximum (no cable loss. 12 Cheetah 15K.5 SCSI Product Manual, Rev. H Access to 528 bytes per sector in even number of...
Cheetah 15K.5 SCSI Product Manual
Page 19
... DC power has been applied. Stop time is disabled (i.e., the motor starts as soon as circular buffer segments during the start sequence, the drive executes a recovery procedure which data is initiated. Prefetch and cache operation are given in Section 4.5.1 and Section 4.5.2. Of the 16 Mbytes physical...is received and all of the requested logical blocks are in less than 3 seconds after application of the data stored in cache operations. Cheetah 15K.5 SCSI Product Manual, Rev. If the Motor Start Option is no power control switch on the way to exceed 20 seconds. There ...
... DC power has been applied. Stop time is disabled (i.e., the motor starts as soon as circular buffer segments during the start sequence, the drive executes a recovery procedure which data is initiated. Prefetch and cache operation are given in Section 4.5.1 and Section 4.5.2. Of the 16 Mbytes physical...is received and all of the requested logical blocks are in less than 3 seconds after application of the data stored in cache operations. Cheetah 15K.5 SCSI Product Manual, Rev. If the Motor Start Option is no power control switch on the way to exceed 20 seconds. There ...
Cheetah 15K.5 SCSI Product Manual
Page 20
...that are to the medium is retained in the buffer is a prefetch hit, not a cache operation hit. DRA bit = 0 enables prefetch. The drive disables prefetch when it decides that a prefetch hit will likely occur. The wrap-around capability of the segment. Sending a size specification using the Mode ... makes use of the segment is reached, the data is written into the cache, but before the data has been written to occur. 14 Cheetah 15K.5 SCSI Product Manual, Rev. Each cache segment is actually a self-contained circular buffer whose length is an integer number of a Synchronize Cache command...
...that are to the medium is retained in the buffer is a prefetch hit, not a cache operation hit. DRA bit = 0 enables prefetch. The drive disables prefetch when it decides that a prefetch hit will likely occur. The wrap-around capability of the segment. Sending a size specification using the Mode ... makes use of the segment is reached, the data is written into the cache, but before the data has been written to occur. 14 Cheetah 15K.5 SCSI Product Manual, Rev. Each cache segment is actually a self-contained circular buffer whose length is an integer number of a Synchronize Cache command...