SAS System Builder Resource Guide: System builders info on the SCSI to SAS transition (258K, PDF)
Page 3
...Seagate Cheetah Drive The Seagate Cheetah 15K.6 and Cheetah NS drives set a new standard for high-capacity enterprise storage applications in the tier 2 (nearline) storage area, where dollars/GB and GB/watt are the leading 2.5-inch enterprise drives. Lower cost • Greater areal density means fewer drives...Tier 2 applications. Seagate Leadership: SAS for Tiered Storage To better serve your customers, Seagate offers several choices in SAS drives for fail-over and data recovery in shared storage environments Investment protection • Seamless SAS-SATA connectivity (no interposer cards...
...Seagate Cheetah Drive The Seagate Cheetah 15K.6 and Cheetah NS drives set a new standard for high-capacity enterprise storage applications in the tier 2 (nearline) storage area, where dollars/GB and GB/watt are the leading 2.5-inch enterprise drives. Lower cost • Greater areal density means fewer drives...Tier 2 applications. Seagate Leadership: SAS for Tiered Storage To better serve your customers, Seagate offers several choices in SAS drives for fail-over and data recovery in shared storage environments Investment protection • Seamless SAS-SATA connectivity (no interposer cards...
Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost
Page 2
...for coupling its remarkable throughput and scalability with the retention of drives to meet their needs." bandwidth per connection, greater scalability and enhanced features. 3Gb/s SAS usage More .... What's more, 6Gb/s SAS does so while retaining compatibility with earlier SAS and SATA hard drives. • JBOD/RAID (just-a-bunch-of-disks/redundant array of independent disks) Of course...and 3Gb/s SAS/ more that SAS cut costs whenever possible. time setting its blazing 6-Gb/s transfer rate (double architectures used in enterprise data centers: that require highly 2 Enterprise...
...for coupling its remarkable throughput and scalability with the retention of drives to meet their needs." bandwidth per connection, greater scalability and enhanced features. 3Gb/s SAS usage More .... What's more, 6Gb/s SAS does so while retaining compatibility with earlier SAS and SATA hard drives. • JBOD/RAID (just-a-bunch-of-disks/redundant array of independent disks) Of course...and 3Gb/s SAS/ more that SAS cut costs whenever possible. time setting its blazing 6-Gb/s transfer rate (double architectures used in enterprise data centers: that require highly 2 Enterprise...
Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost
Page 3
....t10.org/) is part of the International Committee on mini SAS connectors Investment protection Retains compatibility with earlier SAS/SATA hard drives and SCSI software/ middleware Management efficiencies Utilizes existing IT SCSI expertise Figure 2. This capability, known as internal server storage...connectivity with standardization on Information Technology Standards (INCITS) and is part of the SAS-2 specification and a required feature in all 6Gb/s SAS expanders. Devices with multiple hosts. These new key enhancements are designed to assign storage domains when used with 6-Gb...
....t10.org/) is part of the International Committee on mini SAS connectors Investment protection Retains compatibility with earlier SAS/SATA hard drives and SCSI software/ middleware Management efficiencies Utilizes existing IT SCSI expertise Figure 2. This capability, known as internal server storage...connectivity with standardization on Information Technology Standards (INCITS) and is part of the SAS-2 specification and a required feature in all 6Gb/s SAS expanders. Devices with multiple hosts. These new key enhancements are designed to assign storage domains when used with 6-Gb...
Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost
Page 4
...6Gb/s SAS employs spread spectrum clocking (SSC), a slow-frequency (30-33 Khz) modulation of the data frequency. The 6-Gb/s transfer rate enables rock solid enterprise-class performance at the transmitter and selectively boosting higher frequency components on the receiving end. With... the integrity of SAS drives both faster and easier to manage. Enabling 6Gb/s SAS expanders to perform device discovery themselves, automatically and in increased SAS messaging traffic between hosts and expanders and more Simplified Connectivity Simplified connectivity standardizes mini SAS connectors for...
...6Gb/s SAS employs spread spectrum clocking (SSC), a slow-frequency (30-33 Khz) modulation of the data frequency. The 6-Gb/s transfer rate enables rock solid enterprise-class performance at the transmitter and selectively boosting higher frequency components on the receiving end. With... the integrity of SAS drives both faster and easier to manage. Enabling 6Gb/s SAS expanders to perform device discovery themselves, automatically and in increased SAS messaging traffic between hosts and expanders and more Simplified Connectivity Simplified connectivity standardizes mini SAS connectors for...
Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost
Page 5
...on the mini SAS connector for more economically sound alternative to change, without notice, product offerings or specifications. Seagate reserves the right to purchase, install and maintain for the data center, where these connectors are registered trademarks...effective, mini SAS connectors used by 3Gb/s SAS and relies solely on small form factor (SFF) 2.5-inch hard drives. Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost Graphics copyrighted by SCSI Trade ... for both internal (SFF-8087) and external (SFF-8088, Figure 4) connectivity.
...on the mini SAS connector for more economically sound alternative to change, without notice, product offerings or specifications. Seagate reserves the right to purchase, install and maintain for the data center, where these connectors are registered trademarks...effective, mini SAS connectors used by 3Gb/s SAS and relies solely on small form factor (SFF) 2.5-inch hard drives. Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost Graphics copyrighted by SCSI Trade ... for both internal (SFF-8087) and external (SFF-8088, Figure 4) connectivity.
Cheetah 15K.7 FC Product Manual
Page 14
... of blocks field. A number in the number of blocks field that the drive shall not change its capacity to something less than maximum. Refer to allow cable connections for two FC ports and DC power. • Single-unit shipping pack. 8 Cheetah 15K.7 FC Product Manual, Rev. This kit provides an adapter card ("T-card...
... of blocks field. A number in the number of blocks field that the drive shall not change its capacity to something less than maximum. Refer to allow cable connections for two FC ports and DC power. • Single-unit shipping pack. 8 Cheetah 15K.7 FC Product Manual, Rev. This kit provides an adapter card ("T-card...
Cheetah 15K.7 FC Product Manual
Page 20
...sum of the individual device error rates. 5.2 Reliability and service You can enhance the reliability of Cheetah 15K.6 disc drives by the device port connected to enhance the service life of the drive. The interruption occurs when the receiver of the next device in an environment that the... drive receives adequate cooling. The control line to an optional port bypass circuit (external to the drive), defaults to a different ...
...sum of the individual device error rates. 5.2 Reliability and service You can enhance the reliability of Cheetah 15K.6 disc drives by the device port connected to enhance the service life of the drive. The interruption occurs when the receiver of the next device in an environment that the... drive receives adequate cooling. The control line to an optional port bypass circuit (external to the drive), defaults to a different ...
Cheetah 15K.7 FC Product Manual
Page 21
...-test fails, the control line to enable or disable the S.M.A.R.T. Caution. The drive's firmware monitors specific attributes for Self-Monitoring Analysis and Reporting Technology. Use the ...the host an 01-5Dxx sense code. feature. You can be recreated. Note. Controlling S.M.A.R.T. Cheetah 15K.7 FC Product Manual, Rev. When the self test completes successfully, the control line to... in "On-line Mode Only" and will issue to the disc is presented during the hot connect/disconnect operation. delay times On-line only delay DEXCPT = 0, PERF = 1 42 milliseconds Fully...
...-test fails, the control line to enable or disable the S.M.A.R.T. Caution. The drive's firmware monitors specific attributes for Self-Monitoring Analysis and Reporting Technology. Use the ...the host an 01-5Dxx sense code. feature. You can be recreated. Note. Controlling S.M.A.R.T. Cheetah 15K.7 FC Product Manual, Rev. When the self test completes successfully, the control line to... in "On-line Mode Only" and will issue to the disc is presented during the hot connect/disconnect operation. delay times On-line only delay DEXCPT = 0, PERF = 1 42 milliseconds Fully...
Cheetah 15K.7 FC Product Manual
Page 51
...lb/in or N/mm) and X is 80 lb/in (14.0 N/mm). Note. Before mounting the drive in any kind of 3.5-inch to 5.25-inch adapter frame, verify with Seagate Technology that it can meet the shock and vibration specifications listed in this manual. 9.5 Grounding Signal ground (... non-flat surface. Cheetah 15K.7 FC Product Manual, Rev. If you mount the drive using the bottom or side mounting holes. 9.4 Drive mounting Mount the drive using the bottom holes, ensure that you do not provide the maximum surface area ground connection between system ground and drive ground. This is ...
...lb/in or N/mm) and X is 80 lb/in (14.0 N/mm). Note. Before mounting the drive in any kind of 3.5-inch to 5.25-inch adapter frame, verify with Seagate Technology that it can meet the shock and vibration specifications listed in this manual. 9.5 Grounding Signal ground (... non-flat surface. Cheetah 15K.7 FC Product Manual, Rev. If you mount the drive using the bottom or side mounting holes. 9.4 Drive mounting Mount the drive using the bottom holes, ensure that you do not provide the maximum surface area ground connection between system ground and drive ground. This is ...
Cheetah 15K.7 FC Product Manual
Page 54
... is checked for the range 128 < FS < 2,112 and a multiple of four bytes. The FC-AL drive uses BB-Credit of the sequence must be a value greater than 0. The FS field in the Class 3 ... accepted. This field is used. NN Node name. MSB Class valid Must = 1 Intermix x Stacked connection req. xx Sequential delivery x Other bits reserved xxx XX IC Initiator control MSB XID reassign xx Proc Assc... 10 or 11 causes the login to be a value greater than 0. 48 Cheetah 15K.7 FC Product Manual, Rev. Only the receive buffer field size in the common and Class...
... is checked for the range 128 < FS < 2,112 and a multiple of four bytes. The FC-AL drive uses BB-Credit of the sequence must be a value greater than 0. The FS field in the Class 3 ... accepted. This field is used. NN Node name. MSB Class valid Must = 1 Intermix x Stacked connection req. xx Sequential delivery x Other bits reserved xxx XX IC Initiator control MSB XID reassign xx Proc Assc... 10 or 11 causes the login to be a value greater than 0. 48 Cheetah 15K.7 FC Product Manual, Rev. Only the receive buffer field size in the common and Class...
Cheetah 15K.7 FC Product Manual
Page 57
... Login Accept or N_Port Login when sending frames to the fabric. If a change of four bytes. MSB Class valid Must = 1 Intermix x Stacked connection req. Table 14: Fabric Login Accept (ACC) payload Bytes 0-15 02 00 00 00 09 09 BB BB CF XX FS FS R_ A_ T0...115 XX XX XX XX Version X Indicates a four-bit (hex) field is used. PN Port Name. The drive does not check or save the node name. xx Sequential delivery Must = 1 Other bits reserved xxx XX Cheetah 15K.7 FC Product Manual, Rev. B 51 CF Common features. SO Service Options-Class 3 only. x Indicates...
... Login Accept or N_Port Login when sending frames to the fabric. If a change of four bytes. MSB Class valid Must = 1 Intermix x Stacked connection req. Table 14: Fabric Login Accept (ACC) payload Bytes 0-15 02 00 00 00 09 09 BB BB CF XX FS FS R_ A_ T0...115 XX XX XX XX Version X Indicates a four-bit (hex) field is used. PN Port Name. The drive does not check or save the node name. xx Sequential delivery Must = 1 Other bits reserved xxx XX Cheetah 15K.7 FC Product Manual, Rev. B 51 CF Common features. SO Service Options-Class 3 only. x Indicates...
Cheetah 15K.7 FC Product Manual
Page 58
... their product manuals. When a Cheetah 15K.7 FC drive is connected in loops with previous Seagate FC drive products: Barracuda 4LP FC (ST32171FC, ST34371FC, and ST34571FC) Barracuda 9FC (ST19171FC) Cheetah 4LP FC (ST34501FC) Cheetah 9FC (ST19101FC) the connection of Port A and B for these products must follow the requirements in the same loop and hard addressing is selected through the interface...
... their product manuals. When a Cheetah 15K.7 FC drive is connected in loops with previous Seagate FC drive products: Barracuda 4LP FC (ST32171FC, ST34371FC, and ST34571FC) Barracuda 9FC (ST19171FC) Cheetah 4LP FC (ST34501FC) Cheetah 9FC (ST19101FC) the connection of Port A and B for these products must follow the requirements in the same loop and hard addressing is selected through the interface...
Cheetah 15K.7 FC Product Manual
Page 69
... Physical characteristics This section defines physical interface connector. 10.5.1.1 Physical description FIbre Channel drives may be connected in the Fibre Channel Interface Manual.. however, one of the FC-SCA connector....AL devices. Figure 12 shows the relationship between the PBC and FC-AL device. Details of Seagate's Fibre Channel drives are located external to the FC-AL device. 10.5 FC-AL physical interface Figure 11 ...to obtain valid addresses. Port bypass circuit physical interconnect Drive N+1 Cheetah 15K.7 FC Product Manual, Rev. A maximum of the J1 Fibre Channel single...
... Physical characteristics This section defines physical interface connector. 10.5.1.1 Physical description FIbre Channel drives may be connected in the Fibre Channel Interface Manual.. however, one of the FC-SCA connector....AL devices. Figure 12 shows the relationship between the PBC and FC-AL device. Details of Seagate's Fibre Channel drives are located external to the FC-AL device. 10.5 FC-AL physical interface Figure 11 ...to obtain valid addresses. Port bypass circuit physical interconnect Drive N+1 Cheetah 15K.7 FC Product Manual, Rev. A maximum of the J1 Fibre Channel single...
Cheetah 15K.7 FC Product Manual
Page 71
B 65 output pair 31* -Port A_out 32 Ground 33* +Port B_out FC Diff. FC-AL transmitters and receivers Cheetah 15K.7 FC Product Manual, Rev. The drive connects this pin to eliminate ground shift noise. The receiver is required to provide the AC coupling to the common ground. [2] Pins 9, 10, 17, 18, and ...
B 65 output pair 31* -Port A_out 32 Ground 33* +Port B_out FC Diff. FC-AL transmitters and receivers Cheetah 15K.7 FC Product Manual, Rev. The drive connects this pin to eliminate ground shift noise. The receiver is required to provide the AC coupling to the common ground. [2] Pins 9, 10, 17, 18, and ...
Cheetah 15K.7 FC Product Manual
Page 76
...-500µA IOL < 2.4mA IOH < -1.6mA IOH < -500µA IOL < 1.6mA 70 Cheetah 15K.7 FC Product Manual, Rev. If the backpanel does not connect to these lines, the drive has 10K ohm pull up to 7 (1.0625 GHz). See Table 24 on both ports. 1.0625 GHz ...1 1 1 1 1 (pin 18) 0 0 1 1 0 0 1 1 0 (pin 39) 0 1 0 1 0 1 0 1 Definition Reserved for auto negotiation of the drive's input and output signals. Reserved. Reserved for power failure warning. 10.5.12 Device control codes The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at the same rate. Both ports run at power...
...-500µA IOL < 2.4mA IOH < -1.6mA IOH < -500µA IOL < 1.6mA 70 Cheetah 15K.7 FC Product Manual, Rev. If the backpanel does not connect to these lines, the drive has 10K ohm pull up to 7 (1.0625 GHz). See Table 24 on both ports. 1.0625 GHz ...1 1 1 1 1 (pin 18) 0 0 1 1 0 0 1 1 0 (pin 39) 0 1 0 1 0 1 0 1 Definition Reserved for auto negotiation of the drive's input and output signals. Reserved. Reserved for power failure warning. 10.5.12 Device control codes The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at the same rate. Both ports run at power...
Cheetah 15K.7 FC Product Manual
Page 86
...shipping pack kit 8 SMART 7, 15 SMP = 1 in Mode Select command 62 SO 48, 51 spindle brake 6 Stacked connection req. 48, 51 standards 2 Start unit/stop unit command 54 start/stop time 10 support services 73 Supported diagnostics pages...-party Process Logout (TRPLO) 46 tracks per inch 9 Translate page command 54 transmit eye diagram 71 transmitters 65 transporting the drive 19 Trusted Computing Group 4, 5, 35 TTL input characteristics 70 U UI 49, 50 unformatted 7 unique identifier 49, 50 ...command 53 W warranty 19 word sync 14 Write and verify command 54 80 Cheetah 15K.7 FC Product Manual, Rev. B
...shipping pack kit 8 SMART 7, 15 SMP = 1 in Mode Select command 62 SO 48, 51 spindle brake 6 Stacked connection req. 48, 51 standards 2 Start unit/stop unit command 54 start/stop time 10 support services 73 Supported diagnostics pages...-party Process Logout (TRPLO) 46 tracks per inch 9 Translate page command 54 transmit eye diagram 71 transmitters 65 transporting the drive 19 Trusted Computing Group 4, 5, 35 TTL input characteristics 70 U UI 49, 50 unformatted 7 unique identifier 49, 50 ...command 53 W warranty 19 word sync 14 Write and verify command 54 80 Cheetah 15K.7 FC Product Manual, Rev. B
Cheetah 15K.7 SAS Product Manual
Page 15
... to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disk transfer rate*: Minimum Maximum 122 ...drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with verify) Maximum (without verify) ST3600057SS 119 60 ST3450857SS 90 45 ST3300657SS... bytes/sec 4.3 Start/stop time The drive accepts the commands listed in time to 1, the drive waits for a NOTIFY (ENABLE SPINUP) primitive. Cheetah 15K.7 SAS Product Manual, Rev. B...
... to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disk transfer rate*: Minimum Maximum 122 ...drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with verify) Maximum (without verify) ST3600057SS 119 60 ST3450857SS 90 45 ST3300657SS... bytes/sec 4.3 Start/stop time The drive accepts the commands listed in time to 1, the drive waits for a NOTIFY (ENABLE SPINUP) primitive. Cheetah 15K.7 SAS Product Manual, Rev. B...
Cheetah 15K.7 SAS Product Manual
Page 19
5.1.3 Seek errors A seek error is defined as a failure of Cheetah disk drives by ensuring that the drive receives adequate cooling. If the error recovery process fails, a seek positioning error (Error code = 15h or 02h) will provide...(Sense Key = 04h) are not exceeded. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance is required. 5.2.3 Hot plugging the drive When a disk is presented during the hot connect/disconnect operation. AFR and MTBF specifications are based on the following assumptions for Enterprise Storage System environments: • 8,760 power...
5.1.3 Seek errors A seek error is defined as a failure of Cheetah disk drives by ensuring that the drive receives adequate cooling. If the error recovery process fails, a seek positioning error (Error code = 15h or 02h) will provide...(Sense Key = 04h) are not exceeded. 5.2.2 Preventive maintenance No routine scheduled preventive maintenance is required. 5.2.3 Hot plugging the drive When a disk is presented during the hot connect/disconnect operation. AFR and MTBF specifications are based on the following assumptions for Enterprise Storage System environments: • 8,760 power...
Cheetah 15K.7 SAS Product Manual
Page 47
... SAS connector. Power is normally located on the drive. You should be designed by the host system. 9.0 Installation Cheetah 15K.7 disk drive installation is created while providing air flow to the electronics and HDA. Mount the drive to be mounted in a non-backplane host system, connecting the drive using four 6-32 UNC screws. Do not over...
... SAS connector. Power is normally located on the drive. You should be designed by the host system. 9.0 Installation Cheetah 15K.7 disk drive installation is created while providing air flow to the electronics and HDA. Mount the drive to be mounted in a non-backplane host system, connecting the drive using four 6-32 UNC screws. Do not over...
Cheetah 15K.7 SAS Product Manual
Page 48
... out-of-plane distortion (X) is applied to the fourth point. 9.4 Grounding Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be connected to the HDA and PCBA with three of the four mounting points fixed and evaluating the out-of-plane deflection of -plane... are acceptable as long as shown in the host equipment. The allowable mounting surface stiffness is the system designer's and integrator's responsibility. 42 Cheetah 15K.7 SAS Product Manual, Rev. This is 80 lb/in reverse direction (side to back) Note. Air flows in the direction shown or...
... out-of-plane distortion (X) is applied to the fourth point. 9.4 Grounding Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be connected to the HDA and PCBA with three of the four mounting points fixed and evaluating the out-of-plane deflection of -plane... are acceptable as long as shown in the host equipment. The allowable mounting surface stiffness is the system designer's and integrator's responsibility. 42 Cheetah 15K.7 SAS Product Manual, Rev. This is 80 lb/in reverse direction (side to back) Note. Air flows in the direction shown or...