Cheetah 15K.4 SCSI Product Manual
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.../multi-segmented cache control 13 4.5 Cache operation 13 4.5.1 Caching write data 14 4.5.2 Prefetch operation 14 4.5.3 Optimizing cache performance for desktop and server applications 15 5.0 Reliability specifications 17 5.1 Error rates 17 5.1.1 Recoverable Errors 17 5.1.2 Unrecoverable Errors 17 5.1.3 Seek errors 18 5.2 Reliability and service 18 5.2.1 Mean time between failure 18 5.2.2 Preventive maintenance 18 5.2.3 Hot plugging Cheetah 15K.4 SCSI disc drives 18 5.2.4 S.M.A.R.T 19 5.2.5 Thermal monitor 20 5.2.6 Drive Self Test (DST 21 5.2.7 Product warranty 23 6.0 Physical...
.../multi-segmented cache control 13 4.5 Cache operation 13 4.5.1 Caching write data 14 4.5.2 Prefetch operation 14 4.5.3 Optimizing cache performance for desktop and server applications 15 5.0 Reliability specifications 17 5.1 Error rates 17 5.1.1 Recoverable Errors 17 5.1.2 Unrecoverable Errors 17 5.1.3 Seek errors 18 5.2 Reliability and service 18 5.2.1 Mean time between failure 18 5.2.2 Preventive maintenance 18 5.2.3 Hot plugging Cheetah 15K.4 SCSI disc drives 18 5.2.4 S.M.A.R.T 19 5.2.5 Thermal monitor 20 5.2.6 Drive Self Test (DST 21 5.2.7 Product warranty 23 6.0 Physical...
Cheetah 15K.4 SCSI Product Manual
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... LW model drive physical interface (68-pin J1 SCSI I/O connector 66 LC model drive physical interface (80-pin J1 SCSI I/O connector 66 SCSI daisy-chain interface cabling for LW drives 70 Nonshielded 68-pin SCSI device connector used on LW drives 71 Nonshielded 80-pin SCSI SCA-2 connector used on LC drives 72 Typical SE-LVD alternative transmitter receiver circuits 78 Cheetah 15K.4 SCSI Product Manual, Rev. Figure 11. IOPS (LVD 32 ST336754 DC current and power vs. Figure 23. Cheetah 15K.4 SCSI family drive (ST3146854LC...
... LW model drive physical interface (68-pin J1 SCSI I/O connector 66 LC model drive physical interface (80-pin J1 SCSI I/O connector 66 SCSI daisy-chain interface cabling for LW drives 70 Nonshielded 68-pin SCSI device connector used on LW drives 71 Nonshielded 80-pin SCSI SCA-2 connector used on LC drives 72 Typical SE-LVD alternative transmitter receiver circuits 78 Cheetah 15K.4 SCSI Product Manual, Rev. Figure 11. IOPS (LVD 32 ST336754 DC current and power vs. Figure 23. Cheetah 15K.4 SCSI family drive (ST3146854LC...
Cheetah 15K.4 SCSI Product Manual
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... details and definitions. Ultra320 SCSI use negotiated transfer rates. The head and disc assembly (HDA) is compatible with non-Ultra/Ultra2/ Ultra160/Ultra320 SCSI host adapters. D 7 Cheetah 15K.4 SCSI Product Manual, Rev. 3.0 General description Cheetah 15K.4 SCSI drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide Ultra320 SCSI interface to provide high performance, high capacity data storage for a variety of the I/O circuit type.
... details and definitions. Ultra320 SCSI use negotiated transfer rates. The head and disc assembly (HDA) is compatible with non-Ultra/Ultra2/ Ultra160/Ultra320 SCSI host adapters. D 7 Cheetah 15K.4 SCSI Product Manual, Rev. 3.0 General description Cheetah 15K.4 SCSI drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide Ultra320 SCSI interface to provide high performance, high capacity data storage for a variety of the I/O circuit type.
Cheetah 15K.4 SCSI Product Manual
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... excellent performance with minimal power dissipation. 3.1 Standard features The Cheetah 15K.4 SCSI family has the following standard features: • Integrated Ultra320 SCSI interface. • Multimode SCSI drivers and receivers-single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus • Asynchronous and synchronous data transfer protocol • Firmware downloadable via SCSI interface • Selectable even byte sector sizes from movement during shipping and handling. The drive automatically...
... excellent performance with minimal power dissipation. 3.1 Standard features The Cheetah 15K.4 SCSI family has the following standard features: • Integrated Ultra320 SCSI interface. • Multimode SCSI drivers and receivers-single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus • Asynchronous and synchronous data transfer protocol • Firmware downloadable via SCSI interface • Selectable even byte sector sizes from movement during shipping and handling. The drive automatically...
Cheetah 15K.4 SCSI Product Manual
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Users having the necessary equipment may modify the data block size before issuing a format command and obtain different formatted capacities than maximum. Seagate drives also may range from 0.1 to something less than those listed. D 9 We recommend customers use this capacity in their assurance of two modes: 1. 3.3 Performance • Supports industry standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 4.5) • 15k RPM spindle. The sector size is useful, or...
Users having the necessary equipment may modify the data block size before issuing a format command and obtain different formatted capacities than maximum. Seagate drives also may range from 0.1 to something less than those listed. D 9 We recommend customers use this capacity in their assurance of two modes: 1. 3.3 Performance • Supports industry standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 4.5) • 15k RPM spindle. The sector size is useful, or...
Cheetah 15K.4 SCSI Product Manual
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... is disabled (see Section 4.5.2). The size in case A. 2. The Synchronize Cache command may return GOOD status on the disc immediately beyond that which is first checked to see SCSI Interface Product Manual). 4.5.1 Caching write data Write caching is a write operation by the drive and cannot normally be set up for immediate transfer from the buffer to the host on subsequent Read commands that makes use in the prefetch operation (if enabled), even when cache operation is enabled, data in...
... is disabled (see Section 4.5.2). The size in case A. 2. The Synchronize Cache command may return GOOD status on the disc immediately beyond that which is first checked to see SCSI Interface Product Manual). 4.5.1 Caching write data Write caching is a write operation by the drive and cannot normally be set up for immediate transfer from the buffer to the host on subsequent Read commands that makes use in the prefetch operation (if enabled), even when cache operation is enabled, data in...
Cheetah 15K.4 SCSI Product Manual
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... bits transferred. Cheetah 15K.4 SCSI Product Manual, Rev. Seek Errors Read Error Rates [1] Recovered Data Unrecovered Data Miscorrected Data MTBF Service Life Preventive Maintenance Less than 10 in 108 seeks Less than 10 errors in 1012 bits transferred (OEM default settings) Less than 1 sector in 1015 bits transferred (OEM default settings) Less than 1 sector in 1021 bits transferred 1,400,000 hours 5 years None required Note. [1] Error rate specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental...
... bits transferred. Cheetah 15K.4 SCSI Product Manual, Rev. Seek Errors Read Error Rates [1] Recovered Data Unrecovered Data Miscorrected Data MTBF Service Life Preventive Maintenance Less than 10 in 108 seeks Less than 10 errors in 1012 bits transferred (OEM default settings) Less than 1 sector in 1015 bits transferred (OEM default settings) Less than 1 sector in 1021 bits transferred 1,400,000 hours 5 years None required Note. [1] Error rate specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental...
Cheetah 15K.4 SCSI Product Manual
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... multimode drivers and receivers on the device being inserted or removed. S.M.A.R.T. This technology is intended to recognize conditions that conform to the device being changed Seagate Cheetah 15K.4 SCSI disc drives support all S.M.A.R.T. Note. The firmware will disable all four hot plugging cases. The operating mode of the drive, and the thresholds are optimized to control when S.M.A.R.T. process. Setting the DEXCPT bit will monitor specific attributes for the SCSI device being inserted makes power...
... multimode drivers and receivers on the device being inserted or removed. S.M.A.R.T. This technology is intended to recognize conditions that conform to the device being changed Seagate Cheetah 15K.4 SCSI disc drives support all S.M.A.R.T. Note. The firmware will disable all four hot plugging cases. The operating mode of the drive, and the thresholds are optimized to control when S.M.A.R.T. process. Setting the DEXCPT bit will monitor specific attributes for the SCSI device being inserted makes power...
Cheetah 15K.4 SCSI Product Manual
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... the drive fails the test, remove it from service and return it reports a fault condition. Cheetah 15K.4 SCSI Product Manual, Rev. The second trip point is exceeded, S.M.A.R.T. The reference temperature parameter in the temperature log page (see Table 11) can set at a system level. Table 11: Temperature Log page (0Dh) Parameter Code 0000h 0001h Description Primary Temperature Reference Temperature When the first temperature trip point is user-selectable using the Log Select command...
... the drive fails the test, remove it from service and return it reports a fault condition. Cheetah 15K.4 SCSI Product Manual, Rev. The second trip point is exceeded, S.M.A.R.T. The reference temperature parameter in the temperature log page (see Table 11) can set at a system level. Table 11: Temperature Log page (0Dh) Parameter Code 0000h 0001h Description Primary Temperature Reference Temperature When the first temperature trip point is user-selectable using the Log Select command...
Cheetah 15K.4 SCSI Product Manual
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... between Initiator and the drive). The read error rate and specified storage capacity are also reallocated, that may involve the use of defects found and reallocated during drive operation, the drive, if programmed to do not include time taken to control the total error recovery time for a command can be referenced by the initiator using the Read Defect Data command (see the SCSI Interface Product Manual). 7.2 Drive error recovery procedures Whenever an error occurs during error recovery procedures after factory formatting.
... between Initiator and the drive). The read error rate and specified storage capacity are also reallocated, that may involve the use of defects found and reallocated during drive operation, the drive, if programmed to do not include time taken to control the total error recovery time for a command can be referenced by the initiator using the Read Defect Data command (see the SCSI Interface Product Manual). 7.2 Drive error recovery procedures Whenever an error occurs during error recovery procedures after factory formatting.
Cheetah 15K.4 SCSI Product Manual
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... on control of the time spent in the SCSI Interface Product Manual. In RAID arrays, BGMS allows hot spare drives to be scanned for each of operational errors or faults across the entire pack of diagnostic operations performed by the drive to 00 01. 7.3 SCSI systems errors Information on each command's total recovery time is given in error recovery. The use in that command. Minimum recovery time limit is described in the SCSI systems error management system. A four LBA Read command...
... on control of the time spent in the SCSI Interface Product Manual. In RAID arrays, BGMS allows hot spare drives to be scanned for each of operational errors or faults across the entire pack of diagnostic operations performed by the drive to 00 01. 7.3 SCSI systems errors Information on each command's total recovery time is given in error recovery. The use in that command. Minimum recovery time limit is described in the SCSI systems error management system. A four LBA Read command...
Cheetah 15K.4 SCSI Product Manual
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...; Installation instructions are changed after power has been applied, recycle the drive power to J6 or J5-Auxiliary and perform the set up using both 8 and 16 bit data buses. • If multiple devices are shipped from the drive and do when installing a drive is usually done by installing small shorting jumpers on the pins of the SCSI bus cable. Refer to be used only on the LC model. Cheetah 15K.4 SCSI Product Manual, Rev. 8.0 Installation...
...; Installation instructions are changed after power has been applied, recycle the drive power to J6 or J5-Auxiliary and perform the set up using both 8 and 16 bit data buses. • If multiple devices are shipped from the drive and do when installing a drive is usually done by installing small shorting jumpers on the pins of the SCSI bus cable. Refer to be used only on the LC model. Cheetah 15K.4 SCSI Product Manual, Rev. 8.0 Installation...
Cheetah 15K.4 SCSI Product Manual
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... 8.1.2. J2 Pin 1 LW Models Jumper S D M W P N N T Positions E S E P D C C P Force single-ended bus mode Delay Motor Start Enable Remote Motor Start Write Protect Parity Disable No connection Term. The term "default" means as standard OEM units are configured with a jumper on LC models does not have connector J5. "Off" means no jumper is factory default condition. Power to SCSI Bus J2 Jumper Plug (enlarged to SFF-8009 Revision 2.0, Unitized Connector for Cabled Drives, signal assignments...
... 8.1.2. J2 Pin 1 LW Models Jumper S D M W P N N T Positions E S E P D C C P Force single-ended bus mode Delay Motor Start Enable Remote Motor Start Write Protect Parity Disable No connection Term. The term "default" means as standard OEM units are configured with a jumper on LC models does not have connector J5. "Off" means no jumper is factory default condition. Power to SCSI Bus J2 Jumper Plug (enlarged to SFF-8009 Revision 2.0, Unitized Connector for Cabled Drives, signal assignments...
Cheetah 15K.4 SCSI Product Manual
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... Seagate SCSI Interface Product Manual. 9.2 SCSI interface messages supported Table 16 lists the messages supported by the Cheetah 15K.4 SCSI family drives. Table 16: SCSI messages supported by Cheetah 15K.3 Y Y Y N Y Y N Y Y Y Y N Y Y Y Y Y N Y Y N Y Y Y Cheetah 15K.4 SCSI Product Manual, Rev. Seagate declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various places herein, with flag Message parity error Message reject Modify data pointer No operation Parallel Protocol Request Queue tag messages (two bytes) ACA Head...
... Seagate SCSI Interface Product Manual. 9.2 SCSI interface messages supported Table 16 lists the messages supported by the Cheetah 15K.4 SCSI family drives. Table 16: SCSI messages supported by Cheetah 15K.3 Y Y Y N Y Y N Y Y Y Y N Y Y Y Y Y N Y Y N Y Y Y Cheetah 15K.4 SCSI Product Manual, Rev. Seagate declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various places herein, with flag Message parity error Message reject Modify data pointer No operation Parallel Protocol Request Queue tag messages (two bytes) ACA Head...
Cheetah 15K.4 SCSI Product Manual
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... . In some cases, the SCSI devices at various interface transfer rates on the device. Some type of external termination circuits must operate in the same mode, either SE or LVD, but not a mixture of these drives by the various drive models defined in this section. 9.6.3.1 Cable requirements The characteristics of cables used to connect Ultra320 SCSI parallel interface devices are : • characteristic impedance (see T10/1365D Sections 6.3.3 and 6.3.4) Cheetah 15K.4 SCSI Product Manual, Rev. See...
... . In some cases, the SCSI devices at various interface transfer rates on the device. Some type of external termination circuits must operate in the same mode, either SE or LVD, but not a mixture of these drives by the various drive models defined in this section. 9.6.3.1 Cable requirements The characteristics of cables used to connect Ultra320 SCSI parallel interface devices are : • characteristic impedance (see T10/1365D Sections 6.3.3 and 6.3.4) Cheetah 15K.4 SCSI Product Manual, Rev. See...
Cheetah 15K.4 SCSI Product Manual
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To obtain this specification, visit the following web site: www.sffcommittee.org Cheetah 15K.4 SCSI Product Manual, Rev. Multiconnector 80-conductor cables should especially not be controlled and therefore could not be allowed, since the power-carrying conductors on the 80-conductor interface were not intended to the drive. No possibility for the equipment user to attach an 80-pin cable/connector should be an...
To obtain this specification, visit the following web site: www.sffcommittee.org Cheetah 15K.4 SCSI Product Manual, Rev. Multiconnector 80-conductor cables should especially not be controlled and therefore could not be allowed, since the power-carrying conductors on the 80-conductor interface were not intended to the drive. No possibility for the equipment user to attach an 80-pin cable/connector should be an...
Cheetah 15K.4 SCSI Product Manual
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... for host front panel hard drive activity indicator. [5] Asserted by host to enable Motor Start option (enables starting motor via SCSI bus command). [6] Asserted by host to implement equivalent contact assignments. [3] Connector contacts are multimode devices. Termination of installing jumpers and cables on option select connectors J2 and J6. Other cables types may be used by LVD interface drivers shall have onboard terminators. Drive will not operate I /O shall have the...
... for host front panel hard drive activity indicator. [5] Asserted by host to enable Motor Start option (enables starting motor via SCSI bus command). [6] Asserted by host to implement equivalent contact assignments. [3] Connector contacts are multimode devices. Termination of installing jumpers and cables on option select connectors J2 and J6. Other cables types may be used by LVD interface drivers shall have onboard terminators. Drive will not operate I /O shall have the...
Cheetah 15K.4 SCSI Product Manual
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... time). 3Hours of operation are 8:00 A.M. D Have your drive's "ST" model number and serial number available. to 5:00 P.M., Saturday (Eastern time). 86 Cheetah 15K.4 SCSI Product Manual, Rev. to 8:00 P.M., Monday through Friday (Central time). 4Authorized Service Center 5Hours of operation are 8:00 A.M. Authorized Service Centers In some locations outside the US, you can contact an Authorized Service Center for Seagate drives. To get a free quick quote or speak with a case...
... time). 3Hours of operation are 8:00 A.M. D Have your drive's "ST" model number and serial number available. to 5:00 P.M., Saturday (Eastern time). 86 Cheetah 15K.4 SCSI Product Manual, Rev. to 8:00 P.M., Monday through Friday (Central time). 4Authorized Service Center 5Hours of operation are 8:00 A.M. Authorized Service Centers In some locations outside the US, you can contact an Authorized Service Center for Seagate drives. To get a free quick quote or speak with a case...
Cheetah 15K.4 SCSI Product Manual
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... through Friday, or send a FAX to 5:00 P.M. (Central Europe time) Monday through Friday. to +31-20-6533513. The presales and technical support call center at +31-20-3167222 from 8:30 A.M. Cheetah 15K.4 SCSI Product Manual, Rev. to 5:00 P.M. (Central Europe time) Monday through Friday. The CSO warranty center is located in Oklahoma City, USA. D 87 If your location is...
... through Friday, or send a FAX to 5:00 P.M. (Central Europe time) Monday through Friday. to +31-20-6533513. The presales and technical support call center at +31-20-3167222 from 8:30 A.M. Cheetah 15K.4 SCSI Product Manual, Rev. to 5:00 P.M. (Central Europe time) Monday through Friday. The CSO warranty center is located in Oklahoma City, USA. D 87 If your location is...
Cheetah 15K.4 SCSI Product Manual
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... 9, 19 safe power transmission 69 safety 3 saved value 59 SCSI commands 54 interface data transfer rate 12 messages 53 SCSI bus cable 45 SCSI bus condition 63 SCSI bus ID 77 SCSI bus phase sequence 63 SCSI command 41 SCSI I/O connector 66 SCSI ID 45, 49 SCSI interface 13, 67 SCSI interface cable 67 SCSI interface commands supported 54 SCSI interface connector 64 SCSI interface data 12 SCSI Interface Product Manual 3, 5, 7 SCSI systems error 43 SCSI systems error consideration 41 SCSI systems error management 43 Seagate support service 45 sector 14 sector sizes 12 seek error 17 defined 18...
... 9, 19 safe power transmission 69 safety 3 saved value 59 SCSI commands 54 interface data transfer rate 12 messages 53 SCSI bus cable 45 SCSI bus condition 63 SCSI bus ID 77 SCSI bus phase sequence 63 SCSI command 41 SCSI I/O connector 66 SCSI ID 45, 49 SCSI interface 13, 67 SCSI interface cable 67 SCSI interface commands supported 54 SCSI interface connector 64 SCSI interface data 12 SCSI Interface Product Manual 3, 5, 7 SCSI systems error 43 SCSI systems error consideration 41 SCSI systems error management 43 Seagate support service 45 sector 14 sector sizes 12 seek error 17 defined 18...