Product Manual
Page 4
... the right to change, without written permission of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of Seagate Technology LLC. No part of this publication may be reproduced in any form without notice, product offerings or specifications. © 2001 Seagate Technology LLC All rights reserved Publication number: 75789506, Rev...
... the right to change, without written permission of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of Seagate Technology LLC. No part of this publication may be reproduced in any form without notice, product offerings or specifications. © 2001 Seagate Technology LLC All rights reserved Publication number: 75789506, Rev...
Product Manual
Page 7
... rate vs time 14 5.2.3 Preventive maintenance 15 5.2.4 Service life 15 5.2.5 Service philosophy 15 5.2.6 Service tools 15 5.2.7 Hot plugging Cheetah 18XL disc drives 15 5.2.8 S.M.A.R.T 16 5.2.9 Drive Self Test (DST 17 5.2.10 Product warranty 19 6.0 Physical/electrical specifications 21 6.1 AC power requirements 21 6.2 DC power requirements 21 6.2.1 Conducted noise immunity 22 6.2.2 Power sequencing 22 6.2.3 12 V - Current...
... rate vs time 14 5.2.3 Preventive maintenance 15 5.2.4 Service life 15 5.2.5 Service philosophy 15 5.2.6 Service tools 15 5.2.7 Hot plugging Cheetah 18XL disc drives 15 5.2.8 S.M.A.R.T 16 5.2.9 Drive Self Test (DST 17 5.2.10 Product warranty 19 6.0 Physical/electrical specifications 21 6.1 AC power requirements 21 6.2 DC power requirements 21 6.2.1 Conducted noise immunity 22 6.2.2 Power sequencing 22 6.2.3 12 V - Current...
Product Manual
Page 8
...Cheetah 18XL Product Manual, Rev. G 6.4.2 Relative humidity 28 6.4.3 Effective altitude (sea level 28 6.4.4 Shock and vibration 29 6.4.5 Air cleanliness 31 6.4.6 Acoustics 31 6.4.7 Electromagnetic susceptibility 31 6.5 Mechanical specifications 32 7.0 Defect and error management 35 7.1 Drive internal defects 35 7.2 Drive error recovery procedures 35 7.3 SCSI systems errors 36 8.0 Installation 37 8.1 Drive... 67 9.8 Terminator requirements 69 9.9 Terminator power 69 9.10 Disc drive SCSI timing 70 9.11 Drive activity LED 71 10.0 Seagate Technology support services 73
...Cheetah 18XL Product Manual, Rev. G 6.4.2 Relative humidity 28 6.4.3 Effective altitude (sea level 28 6.4.4 Shock and vibration 29 6.4.5 Air cleanliness 31 6.4.6 Acoustics 31 6.4.7 Electromagnetic susceptibility 31 6.5 Mechanical specifications 32 7.0 Defect and error management 35 7.1 Drive internal defects 35 7.2 Drive error recovery procedures 35 7.3 SCSI systems errors 36 8.0 Installation 37 8.1 Drive... 67 9.8 Terminator requirements 69 9.9 Terminator power 69 9.10 Disc drive SCSI timing 70 9.11 Drive activity LED 71 10.0 Seagate Technology support services 73
Product Manual
Page 11
... Seagate drives. Cheetah 18XL drives support the Small Computer System Interface (SCSI) as "the drive" unless references to the extent described in Section 2.3. Cheetah 18XL family drive (ST318404LC shown) From this point on in this and other families of this product manual the reference to Cheetah 18XL models is referred to as described in the ANSI SCSI interface specifications...
... Seagate drives. Cheetah 18XL drives support the Small Computer System Interface (SCSI) as "the drive" unless references to the extent described in Section 2.3. Cheetah 18XL family drive (ST318404LC shown) From this point on in this and other families of this product manual the reference to Cheetah 18XL models is referred to as described in the ANSI SCSI interface specifications...
Product Manual
Page 14
...of Standards, Metrology, and Inspection (BSMI). 2.3 Reference documents Cheetah 18XL Installation Guide Seagate P/N 75789507 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Interface Product Manual Seagate P/N 75789509 Applicable ANSI Small Computer System Interface (SCSI) document ... Spectrum Management Agency (SMA). This drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for Class B products. • EUT name (model numbers): ST318404LC, ST318404LW, ST39204LC, ST39204LW • Certificate number: ...
...of Standards, Metrology, and Inspection (BSMI). 2.3 Reference documents Cheetah 18XL Installation Guide Seagate P/N 75789507 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Interface Product Manual Seagate P/N 75789509 Applicable ANSI Small Computer System Interface (SCSI) document ... Spectrum Management Agency (SMA). This drive has been tested and complies with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for Class B products. • EUT name (model numbers): ST318404LC, ST318404LW, ST39204LC, ST39204LW • Certificate number: ...
Product Manual
Page 15
...Table 1: Drive model number vs. The drive supports the Small Computer System Interface (SCSI) as described in the ANSI SCSI interface specifications to Figure 2 for an exploded view of Seagate SCSI drives. Refer ...Cheetah 18XL drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide Ultra160 SCSI interface to provide high performance, high capacity data storage for a variety of the I /O Data buffer connector pins data bus bits size (MB) ST318404LW 6 ST318404LC 6 ST39204LW 3 ST39204LC...
...Table 1: Drive model number vs. The drive supports the Small Computer System Interface (SCSI) as described in the ANSI SCSI interface specifications to Figure 2 for an exploded view of Seagate SCSI drives. Refer ...Cheetah 18XL drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide Ultra160 SCSI interface to provide high performance, high capacity data storage for a variety of the I /O Data buffer connector pins data bus bits size (MB) ST318404LW 6 ST318404LC 6 ST39204LW 3 ST39204LC...
Product Manual
Page 18
... capacity. 3.7 Factory installed accessories OEM Standard drives are (not an exhaustive list of LBAs is usually included with the Cheetah 18XL Installation Guide, part number 75789507, and the Safety and Regulatory Agency Specifications, part number 75789512, unless otherwise specified. ...Specifications, part number 75789512, is rounded down to the Parameter list block descriptor number of bytes per sector. The following table shows the standard OEM model capacities: ST318404 ST39204 Formatted data block size 512 bytes/sector [1] 222EE55h (18.352 GB) [2] 111772Ah (9.176 GB...
... capacity. 3.7 Factory installed accessories OEM Standard drives are (not an exhaustive list of LBAs is usually included with the Cheetah 18XL Installation Guide, part number 75789507, and the Safety and Regulatory Agency Specifications, part number 75789512, unless otherwise specified. ...Specifications, part number 75789512, is rounded down to the Parameter list block descriptor number of bytes per sector. The following table shows the standard OEM model capacities: ST318404 ST39204 Formatted data block size 512 bytes/sector [1] 222EE55h (18.352 GB) [2] 111772Ah (9.176 GB...
Product Manual
Page 21
... is set to retrieve it does for future read functions. The buffer segmentation scheme is set up by the drive, and if the STRICT bit in the cache. Cheetah 18XL Product Manual, Rev. A Read command is received and the first logical block (LB) is an integer...first checked to be selected using the Mode Select command, but only as it . See explanations associated with the disconnect/reconnect specification mentioned above. 3. Drive transfers to the initiator the first LB requested plus all data transfers to the host in the buffer segments for operation from...
... is set to retrieve it does for future read functions. The buffer segmentation scheme is set up by the drive, and if the STRICT bit in the cache. Cheetah 18XL Product Manual, Rev. A Read command is received and the first logical block (LB) is an integer...first checked to be selected using the Mode Select command, but only as it . See explanations associated with the disconnect/reconnect specification mentioned above. 3. Drive transfers to the initiator the first LB requested plus all data transfers to the host in the buffer segments for operation from...
Product Manual
Page 23
... sector in 1015 bits transferred (OEM default settings) Less than ten recoverable seek errors in this specification using DC power as a failure of the drive to position the heads to be excluded from error rate calculations. 5.1.3 Write errors Write errors can ... drive mounting constraints (see Section 6.2). • The drive has been formatted with ECC enabled and all flaws reallocated. 5.1 Error rates The error rates stated in 108 physical seek operations. G 13 5.0 Reliability specifications The following : • The drive is to the addressed track. Cheetah 18XL...
... sector in 1015 bits transferred (OEM default settings) Less than ten recoverable seek errors in this specification using DC power as a failure of the drive to position the heads to be excluded from error rate calculations. 5.1.3 Write errors Write errors can ... drive mounting constraints (see Section 6.2). • The drive has been formatted with ECC enabled and all flaws reallocated. 5.1 Error rates The error rates stated in 108 physical seek operations. G 13 5.0 Reliability specifications The following : • The drive is to the addressed track. Cheetah 18XL...
Product Manual
Page 24
...PPM 890 PPM 840 PPM 805 PPM Failure rate is specified as failures for all drives in service per year. • Read/seek/write operation 20% of Cheetah 18XL disc drives by drive malfunction. Unrecoverable seek errors are not exceeded. Estimated power-on /off cycles per disc... recommended air-flow information. 5.2.1 Mean time between failure The production disc drive shall achieve an MTBF of 1,200,000 hours when operated in an environment that the drive is deteriorating to the specification limits of utilization is listed below. This is reported with a Medium error...
...PPM 890 PPM 840 PPM 805 PPM Failure rate is specified as failures for all drives in service per year. • Read/seek/write operation 20% of Cheetah 18XL disc drives by drive malfunction. Unrecoverable seek errors are not exceeded. Estimated power-on /off cycles per disc... recommended air-flow information. 5.2.1 Mean time between failure The production disc drive shall achieve an MTBF of 1,200,000 hours when operated in an environment that the drive is deteriorating to the specification limits of utilization is listed below. This is reported with a Medium error...
Product Manual
Page 26
...Cheetah 18XL Product Manual, Rev. G 5.2.8 S.M.A.R.T. Note. The operating mode of recreating the events that caused a predictive failure. will disable all S.M.A.R.T. attribute data will be unacceptable. The error code is designed to as the Failure Counter. A counter keeps track of the number of the drive..., S.M.A.R.T. This is referred to an unacceptable level. Performance impact S.M.A.R.T. monitors the rate at which to monitor a specific set of failure conditions in the operating performance of errors for a given attribute. To determine rate, error events ...
...Cheetah 18XL Product Manual, Rev. G 5.2.8 S.M.A.R.T. Note. The operating mode of recreating the events that caused a predictive failure. will disable all S.M.A.R.T. attribute data will be unacceptable. The error code is designed to as the Failure Counter. A counter keeps track of the number of the drive..., S.M.A.R.T. This is referred to an unacceptable level. Performance impact S.M.A.R.T. monitors the rate at which to monitor a specific set of failure conditions in the operating performance of errors for a given attribute. To determine rate, error events ...
Product Manual
Page 29
... code to abort a diagnostic. Seagate will be used. Cheetah 18XL Product Manual, Rev. G 19 5.2.9.2.5 Abort There are the only facilities authorized to customer. Shipping When transporting or shipping a drive, a Seagate approved container must be repaired or replaced, at Seagate's option and at no charge to... the repair or replacement item to service Seagate drives. They are easily identified by using the abort code in the self-test results values log. You can use due to the applicable specifications will pay for Seagate products. You can abort a DST executing...
... code to abort a diagnostic. Seagate will be used. Cheetah 18XL Product Manual, Rev. G 19 5.2.9.2.5 Abort There are the only facilities authorized to customer. Shipping When transporting or shipping a drive, a Seagate approved container must be repaired or replaced, at Seagate's option and at no charge to... the repair or replacement item to service Seagate drives. They are easily identified by using the abort code in the self-test results values log. You can use due to the applicable specifications will pay for Seagate products. You can abort a DST executing...
Product Manual
Page 31
... the physical and electrical characteristics of maximum track. The ±5% must be noted. Minimum current loading for each device. 4. Cheetah 18XL Product Manual, Rev. The +5 and +12 volt supplies shall employ separate ground returns. 3. Parameters, other than 1.2%...[1] Measured with average reading DC ammeter or equivalent sampling scope. G 21 6.0 Physical/electrical specifications This section provides information relating to ±5% before 10,017 rpm is enabled and the drive has not yet received a Start Motor command. [5] See Section 6.2.1 "Conducted Noise Immunity."...
... the physical and electrical characteristics of maximum track. The ±5% must be noted. Minimum current loading for each device. 4. Cheetah 18XL Product Manual, Rev. The +5 and +12 volt supplies shall employ separate ground returns. 3. Parameters, other than 1.2%...[1] Measured with average reading DC ammeter or equivalent sampling scope. G 21 6.0 Physical/electrical specifications This section provides information relating to ±5% before 10,017 rpm is enabled and the drive has not yet received a Start Motor command. [5] See Section 6.2.1 "Conducted Noise Immunity."...
Product Manual
Page 37
...only. Operating With cooling designed to maintain the case temperatures of Table 3, Column 2, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 131°F (55°C) or 41...176;F (5°C) may not reflect actual operating values. Operation at the elevated temperatures will reduce product reliability. Cheetah...
...only. Operating With cooling designed to maintain the case temperatures of Table 3, Column 2, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 131°F (55°C) or 41...176;F (5°C) may not reflect actual operating values. Operation at the elevated temperatures will reduce product reliability. Cheetah...
Product Manual
Page 38
...-operating -40° to 158°F (-40° to 70°C) package ambient with drive. This specification assumes that the drive is packaged in Table 3 6.4.2 Relative humidity The values below assume that no condensation on the drive occurs. Operating 5% to +3,048 meters) b. Non-operating -1,000 to +40,000 feet (-305... feet (-305 to 95% non-condensing relative humidity with a maximum gradient of PCBA components listed in the shipping container designed by Seagate for use with a maximum gradient of 36°F (20°C) per hour. a. G b. Locations of 10% per hour. 28...
...-operating -40° to 158°F (-40° to 70°C) package ambient with drive. This specification assumes that the drive is packaged in Table 3 6.4.2 Relative humidity The values below assume that no condensation on the drive occurs. Operating 5% to +3,048 meters) b. Non-operating -1,000 to +40,000 feet (-305... feet (-305 to 95% non-condensing relative humidity with a maximum gradient of PCBA components listed in the shipping container designed by Seagate for use with a maximum gradient of 36°F (20°C) per hour. a. G b. Locations of 10% per hour. 28...
Product Manual
Page 39
... to nonrepetitive shock not exceeding 150 Gs at a maximum duration of 11 msec (half sinewave). Cheetah 18XL Product Manual, Rev. For additional details refer to the enclosure resulting in drive movement in the X, Y, or Z axis. Shock may be repeated more than two times per...sinewave) does not exhibit device damage or performance degradation. Operating-normal The drive, as loose load (not palletized) general freight will continue when normal operating shock levels resume. Shock may occur internally to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100...
... to nonrepetitive shock not exceeding 150 Gs at a maximum duration of 11 msec (half sinewave). Cheetah 18XL Product Manual, Rev. For additional details refer to the enclosure resulting in drive movement in the X, Y, or Z axis. Shock may be repeated more than two times per...sinewave) does not exhibit device damage or performance degradation. Operating-normal The drive, as loose load (not palletized) general freight will continue when normal operating shock levels resume. Shock may occur internally to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100...
Product Manual
Page 41
... (peak to peak) 22-300 Hz @ 1.1 G (zero to peak) 300-350 Hz @ 0.83 G (zero to Seagate specification 30553-001. The drive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5-22 Hz @ 0.10 inches (2.54... 7779 specification. Operating - Normal The drive as installed for normal operation, shall comply with minimal environmental control. 6.4.6 Acoustics Sound power during the abnormal vibration period. This includes both isolated drives and integrated drives. b. This assumes system recovery routines are resumed. Cheetah 18XL ...
... (peak to peak) 22-300 Hz @ 1.1 G (zero to peak) 300-350 Hz @ 0.83 G (zero to Seagate specification 30553-001. The drive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5-22 Hz @ 0.10 inches (2.54... 7779 specification. Operating - Normal The drive as installed for normal operation, shall comply with minimal environmental control. 6.4.6 Acoustics Sound power during the abnormal vibration period. This includes both isolated drives and integrated drives. b. This assumes system recovery routines are resumed. Cheetah 18XL ...
Product Manual
Page 42
... the front panel are exclusive of the decorative front panel accessory. ST318404LW mounting configuration dimensions G 6.5 Mechanical specifications The following nominal dimensions are shown in . (3.05 mm). Figure 13. 32 Cheetah 18XL Product Manual, Rev. See Section 8.4, "Drive mounting." M [1] Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom...
... the front panel are exclusive of the decorative front panel accessory. ST318404LW mounting configuration dimensions G 6.5 Mechanical specifications The following nominal dimensions are shown in . (3.05 mm). Figure 13. 32 Cheetah 18XL Product Manual, Rev. See Section 8.4, "Drive mounting." M [1] Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom...
Product Manual
Page 45
... Time Limit bytes in error recovery for a single LBA. The drive implements selectable error recovery time limits such as being unusable, and their locations recorded on this specification. For additional information on the drive primary defects list (referred to execute the remaining command. The total... are not dependent upon use of which describes the Mode Select/Mode Sense Error Recovery parameters. Cheetah 18XL Product Manual, Rev. G 35 7.0 Defect and error management The drive, as delivered, complies with references to maintain the continuous flow of the RC bit is not...
... Time Limit bytes in error recovery for a single LBA. The drive implements selectable error recovery time limits such as being unusable, and their locations recorded on this specification. For additional information on the drive primary defects list (referred to execute the remaining command. The total... are not dependent upon use of which describes the Mode Select/Mode Sense Error Recovery parameters. Cheetah 18XL Product Manual, Rev. G 35 7.0 Defect and error management The drive, as delivered, complies with references to maintain the continuous flow of the RC bit is not...
Product Manual
Page 52
... be necessary, possible air-flow patterns are acceptable as long as shown in Section 6.4.1. Specific consideration should be mounted in Figure 18. Above unit Under unit Note. G 8.2 Drive orientation The balanced rotary arm actuator design of the drive allows it to be chosen to front) Note. Conduction, convection, or other heat sources within... guidelines of air flow resistance is determined to make sure adequate air circulation is provided using the temperature measurement guidelines described in the illustrations. 42 Cheetah 18XL Product Manual, Rev.
... be necessary, possible air-flow patterns are acceptable as long as shown in Section 6.4.1. Specific consideration should be mounted in Figure 18. Above unit Under unit Note. G 8.2 Drive orientation The balanced rotary arm actuator design of the drive allows it to be chosen to front) Note. Conduction, convection, or other heat sources within... guidelines of air flow resistance is determined to make sure adequate air circulation is provided using the temperature measurement guidelines described in the illustrations. 42 Cheetah 18XL Product Manual, Rev.