Home » Seagate Manuals » Hard Drives » Seagate ST3300457FC » Manual Viewer

Seagate ST3300457FC Cheetah 15K.5 FC Product Manual - Page 23

Reliability specifications

View all Seagate ST3300457FC manuals

Add to My Manuals
Save this manual to your list of manuals

Page 23 highlights

5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Seek error rate: Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data Interface error rate: Annualized Failure Rate (AFR): Preventive maintenance: Less than 10 errors in 108 seeks Less than 10 errors in 1012 bits transferred (OEM default settings) Less than 1 sector in 1016 bits transferred Less than 1 sector in 1021 bits transferred Less than 1 error in 1012 bits transferred with minimum receive eye. Less than 1 error in 1014 bits transferred with typical receive eye. See Section 9.6.4, "FC Differential input." on page 72 0.62% None required 1. Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated. 5.1 Error rates The error rates stated in this manual assume the following: • The drive is operated in accordance with this manual using DC power as defined in paragraph 6.2, "DC power requirements." • Errors caused by host system failures are excluded from error rate computations. • Assume random data. • Default OEM error recovery settings are applied. This includes AWRE, ARRE, full read retries, full write retries and full retry time. 5.1.1 Recoverable Errors Recovereable errors are those detected and corrected by the drive, and do not require user intervention. Recoverable Data errors will use correction, although ECC on-the-fly is not considered for purposes of recovered error specifications. Recovered Data error rate is determined using read bits transferred for recoverable errors occurring during a read, and using write bits transferred for recoverable errors occurring during a write. 5.1.2 Unrecoverable Errors Unrecoverable Data Errors (Sense Key = 03h) are specified at less than 1 sector in error per 1016 bits transferred. Unrecoverable Data Errors resulting from the same cause are treated as 1 error for that block. Cheetah 15K.5 FC Product Manual, Rev. F 15

Section	Page
1.0 Scope	9
2.0 Applicable standards and reference documentation	11
2.1 Standards	11
2.1.1 Electromagnetic compatibility	11
2.1.1.1 Electromagnetic susceptibility	11
2.1.2 Electromagnetic compliance	12
2.2 European Union Restriction of Hazardous Substances (RoHS)	12
2.3 Reference documents	13
3.0 General description	15
3.1 Standard features	16
3.2 Media description	16
3.3 Performance	17
3.4 Reliability	17
3.5 Formatted capacities	17
3.5.1 Programmable drive capacity	17
3.6 Factory-installed accessories	18
3.7 Factory-installed options	18
3.8 User-installed accessories	18
4.0 Performance characteristics	19
4.1 Internal drive characteristics	19
4.2 Seek performance characteristics	19
4.2.1 Access time	19
4.2.2 Format command execution time (minutes)	20
4.2.3 General performance characteristics	20
4.3 Start/stop time	20
4.4 Prefetch/multi-segmented cache control	20
4.5 Cache operation	21
4.5.1 Caching write data	21
4.5.2 Prefetch operation	22
5.0 Reliability specifications	23
5.1 Error rates	23
5.1.1 Recoverable Errors	23
5.1.2 Unrecoverable Errors	23
5.1.3 Seek errors	24
5.1.4 Interface errors	24
5.2 Reliability and service	24
5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)	24
5.2.2 Preventive maintenance	24
5.2.3 Hot plugging the drive	24
5.2.4 S.M.A.R.T.	25
5.2.5 Thermal monitor	26
5.2.6 Drive Self Test (DST)	27
5.2.6.1 DST failure definition	27
5.2.6.2 Implementation	27
5.2.6.2.1 State of the drive prior to testing	27
5.2.6.2.2 Invoking DST	28
5.2.6.2.3 Short and extended tests	28
5.2.6.2.4 Log page entries	28
5.2.6.2.5 Abort	29
5.2.7 Product warranty	29
6.0 Physical/electrical specifications	31
6.1 AC power requirements	31
6.2 DC power requirements	31
6.2.1 Conducted noise immunity	33
6.2.2 Power sequencing	33
6.2.3 Current profiles	33
6.3 Power dissipation	37
6.4 Environmental limits	39
6.4.1 Temperature	39
6.4.2 Relative humidity	40
6.4.3 Effective altitude (sea level)	40
6.4.4 Shock and vibration	40
6.4.4.1 Shock	40
6.4.4.2 Vibration	43
6.4.5 Acoustics	43
6.4.6 Air cleanliness	43
6.4.7 Corrosive environment	43
6.4.8 RoHS compliance statement	44
6.4.9 Electromagnetic susceptibility	44
6.5 Mechanical specifications	45
7.0 Defect and error management	47
7.1 Drive internal defects/errors	47
7.2 Drive error recovery procedures	47
7.3 FC-AL system errors	49
7.4 Background Media Scan	49
7.5 Media Pre-Scan	50
7.6 Deferred Auto-Reallocation	50
7.7 Idle Read After Write	50
8.0 Installation	51
8.1 Drive ID/option selection	51
8.2 Drive orientation	51
8.3 Cooling	51
8.4 Drive mounting	52
8.5 Grounding	53
9.0 Interface requirements	55
9.1 FC-AL features	55
9.1.1 Fibre Channel link service frames	55
9.1.2 Fibre Channel task management functions	56
9.1.3 Fibre Channel task management responses	56
9.1.4 Fibre Channel port login	57
9.1.5 Fibre Channel port login accept	58
9.1.6 Fibre Channel Process Login	58
9.1.7 Fibre Channel Process Login Accept	59
9.1.8 Fibre Channel fabric login	59
9.1.9 Fibre Channel fabric accept login	60
9.1.10 Fibre Channel Arbitrated Loop options	61
9.2 Dual port support	61
9.3 SCSI commands supported	62
9.3.1 Inquiry data	66
9.3.2 Mode Sense data	66
9.4 Miscellaneous operating features and conditions	71
9.5 FC-AL physical interface	72
9.5.1 Physical characteristics	72
9.5.1.1 Physical description	72
9.5.2 Connector requirements	73
9.5.3 Electrical description	73
9.5.4 Pin descriptions	73
9.5.5 FC-AL transmitters and receivers	74
9.5.6 Power	75
9.5.7 Fault LED Out	75
9.5.8 Active LED Out	76
9.5.9 Enable port bypass signals	76
9.5.10 Motor start controls	76
9.5.11 SEL_6 through SEL_0 ID lines	77
9.5.11.1 Parallel Enclosure Services Interface (ESI)	77
9.5.12 Device control codes	79
9.6 Signal characteristics	79
9.6.1 TTL input characteristics	79
9.6.2 LED driver signals	80
9.6.3 FC Differential output	80
9.6.4 FC Differential input	80

Match case Limit results 1 per page

Cheetah 15K.5 FC Product Manual, Rev. F

5.0

Reliability specifications

The following reliability specifications assume correct host and drive operational interface, including all inter-

face timings, power supply voltages, environmental requirements and drive mounting constraints.

5.1

Error rates

The error rates stated in this manual assume the following:

•

The drive is operated in accordance with this manual using DC power as defined in paragraph 6.2, "DC

power requirements."

•

Errors caused by host system failures are excluded from error rate computations.

•

Assume random data.

•

Default OEM error recovery settings are applied. This includes AWRE, ARRE, full read retries, full write

retries and full retry time.

5.1.1

Recoverable Errors

Recovereable errors are those detected and corrected by the drive, and do not require user intervention.

Recoverable Data errors will use correction, although ECC on-the-fly is not considered for purposes of recov-

ered error specifications.

Recovered Data error rate is determined using read bits transferred for recoverable errors occurring during a

read, and using write bits transferred for recoverable errors occurring during a write.

5.1.2

Unrecoverable Errors

Unrecoverable Data Errors (Sense Key = 03h) are specified at less than 1 sector in error per 10

bits trans-

ferred. Unrecoverable Data Errors resulting from the same cause are treated as 1 error for that block.

Seek error rate:

Less than 10 errors in 10

seeks

Read Error Rates

Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated.

Recovered Data

Less than 10 errors in 10

bits transferred (OEM default settings)

Unrecovered Data

Less than 1 sector in 10

bits transferred

Miscorrected Data

Less than 1 sector in 10

bits transferred

Interface error rate:

Less than 1 error in 10

bits transferred with minimum receive eye.

Less than 1 error in 10

bits transferred with typical receive eye.

See Section 9.6.4, "FC Differential input." on page 72

Annualized Failure Rate (AFR):

0.62%

Preventive maintenance:

None required