Seagate ES.2 FC, ST31000640FC Active LED Out, Enable port bypass signals, Motor start controls

Page 68

9.5.8Active LED Out

The Active LED Out signal is driven by the drive as indicated in Table 20.

Table 20: Active LED Out conditions

Normal command activity

LED status

 

 

Spun down and no activity

Slow blink (20% on and 80% off a 2 sec cycle)

 

 

Spun down and activity (command executing)

On

 

 

Spun up and no activity

On

 

 

Spun up and activity (command executing)

Off

 

 

Spinning up or down

Blinks steadily (50% on and 50% off)

 

 

Format in progress, each cylinder change

Toggles on/off

 

 

The Active LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +5 volt supply through an appropriate current limiting resistor. The LED and the current limiting resistor are external to the drive.

9.5.9Enable port bypass signals

The – Enable Bypass Port A (– EN BYP Port A) and – Enable Bypass Port B (– EN BYP Port B) signals control the port bypass circuits (PBC) located external to the disc drive. The PBC allows a loop to remain functional in the event of a drive failure or removal. When these signals are active, low, the PBC bypasses the drive on the associated port. When an Enable Bypass signal is active, the corresponding Port Bypass LED signal in con- nector J1 is driven low by the disc drive. A pull down resistor, 1K, located with the PBC should be used to insure the bypass is enabled if the disc drive is not installed.

The Enable Bypass signal is active under failing conditions within the drive, on detection of the Loop Port Bypass primitive sequence, or on removal of the drive. In the bypass state the drive continues to receive on the inbound fibre. Enable Bypass may be deactivated by detection of a Loop Port Enable primitive sequence if the drive has completed self-test and a hardware failure is not present.

Failure modes detected by the disc drive that will enable bypass include:

•Transmitter/receiver wrap test failure

•Loss of receive clock

•Loss of transmission clock

•Drive interface hardware error

9.5.10Motor start controls

The drive’s motor is started according to the Start_1 and Start_2 signals described in Table 21. The state of these signals can be wired into the backplane socket or driven by logic on the backplane.

Table 21:

Motor start control signals

 

 

 

 

 

Case

Start_2

Start_1

Motor spin function

 

 

 

 

1

Low

Low

Motor spins up at DC power on.

 

 

 

 

2

High

Low

Motor spins up only when SCSI Start command is received.

 

 

 

 

3

Low

High

Motor spins up after a delay of 12 seconds times the modulo 8 value

 

 

 

of the numeric SEL ID of the drive from DC power on.

 

 

 

 

4

High

High

The drive will not spin up.

 

 

 

 

60

Barracuda ES.2 FC Product Manual, Rev. B

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Contents Barracuda ES.2 FC ST31000640FCPage Barracuda ES.2 FC Product Manual, Rev. B Barracuda ES.2 FC Product Manual, Rev. B Contents Physical/electrical specifications Defect and error managementInstallation Interface requirementsSeagate Technology support services Barracuda ES.2 FC Product Manual, Rev. B Scope Barracuda ES.2 FC Product Manual, Rev. B Standards, compliance and reference documents StandardsElectromagnetic compatibility Electromagnetic susceptibilityCompliance Reference documents Ncits TR-19Barracuda ES.2 FC Product Manual, Rev. B General description Standard features Media descriptionPerformance ReliabilityFormatted capacities Programmable drive capacityFactory-installed options User-installed accessoriesPerformance characteristics Internal drive characteristicsAccess time Format command execution time minutesPrefetch/multi-segmented cache control General performance characteristicsStart/stop time Cache operation Caching write dataPrefetch operation Reliability specifications Error ratesRecoverable Errors Unrecoverable ErrorsReliability and service Seek errorsInterface errors Preventive maintenance4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact MillisecondsReporting control Determining ratePredictive failures Thermal monitorState of the drive prior to testing Parameter Code DescriptionDrive Self Test DST DST failure definitionInvoking DST Short and extended testsShort test Function Code 001b Extended test Function Code 010bProduct warranty AbortShipping Product repair and return informationBarracuda ES.2 FC Product Manual, Rev. B Physical/electrical specifications AC power requirementsDC power requirements DC power requirements Gbit AmpsConducted noise immunity General DC power requirement notesPower sequencing Current profiles Power dissipation Relative humidity TemperatureEnvironmental limits Package size Packaged/product weight Drop height Effective altitude sea levelShock and vibration ShockAir cleanliness VibrationAcoustics Corrosive environmentX表示该部件（于同类物品程度上）所含的危险和有毒物质中国RoHS MCV标准所定义的门槛值。 China Restriction of Hazardous Substances RoHS DirectiveMechanical specifications Mounting configuration dimensionsBarracuda ES.2 FC Product Manual, Rev. B Drive error recovery procedures Defect and error managementDrive internal defects/errors 51.87 Media Pre-Scan FC-AL system errorsBackground Media Scan Deferred Auto-Reallocation Idle Read After WriteInstallation Drive ID/option selectionDrive orientation CoolingDrive mounting Air flowGrounding Barracuda ES.2 FC Product Manual, Rev. B FC-AL features Fibre Channel link service framesLink services supported Type of frame Interface requirementsFC Scsi FCP response codes Function name Response code Fibre Channel task management functionsFibre Channel task management responses Fibre Channel port login NPort login Plogi payload BytesFibre Channel port login accept Fibre Channel Process LoginNPort Login Accept ACC payload Bytes Process Login Plri payloadFibre Channel Process Login Accept Fibre Channel fabric loginProcess Login Accept ACC payload Bytes Fabric Login Flogi payload BytesFibre Channel fabric accept login Fabric Login Accept ACC payload BytesDual port support Fibre Channel Arbitrated Loop optionsFC-AL options supported Option SupportedScsi commands supported Supported commands Command code Command nameVerify error recovery page 07h Barracuda ES.2 FC Product Manual, Rev. B Temperature page 0Dh Barracuda ES.2 FC inquiry data Bytes Data hex Mode Sense dataInquiry data Page Block Descriptor Mode Sense Pages Data Miscellaneous operating features and conditions Miscellaneous featuresSupported Feature or condition Miscellaneous statusPhysical description Physical characteristicsFC-AL physical interface Pin descriptions Connector requirementsElectrical description FC-AL transmitters and receivers FC-SCA pin descriptions Pin Signal name Signal typePin Signal name Signal type Power Fault LED OutMotor start controls Enable port bypass signalsActive LED Out Parallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesHex Dec SettingArbitrated loop physical address Alpa values Device control codes Signal characteristicsTTL input characteristics FC Differential input LED driver signalsFC Differential output Receive eye diagram Eye diagram data values Link rate GHz Barracuda ES.2 FC Product Manual, Rev. B Seagate Technology support services InternetPresales Support Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index NumericsFAN Flogi Plogi SEL ID See also cooling

ST31000640FC, ES.2 FC specifications

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