Seagate ST3600002FC, ST3300602FC Active LED Out, Enable port bypass signals, Motor start controls

Page 74

9.5.8Active LED Out

The Active LED Out signal is driven by the drive as indicated in Table 24.

Table 24: 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

Toggles on/off

 

 

Write Same command in progress

Togles 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 disk 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 disk drive. A pull down resistor, 1K, located with the PBC should be used to insure the bypass is enabled if the disk 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 disk 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 25. The state of these signals can be wired into the backplane socket or driven by logic on the backplane.

Table 25:

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.

 

 

 

 

68

Cheetah NS 10K.2 FC Product Manual, Rev. B

Page 73 Page 75
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Page 73 Page 75
Contents Cheetah NS 10K.2 FC ST3600002FC ST3450802FC ST3300602FCPage Contents Installation Seagate Technology support services Cheetah NS 10K.2 FC Product Manual, Rev. B Scope Cheetah NS 10K.2 FC Product Manual, Rev. B Electromagnetic compatibility Standards, compliance and reference documentsStandards Electromagnetic susceptibilityCompliance Reference documents Ncits TR-19Cheetah NS 10K.2 FC Product Manual, Rev. B General description Standard features Media descriptionFormatted capacities PerformanceReliability Programmable drive capacity Factory-installed optionsUser-installed accessories Access time Performance characteristicsInternal drive characteristics Seek performanceStart/stop time Format command execution time minutesGeneral performance characteristics ST3600002FC ST3450802FC ST3300602FCPrefetch/multi-segmented cache control Cache operationCaching write data Prefetch operationRecoverable Errors Reliability specificationsError rates Unrecoverable ErrorsInterface errors Reliability and serviceSeek errors Preventive maintenanceControlling S.M.A.R.T A.R.T. delay times4 S.M.A.R.T Performance impactPredictive failures Reporting controlDetermining rate Thermal monitorDrive Self Test DST State of the drive prior to testingTemperature Log Page 0Dh DST failure definitionShort test Function Code 001b Invoking DSTShort and extended tests Extended test Function Code 010bProduct warranty AbortCheetah NS 10K.2 FC Product Manual, Rev. B DC power requirements Physical/electrical specificationsAC power requirements DC power requirements for ST3600002FC model Gbit AmpsDC power requirements for ST3450802FC model Gbit Amps General DC power requirement notes DC power requirements for ST3300602FC model Gbit AmpsCurrent profiles Power sequencingConducted noise immunity Cheetah NS 10K.2 FC Product Manual, Rev. B Cheetah NS 10K.2 FC Product Manual, Rev. B Power dissipation ST3600002FCST3450802FC ST3300602FC Relative humidity Temperature a. OperatingEnvironmental limits Shock Effective altitude sea level a. OperatingShock and vibration Package size Packaged/product weight Drop height Recommended mountingAcoustics Air cleanlinessVibration a. Operating-normal Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Mechanical specifications Mounting configuration dimensionsCheetah NS 10K.2 FC Product Manual, Rev. B Drive error recovery procedures Defect and error managementDrive internal defects/errors 77.81 Media Pre-Scan FC-AL system errorsBackground Media Scan Deferred Auto-Reallocation Idle Read After WriteDrive orientation InstallationDrive ID/option selection CoolingDrive mounting Air flowGrounding Cheetah NS 10K.2 FC Product Manual, Rev. B Link services supported Type of frame FC-AL featuresFibre Channel link service frames 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 BytesNPort Login Accept ACC payload Bytes Fibre Channel port login acceptFibre Channel Process Login Process Login Plri payloadProcess Login Accept ACC payload Bytes Fibre Channel Process Login AcceptFibre Channel fabric login Fabric Login Flogi payload BytesFibre Channel fabric accept login Fabric Login Accept ACC payload BytesFC-AL options supported Dual port supportFibre Channel Arbitrated Loop options Option SupportedScsi commands supported Supported commands Command code Command nameVerify error recovery page 07h Cheetah NS 10K.2 FC Product Manual, Rev. B Temperature page 0Dh Cheetah NS 10K.2 FC inquiry data Bytes Data hex Mode Sense dataInquiry data Page Mode Data Header Mode Pages 00 00 05 12 8B 00 50 Miscellaneous operating features and conditions Supported Feature or conditionPhysical description Physical characteristicsFC-AL physical interface Pin descriptions Connector requirementsElectrical description FC-SCA pin descriptions Pin Signal name Signal type FC-AL transmitters and receiversPower Fault LED OutMotor start controls Enable port bypass signalsActive LED Out Parallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesAlpa SEL ID 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 Cheetah NS 10K.2 FC Product Manual, Rev. B Technical Support Seagate Technology support servicesPresales Support Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index FCP Flogi Plogi Page See also cooling Page Seagate Technology LLC
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