Seagate ST336918N, ST318418N manual Barracuda 36ES2 Product Manual, Rev. B Function description

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Barracuda 36ES2 Product Manual, Rev. B

41

8.1.2Function description

J2

 

jumper

 

installation

Jumper function description

TE (Applies only to the N models)

On

With the jumper installed, the onboard (non-removable) terminator circuits are enabled (con-

 

nected to the I/O lines).

Off

Terminator circuits not enabled (not connected to I/O lines). Default is jumper installed.

SE (Applies only to the LW model)

On

 

Forces drive to use single-ended I/O drivers/receivers only.

Off

 

Drive can operate on the interface in low voltage differential mode or single-ended,

 

 

depending on the voltage state of the I/O “DIFFSNS” line. Default is SE jumper not installed.

DS

ME

 

Off

Off

Spindle starts immediately after power up—Defaultsetting.

Off

On

Drive spindle does not start until Start Unit command received from host.

On

Off

Spindle Startup is delayed by SCSI ID times12 seconds after power is applied, i.e., drive 0

 

 

spindle starts immediately when DC power connected, drive 1 starts after 12 second delay,

 

 

drive 2 starts after 24 second delay, etc.

On

On

Drive spindle starts when Start Unit command received from host. Delayed start feature is

 

 

overridden and does not apply when ME jumper is installed.

WP

 

 

On

 

Entire drive is write protected.

Off

 

Drive is not write protected. Default is WP jumper not installed.

PD

 

 

On

 

Parity checking and parity error reporting by the drive is disabled.

Off

 

Drive checks for parity and reports result of parity checking to host.

 

 

Default is PD jumper not installed.

TP1 (Applies only to the LW and N models)

Off

No terminator power is connected to SCSI bus I/O cable [1]. No jumpers on is factory default.

On

Drive supplies power to SCSI bus I/O cable [1]. A jumper on the TP1 position may be needed

 

to power external terminators (see Section 9.8 and Figure 21).

TP2 (Applies only to the N models)

On

Connects terminator power to the drive’s internal terminators [2] (for single-ended I/O only).

Off

No power is connected to the drives internal terminators. Default is jumper installed.

[1]See Figure 13 for pins used for Termpower.

[2]See Figure 14 for pins used for Termpower.

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Contents Product Manual, Volume Page Product Manual, Volume Page Revision Date Writer/Engineer Sheets Affected Revision status summary sheetPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support servicesBarracuda 36ES2 Product Manual, Rev. B Vii List of FiguresPage Barracuda 36ES2 family drive ST336938LW shown ScopeBarracuda 36ES2 Product Manual, Rev. B Applicable standards and reference documentation Australian C-Tick Korean MICTaiwanese Bsmi General description Reliability Standard featuresMedia characteristics PerformanceFactory installed accessories Options factory installedProgrammable drive capacity Performance characteristics Ultra2 Scsi Ultra160 Scsi Start/stop timePrefetch/multi-segmented cache control Caching write data Cache operationPrefetch operation Barracuda 36ES2 Product Manual, Rev. B Reliability specifications Service philosophy Reliability and servicePreventive maintenance Service lifeControlling S.M.A.R.T 7 S.M.A.R.TPredictive failures Performance impactReporting control Determining rateInvoking DST State of the drive prior to testingDST Failure Definition ImplementationLog page entries Product warrantyShort test Function Code 001b Extended test Function Code 010bProduct repair and return information Barracuda 36ES2 Product Manual, Rev. B Physical/electrical specifications AC power requirementsDC power requirements Power sequencing Conducted noise immunity3 12 V Current profile +5 Volt Current during spindle start Typical Amper es Amps Power dissipation ST336938/ST318438 Barracuda 36ES2 Product Manual, Rev. B ST336918/ST318418 Environmental limits TemperatureShock Barracuda 36ES2 Product Manual, Rev. B Relative humidityEffective altitude sea level Shock and vibrationRecommended mounting Air cleanliness Barracuda 36ES2 Product Manual, Rev. B VibrationAcoustics Dimension Table Mechanical specificationsMounting configuration dimensions Barracuda 36ES2 Product Manual, Rev. B Defect and error management Drive error recovery proceduresDrive internal defects Scsi systems errors Drive ID/option select header InstallationConfigure drive options FormattingDo not install jumpers retain cover J6 jumper header for N model J5 jumper header on LW models only J2 option select header for LW models Barracuda 36ES2 Product Manual, Rev. B Barracuda 36ES2 Product Manual, Rev. B Function description Drive orientation CoolingAir flow Grounding Barracuda 36ES2 Product Manual, Rev. B Drive mountingBarracuda 36ES2 Product Manual, Rev. B Scsi interface messages supported Interface requirementsScsi interface commands supported Commands supported by Barracuda 36ES2 family drives Barracuda 36ES2 Product Manual, Rev. B Vendor ID Firmware numbers page C0h Inquiry Vital Product dataUnit serial number page 80h Implemented operating definition page 81hJumper settings page C2h Mode Sense data DEF CHG Barracuda 36ES2 Product Manual, Rev. B Condition/features supported Supported Status supported DC cable and connector 2 REQ/ACK offsetPhysical interface Model drive physical interface 50-pin Scsi I/O connector Pin Power Scsi interface cable requirements Scsi interface physical descriptionMating connectors for N model drives Barracuda 36ES2 Product Manual, Rev. B Mating connectorsScsi daisy chain interface cabling for N drives Nonshielded 68 pin Scsi device connector used on LW drives Scsi daisy chain interface cabling for LW drives GND GND DBP1 +DBP1 Multimode signals Electrical descriptionMultimode-SE and LVD alternatives LVD output signals Input characteristicsSingle-ended drivers/receivers for LW models Transmitter characteristicsReceiver characteristics Single-ended drivers/receivers for N modelsLow voltage differential I/O circuits General cable characteristicsTerminator power Drives Terminator requirementsLW drives Page Following table provides drive activity LED status Drive activity LEDTechnical Support Seagate Technology support services Online ServicesAutomated Services Presales SupportCustomer Service CSO USA/Canada/Latin America Support ServicesEuropean Support Services Africa/Middle East Support Services Asia/Pacific Support ServicesCall Center Toll-free Direct dial Barracuda 36ES2 Product Manual, Rev. B Index Diffsens LED PCB System chassis Barracuda 36ES2 Product Manual, Rev. B