Seagate ST373207LW, ST3146855LC, ST3146855LW, ST3300655LW, ST3300655LC Function description, Res

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9.1.2Function description

J6

 

 

jumper

 

 

installation

Jumper function description

SE

 

 

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, depend-

 

 

ing 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 - Default setting.

Off

On

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

On

Off

Spindle Startup is delayed by SCSI ID times 12 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.

RES

 

 

Off

 

Reserved jumper position. Default is no RES jumper installed.

TP

 

 

Off

 

The drive does not supply terminator power to external terminators or to the SCSI bus I/O

 

 

cable.

On

 

Drive supplies power to SCSI bus I/O cable. When drives have differential I/O circuits, a

 

 

jumper on the TP position may be needed to power external terminators (see system docu-

 

 

mentation). These drives do not have terminator circuits on the drive.

Note.

J6 does not exist on the LC model and is supported on the LW model only.

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Cheetah 15K.5 SCSI Product Manual, Rev. J

Image 48
Contents Cheetah 15K.5 Scsi Page Contents Defect and error management InstallationInterface requirements List of Figures Page Seagate Technology support services Seagate Online Support and ServicesScope Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance European Union Restriction of Hazardous Substances RoHSReference documents Drive model number vs. differentiating features General descriptionStandard features Media characteristicsPerformance ReliabilityFormatted capacities Factory installed accessories Options factory installedAccessories Programmable drive capacityPerformance characteristics Internal drive characteristics transparent to userScsi performance characteristics visible to user Format command execution time minutes Generalized performance characteristicsSeek time Start/stop time Prefetch/multi-segmented cache controlCache operation Caching write data Prefetch operationReliability specifications Error ratesRecoverable Errors Unrecoverable ErrorReliability and service Seek errorsPreventive maintenance Hot plugging Cheetah 15K.5 Scsi disc drives 4 S.M.A.R.TControlling S.M.A.R.T Performance impactMilliseconds Reporting controlTemperature Log page 0Dh Parameter Code Description Thermal monitorDrive Self Test DST State of the drive prior to testing DST Failure DefinitionImplementation Invoking DSTProduct warranty Short test Function Code 001bExtended test Function Code 010b Log page entriesShipping Product repair and return informationPhysical/electrical specifications AC power requirementsDC power requirements ST3300655LC DC power requirementsST3146855LC DC power requirements ST373455LC DC power requirementsPower sequencing Conducted noise immunityCurrent profile Typical ST3300655LW drive +12V LVD current profile Power dissipation ST3300655LW/ST3300655LCST3146855LC DC current and power vs. Iops LVD ST3146855LW/ST3146855LCST373455LC DC current and power vs. Iops LVD ST373455LW/ST373455LCTemperature a. Operating Environmental limitsRelative humidity Effective altitude sea level a. OperatingShock and vibration ShockRecommended mounting Air cleanliness Vibration a. Operating-normalCorrosive environment Mechanical specifications AcousticsLC mounting configuration dimensions Defect and error management Drive error recovery proceduresDrive internal defects Read and write retry count maximum recovery times Scsi systems errors Background Media ScanMedia Pre-Scan Deferred Auto-Reallocation Idle Read After WriteInstallation Configure drive optionsDrive ID/option select header FormattingJ5 jumper header on LW models only Drive Front Function description RESDrive orientation CoolingDrive mounting GroundingInterface requirements General descriptionScsi interface messages supported Scsi messages supported by Cheetah 15K.5 Scsi family drivesScsi interface commands supported Commands supported by Cheetah 15K.5 Scsi family driveCommands supported by Cheetah 15K.5 Scsi family drive Commands supported by Cheetah 15K.5 Scsi family drive Commands supported by Cheetah 15K.5 Scsi family drive Cheetah 15K.5 Scsi family drive Standard Inquiry data Inquiry Vital Product dataMode Sense data ST3300655 Mode sense data Mode Sense Pages DataST3146855 Mode sense data Mode Sense Header Data Mode Sense Pages DataST373455 Mode sense data Scsi bus conditions and miscellaneous features supported Scsi bus conditions and other miscellaneous featuresSynchronous data transfer Physical interfaceDC cable and connector Scsi interface physical description Mating connectors Interface transfer rates supportedScsi interface cable requirements Cable requirementsMating connectors for LW model drives Mating connectors for LC model drivesRight-angle to Pcba connectors Scsi daisy-chain interface cabling for LW drivesNonshielded 68-pin Scsi device connector used on LW drives Nonshielded 80-pin Scsi SCA-2 connector used on LC drives GND LW 68-conductor LVD P cable signal/pin assignments LC 80-pin single-ended SE I/O connector pin assignments Active LED OUT 4LC 80-pin single-ended LVD I/O connector pin assignments +5 V Charge GND Active LED OUT 4LVD output characteristics Electrical descriptionMultimode-SE and LVD alternatives LVD Input characteristics General cable characteristicsCable characteristics for single-ended circuits Single-ended drivers/receiversCables for low voltage differential drivers/receivers Twist-n-flat cables-into a multi-drive backplaneTerminator requirements Terminator power LW drivesLC drives Disc drive Scsi timing Disc drive Scsi timingDisc drive Scsi timing Drive activity LED status Spindle status Command status Drive activity LEDSymbols NumericsPage Page Scsi Page Page