Seagate ST973451FC, ST936751FC Implementation, State of the drive prior to testing, Invoking DST

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5.2.6.2Implementation

This section provides all of the information necessary to implement the DST function on this drive.

5.2.6.2.1State of the drive prior to testing

The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be in process of doing a format, or another DST. It is the responsibility of the host application to determine the “not ready” cause.

While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive.

A Drive Not Ready condition is reported by the drive under the following conditions:

•Motor will not spin

•Motor will not lock to speed

•Servo will not lock on track

•Drive cannot read configuration tables from the disc

In these conditions, the drive responds to a Test Unit Ready command with an 02/04/00 or 02/04/03 code.

5.2.6.2.2Invoking DST

To invoke DST, submit the Send Diagnostic command with the appropriate Function Code (001b for the short test or 010b for the extended test) in bytes 1, bits 5, 6, and 7.

5.2.6.2.3Short and extended tests

DST has two testing options:

1.short

2.extended

These testing options are described in the following two subsections.

Each test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan segment.

Short test (Function Code: 001b)

The purpose of the short test is to provide a time-limited test that tests as much of the drive as possible within 120 seconds. The short test does not scan the entire media surface, but does some fundamental tests and scans portions of the media. A complete read/verify scan is not performed and only factual failures will report a fault condition. This option provides a quick confidence test of the drive.

Extended test (Function Code: 010b)

The objective of the extended test option is to empirically test critical drive components. For example, the seek tests and on-track operations test the positioning mechanism. The read operation tests the read head element and the media surface. The write element is tested through read/write/read operations. The integrity of the media is checked through a read/verify scan of the media. Motor functionality is tested by default as a part of these tests.

The anticipated length of the Extended test is reported through the Control Mode page.

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Savvio 15K.1 FC Product Manual, Rev. B

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Contents Savvio 15K.1 FC ST973451FC ST936751FCPage Contents Physical/electrical specifications Defect and error managementInstallation Interface requirementsSeagate Technology support services Savvio 15K.1 FC Product Manual, Rev. B List of Figures Page Scope Savvio 15K.1 family disc driveSavvio 15K.1 FC Product Manual, Rev. B Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Reference documents Ncits TR-19Savvio 15K.1 FC Product Manual, Rev. B General description Standard features Media description PerformanceReliability Formatted capacitiesOptions Factory-installed accessoriesProgrammable drive capacity Performance characteristics Internal drive characteristicsSeek performance characteristics Access timeGeneral performance characteristics Format command execution timeStart/stop time Cache operation Prefetch/multi-segmented cache controlCaching write data Prefetch operation Error rates Reliability specificationsRecoverable Errors Reliability and service Unrecoverable ErrorsSeek errors Interface errors4 S.M.A.R.T Hot plugging the driveControlling S.M.A.R.T Performance impact Reporting controlDetermining rate Predictive failuresTemperature Log Page 0Dh Parameter Code DescriptionDrive Self Test DST DST failure definitionState of the drive prior to testing ImplementationInvoking DST Short and extended testsProduct warranty Log page entriesAbort ShippingProduct repair and return information AC power requirements Physical/electrical specificationsDC power requirements General DC power requirement notes Power sequencing Conducted noise immunityCurrent profiles +5V +12VTypical ST936751FC drive +12V and +5V current profiles CURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads Power dissipationST973451FC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads FC CURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads ST936751FCFC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads TemperatureEnvironmental limits Relative humidity Effective altitude sea levelShock and vibration ShockPackage size Packaged/product weight Drop height Recommended mounting Vibration Air cleanlinessCorrosive environment Acoustics Mechanical specifications Drive dimensions inchesDrive internal defects/errors Defect and error managementDrive error recovery procedures FC-AL system errors Media Pre-Scan Background Media ScanDeferred Auto-Reallocation Idle Read After Write Drive orientation InstallationCooling Drive mounting GroundingFC-AL features Fibre Channel link service framesLink services supported Type of frame Interface requirementsFibre Channel task management functions Fibre Channel task management responsesFibre Channel Scsi FCP task management functions Task name SupportedFibre 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 nameDisconnect/reconnect control page 02h Savvio 15K.1 FC Product Manual, Rev. B LBdata Supported commands Command code Supported 4 Command name Inquiry data Savvio inquiry data Bytes Data hexMiscellaneous operating features and conditions Miscellaneous featuresSupported Feature or condition Miscellaneous statusFC-AL physical interface Physical characteristicsPhysical description Part description Positions Part number Features Connector requirementsElectrical description Pin Signal name Signal type FC-SCA pin descriptions Pin Signal name Signal typePin descriptions Fault LED Out PowerFC-AL transmitters and receivers Active LED Out Enable port bypass signalsMotor start controls Parallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesArbitrated loop physical address Alpa values SettingHex Dec TTL input characteristics Signal characteristicsDevice control codes Differential Pecl output Differential Pecl inputSavvio 15K.1 FC Product Manual, Rev. B Seagate Technology support services InternetPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index NumericsFAN Page Plogi SEL ID See also cooling
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