Seagate ST1000NM0033 manual Drive Self Test DST, DST failure definition, Implementation

Page 20

A temperature sensor monitors the drive temperature and issues a warning over the interface when the temperature exceeds a set threshold. The temperature is measured at power-up and then at ten-minute intervals after power-up.

The thermal monitor system generates a warning code of 01-0B01 when the temperature exceeds the specified limit in compliance with the SCSI standard. The drive temperature is reported in the FRU code field of mode sense data. You can use this information to determine if the warning is due to the temperature exceeding the drive threatening temperature or the user-specified temperature.

This feature is controlled by the Enable Warning (EWasc) bit, and the reporting mechanism is controlled by the Method of Reporting Informational Exceptions field (MRIE) on the Informational Exceptions Control (IEC) mode page (1Ch).

The current algorithm implements two temperature trip points. The first trip point is set at 65°C which is the maximum temperature limit according to the drive specification. The second trip point is user-selectable using the Log Select command. The reference temperature parameter in the temperature log page (see Table 1) can be used to set this trip point. The default value for this drive is 65°C, however, you can set it to any value in the range of 0 to 65°C. If you specify a temperature greater than 65°C in this field, the temperature is rounded down to 65°C. A sense code is sent to the host to indicate the rounding of the parameter field.

Table 1: Temperature Log Page (0Dh)

Parameter Code

Description

 

 

0000h

Primary Temperature

 

 

0001h

Reference Temperature

 

 

5.2.5Drive Self Test (DST)

Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive as a failed unit. DST validates the functionality of the drive at a system level.

There are two test coverage options implemented in DST:

1.Extended test

2.Short test

The most thorough option is the extended test that performs various tests on the drive and scans every logical block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the entire media surface, but does some fundamental tests and scans portions of the media.

If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test, remove it from service and return it to Seagate for service.

5.2.5.1DST failure definition

The drive will present a “diagnostic failed” condition through the self-tests results value of the diagnostic log page if a functional failure is encountered during DST. The channel and servo parameters are not modified to test the drive more stringently, and the number of retries are not reduced. All retries and recovery processes are enabled during the test. If data is recoverable, no failure condition will be reported regardless of the number of retries required to recover the data.

The following conditions are considered DST failure conditions:

•Seek error after retries are exhausted

•Track-follow error after retries are exhausted

•Read error after retries are exhausted

•Write error after retries are exhausted

Recovered errors will not be reported as diagnostic failures.

5.2.5.2Implementation

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

5.2.5.2.1State 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.

CONSTELLATION ES.3 SAS PRODUCT MANUAL, REV. B

15

Page 19 Page 21
Image 20
Page 19 Page 21
Contents Constellation ES.3 SAS Document Revision History Contents Installation Contents Seagate Technology Support Services Scope SEDApplicable Standards and Reference Documentation StandardsAustralian C-Tick Korean KCCTaiwanese Bsmi European Union Restriction of Hazardous Substances RoHSChina Restriction of Hazardous Substances RoHS Directive Reference DocumentsGeneral Description Performance Standard FeaturesMedia Description FACTORY-INSTALLED Options ReliabilityFormatted Capacities Programmable Drive CapacityPerformance Characteristics Internal Drive CharacteristicsFormat command execution time for 512-byte sectors minutes General performance characteristicsCache Operation START/STOP TimePREFETCH/MULTI-SEGMENTED Cache Control Caching write data Prefetch operationReliability and Service Reliability SpecificationsError Rates Hot plugging the drive 3 S.M.A.R.TControlling S.M.A.R.T Performance impactReporting control Determining rateState of the drive prior to testing Drive Self Test DSTDST failure definition ImplementationInvoking DST Short and extended testsShort test Function Code 001b Extended test Function Code 010bProduct warranty ShippingStorage Product repair and return informationPowerChoice modes PHYSICAL/ELECTRICAL SpecificationsPowerchoicetm Power Management AC Power Requirements DC Power Requirements4TB drive DC power requirements 3TB drive DC power requirements 2TB drive DC power requirements 1TB drive DC power requirements Conducted noise immunity General DC power requirement notesPower sequencing Current profiles TB model current profilesTB model current profiles TB model current profiles TB model current profiles 4TB models in 6Gb operation Power Dissipation4TB models in 3Gb operation 3TB models in 3Gb operation 3TB models in 6Gb operation2TB models in 3Gb operation 2TB models in 6Gb operation1TB models in 3Gb operation 1TB models in 6Gb operationTemperature a. Operating Environmental LimitsImage is for reference only, may not represent actual drive Relative humidityShock and vibration ShockRecommended mounting Air cleanliness VibrationAcoustics Corrosive environmentMechanical Specifications 1TBPurpose Validation ProgramSeagate Enterprise SED Security LevelControlled Access About SELF-ENCRYPTING DrivesData Encryption Random Number Generator RNGAuthenticated Firmware Download Power RequirementsSupported Commands Data BandsDrive Error Recovery Procedures Defect and Error ManagementDrive Internal DEFECTS/ERRORS SAS System Errors Background Media ScanMedia PRE-SCAN Deferred AUTO-REALLOCATIONIdle Read After Write Protection Information PISetting and determining the current Type Level Identifying a Protection Information driveCooling InstallationDrive Orientation Drive Mounting X = F 15lb = 67NGrounding SAS Features Interface RequirementsTask management functions Task management responsesScsi Commands Supported Supported commands Supported commands Supported commands Inquiry data Constellation ES.3 inquiry dataMode Sense data Block Descriptor CHG 9C 0A 9D 0F FF FF FF FF FF FF FF FF DEF 12 1400 FF FF 00 00 FF FF FF FF 80 20 00 00 00 00 00 Miscellaneous Operating Features and Conditions Miscellaneous featuresSAS physical interface Datum B Section C C Section a a Physical characteristics Connector requirementsElectrical description Pin descriptionsPower Signal CharacteristicsSAS transmitters and receivers Ready LED OutAdditional Information Differential signalsSAS-2 Specification Compliance Index Page KCC See also cooling Page Seagate Technology LLC
Related manuals
Manual 52 pages 18.94 Kb

ST1000NM0033 specifications

The Seagate ST1000NM0033 is a high-performance hard disk drive (HDD) designed specifically for enterprise applications. With a storage capacity of 1TB, it offers a balance of performance, reliability, and efficiency, making it suitable for data centers, cloud storage, and server environments. Built with Seagate's robust engineering, the ST1000NM0033 is ideal for handling heavy workloads and intensive data processes.

One of the standout features of this HDD is its rotational speed of 7200 RPM. This speed allows for quick data access and fast read/write operations, which is essential for data-intensive applications. The drive is equipped with 64MB of cache, further enhancing its efficiency by speeding up data retrieval for frequently accessed files.

Another key characteristic of the ST1000NM0033 is its SATA interface, which typically facilitates high-bandwidth data transfer rates. With a sustained data transfer rate of up to 160 MB/s, it ensures that large files, such as videos and databases, can be transferred swiftly, minimizing downtime and improving overall system performance.

The drive's durability is backed by Seagate’s Advanced Format technology, which enhances the format compatibility, storage efficiency, and reliability of the drive through improved error correction. With a mean time between failures (MTBF) rating of 1 million hours, users can trust the STA0033 to provide exceptional longevity and stability, critical in enterprise environments where data integrity is paramount.

Furthermore, the ST1000NM0033 supports various workload types due to its design optimized for multi-user environments. The drive can handle up to 180TB/year workload rate, making it capable of supporting applications with high data demand.

Environmentally, Seagate ensures that this model is energy efficient, contributing to reduced power consumption in enterprise settings. The drive operates effectively within a specified temperature range, ensuring that it remains operational under different environmental conditions.

In summary, the Seagate ST1000NM0033 is an excellent choice for businesses seeking a reliable, high-capacity HDD with robust performance features. Its combination of speed, efficiency, durability, and capacity positions it as a strong contender in the enterprise storage solutions market. With its extensive feature set, it continues to cater to the demanding needs of modern data centers and enterprise applications.
Top Page Image Contents