Seagate ST2000NM0063 manual Mode Sense data

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11.3.2Mode Sense data

The Mode Sense command provides a way for the drive to report its operating parameters to the initiator. The drive maintains four sets of mode parameters:

1.Default values

Default values are hard-coded in the drive firmware stored in flash E-PROM (nonvolatile memory) on the drive’s PCB. These default values can be changed only by downloading a complete set of new firmware into the flash E-PROM. An initiator can request and receive from the drive a list of default values and use those in a Mode Select command to set up new current and saved values, where the values are changeable.

2.Saved values

Saved values are stored on the drive’s media using a Mode Select command. Only parameter values that are allowed to be changed can be changed by this method. Parameters in the saved values list that are not changeable by the Mode Select command get their values from default values storage.

When power is applied to the drive, it takes saved values from the media and stores them as current values in volatile memory. It is not possible to change the current values (or the saved values) with a Mode Select command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check Condition” status.

On drives requiring unique saved values, the required unique saved values are stored into the saved values storage location on the media prior to shipping the drive. Some drives may have unique firmware with unique default values also.

On standard OEM drives, the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping.

3.Current values

Current values are volatile values being used by the drive to control its operation. A Mode Select command can be used to change the values identified as changeable values. Originally, current values are installed from saved or default values after a power on reset, hard reset, or Bus Device Reset message.

4.Changeable values

Changeable values form a bit mask, stored in nonvolatile memory, that dictates which of the current values and saved values can be changed by a Mode Select command. A one (1) indicates the value can be changed. A zero (0) indicates the value is not changeable. For example, in Table 10, refer to Mode page 81, in the row entitled “CHG.” These are hex numbers representing the changeable val- ues for Mode page 81. Note in columns 5 and 6 (bytes 04 and 05), there is 00h which indicates that in bytes 04 and 05 none of the bits are changeable. Note also that bytes 06, 07, 09, 10, and 11 are not changeable, because those fields are all zeros. In byte 02, hex value FF equates to the binary pattern 11111111. If there is a zero in any bit position in the field, it means that bit is not changeable. Since all of the bits in byte 02 are ones, all of these bits are changeable.

The changeable values list can only be changed by downloading new firmware into the flash E-PROM.

Note. Because there are often several different versions of drive control firmware in the total population of drives in the field, the Mode Sense values given in the following tables may not exactly match those of some drives.

The following tables list the values of the data bytes returned by the drive in response to the Mode Sense command pages for SCSI implementation (see the SAS Interface Manual).

DEF = Default value. Standard OEM drives are shipped configured this way.

CHG = Changeable bits; indicates if default value is changeable.

CONSTELLATION ES.1 SAS PRODUCT MANUAL, REV. G

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Contents Constellation ES.1 SAS Document Revision History Contents Installation Inquiry data 11.3.2 Mode Sense data Figures Seagate Technology Support Services Model Number Self-Encrypting Drive SED Fips 140-2 Level ScopeApplicable Standards and Reference Documentation China Restriction of Hazardous Substances RoHS Directive Korean KCCTaiwanese Bsmi European Union Restriction of Hazardous Substances RoHSSAS Interface Manual General Description Standard Features DDADF508 Maximum without verify Performance CharacteristicsRead Write Average Single track Full strokeGeneral performance characteristics Prefetch operation Caching write dataSeek errors Reliability SpecificationsRecoverable Errors Unrecoverable ErrorsHot plugging the drive Preventive maintenanceReporting control 4 S.M.A.R.TControlling S.M.A.R.T Performance impactDST failure definition Thermal monitorParameter Code Description Drive Self Test DSTShort and extended tests State of the drive prior to testingImplementation Invoking DSTStorage Product warrantyAbort ShippingPHYSICAL/ELECTRICAL Specifications 0Gb mode Amps 2TB drive Standard & SED model DC power requirements1TB drive Standard & SED model DC power requirements 500GB drive Standard & SED model DC power requirements Conducted noise immunity Power sequencingCurrent profiles TB model current profiles GB model current profiles Power Dissipation Constellation ES.1 SAS Product MANUAL, REV. G Constellation ES.1 SAS Product MANUAL, REV. G Constellation ES.1 SAS Product MANUAL, REV. G Constellation ES.1 SAS Product MANUAL, REV. G Constellation ES.1 SAS Product MANUAL, REV. G Shock and vibration Temperature a. OperatingRelative humidity Effective altitude sea level a. OperatingShock Package size Packaged/product weight Drop heightCorrosive environment Air cleanlinessVibration AcousticsMounting configuration dimensions Weight maximumValidation Program PurposeSeagate Enterprise SED Locking SP Admin SPDefault password About SELF-ENCRYPTING DrivesSanitize Cryptographic Erase Drive Internal DEFECTS/ERRORS Defect and Error ManagementRead and write retry count maximum recovery times Levels of PI Setting and determining the current Type LevelIdentifying a Protection Information drive Physical interface InstallationX = F 15lb = 67N Task management responses Interface RequirementsTask management functions SAS task management functions supportedCommand name Command code Supported Supported commandsSupported commands Supported commands Supported commands Inquiry data Mode Sense data Mode Pages Mode Sense data changeable and default values for 1TB drives Mode Pages Supported Status Miscellaneous featuresSupported Feature or condition Miscellaneous statusDatum B Section C C Section a a Electrical description Physical characteristicsConnector requirements Pin Signal name Signal typeReady LED Out conditions PowerSAS transmitters and receivers Ready LED OutDifferential signals LED drive signalGeneral interface characteristics Index Latency Index SAS Seagate Technology LLC

ST2000NM0063 specifications

The Seagate ST2000NM0063 is a high-performance internal hard disk drive designed for enterprise environments, offering a robust solution for those requiring reliable data storage. With a storage capacity of 2TB, this drive is ideal for both small and large enterprises, catering to applications ranging from data centers to surveillance systems.

One of the main features of the ST2000NM0063 is its 7200 RPM rotational speed, which ensures rapid data access and improved overall performance. This speed allows for faster read and write times, making it suitable for applications that demand quick data retrieval and processing. The drive supports a SATA 6Gb/s interface, which provides enhanced data transfer rates. This modern interface is essential for maximizing throughput, particularly when deployed in environments where speed is critical.

In terms of technology, the Seagate ST2000NM0063 utilizes Advanced Format Technology, enhancing data storage efficiency and increasing the number of user-addressable sectors. This feature allows for better alignment of data on the drive, which can lead to improved performance and reliability. Additionally, the drive incorporates the Seagate PowerChoice technology, enabling energy-efficient operations. This technology helps reduce power consumption during idle periods, contributing to lower operating costs and a smaller carbon footprint.

The ST2000NM0063 also emphasizes data integrity and reliability. Equipped with features such as error recovery control and vibration tolerance, this drive is designed to operate in challenging conditions. These attributes make it an excellent choice for RAID configurations and other enterprise applications that require high data availability and protection against data loss.

Furthermore, the ST2000NM0063 has a mean time between failures (MTBF) rating of 1.2 million hours, signifying its durability and long lifespan. This reliability is crucial for critical business applications where downtime is not an option.

In summary, the Seagate ST2000NM0063 combines high capacity, excellent performance, and advanced technologies to meet the demanding needs of enterprise storage. Its reliability, efficiency, and robust features make it a preferred choice for organizations looking to enhance their data storage solutions while ensuring optimal performance and longevity. Whether utilized in cloud storage, surveillance, or data center applications, this hard drive stands out as a dependable component in any IT infrastructure.
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