Seagate 6451, 6450 Standby timer timeout period, Sleep command 99H, E6H, Automatic Reallocation

Page 42

34

Medalist Pro 6450/6451 Product Manual, Rev. B

3.2.3Standby timer timeout period

The Idle command and Standby command Sector Count registers are used to activate the Standby timer. The host can enable the Standby timer by placing a value in the sector-count register of the Idle command or Standby command. The value corresponds to a predetermined period of drive inactivity. The table below lists the values the Seagate drives use and their corresponding timeout period.

Sector Count Register contents

Corresponding timeout period

0 (0H)

Timeout disabled

1–12 (1H–CH)

value = 60 seconds

13–240 (DH–F0H)

(value * 5) seconds

241–251 (F1H–FBH)

(value – 240 * 30) minutes

252

(FCH)

21 minutes

253

(FDH)

8 hours

254

(FEH)

Reserved

255

(FFH)

21 minutes 15 seconds

The drives are shipped with the Standby timer disabled.

3.2.4Sleep command (99H, E6H)

This command performs the same function as the Standby Immediate command (94H, E0H).

3.2.5Automatic Reallocation

This feature allows the drive to identify grown media defects and to reallocate the sector without host intervention using both Read and Write Automatic Reallocation.

You can disable Read Reallocation by using the Set Features command Disable Read Automatic Reallocation, feature value 84H. This feature is not used for the Read Long command.

You can disable The Write Reallocation, in addition to write cache by using the Set Feature command Disable Write Cache, feature value 82H. This feature is not implemented for the Write Long command.

Page 41 Page 43
Image 42
Page 41 Page 43
Contents Product Manual Page Product Manual Page Contents Configuring and mounting the drive Appendix. Timing diagramsATA interface Figures Medalist Pro 6450/6451 Product Manual, Rev. B Introduction Capacity PerformanceEnergy-efficiency Quick specification chart Drive specification ST36450A ST36451AVoltage tolerance including noise +12V Specifications Standard configurationFormatted capacity Functional specifications Physical organizationST36450A ST36451A Physical dimensions Seek timeMultisegmented cache buffer Typical power-up and power-down sequence Start and stop timesPower specifications Power management Power-up sequencePower-down sequence Auto-parkStandby mode Active modeIdle mode Sleep modePower consumption Environmental specifications 1.13.1 Ambient temperatureInput noise Relative humidity Temperature gradientAltitude Shock and vibrationReliability Overall A-weighted Value IdleAcoustics Agency listingsElectromagnetic Compliance for the European Union FCC verificationPage Sicherheitsanleitung Configuring and mounting the drive Handling and static-discharge precautionsPart Description I/O cable and connectorPower connector Part Description Part numberConnectors Options jumper blockMaster/slave configuration Configuration SettingsAlternate capacity jumper Cable-select optionRemote LED connection Connecting cable-selected drives Mounting the driveMounting dimensions Medalist Pro 6450/6451 Product Manual, Rev. B ATA Interface connector pin assignments ATA InterfaceATA interface connector pin assignments Command set Command name Parameters usedCA, CB Identify drive command ECH Word Description ValueWord Description Value Word Description Value Set Features command EFH Feature ValuePIO and DMA Data-Transfer Modes Upper 5 bitsSector Count Register contents Corresponding timeout period Standby timer timeout periodSleep command 99H, E6H Automatic ReallocationSynchronous DMA Transfer Signal Line Definitions Signal Line Definitions New Definitions Old DefinitionsProtocol Rules Error Register Field/Bit DescriptionAppendix. Timing diagrams Time Description Min MaxProgrammed I/O timing with Iordy TKR Time Description Mode Sustained Synchronous DMA burstPage Page

6451, 6450 specifications

The Seagate 6450 and 6451 series represent a significant advancement in storage technology, designed specifically for high-performance computing demands. With an emphasis on reliability and speed, these models cater to enterprise-level applications, making them an ideal choice for data centers and organizations that require robust storage solutions.

One of the standout features of the Seagate 6450 and 6451 is their capacity. Both models provide extensive storage options, ranging from several terabytes to accommodate large data sets. This capability ensures that organizations can store vast amounts of information without the need for frequent upgrades, a crucial aspect for businesses that experience exponential data growth.

In terms of performance, the Seagate 6450 and 6451 series are built on cutting-edge SATA and SAS interfaces, providing exceptional data transfer speeds. This rapid throughput is essential for applications that require quick access to stored data, such as databases, virtualized environments, and enterprise applications. The drives offer improved IOPS (input/output operations per second), which enhances overall system responsiveness.

Reliability is another hallmark of the Seagate 6450 and 6451 series. With advanced error detection and correction technologies, these drives ensure data integrity, minimizing the risk of data loss. The series is also designed to operate continuously in high-demand environments, featuring robust construction and durability that meet the rigorous standards expected in enterprise settings.

Moreover, the energy efficiency of the Seagate 6450 and 6451 drives is noteworthy. They incorporate technologies that help reduce power consumption while maintaining performance. This is particularly important for organizations looking to reduce their carbon footprint and operational costs.

Additional features include comprehensive data security measures, such as built-in encryption support, which protects sensitive information from unauthorized access. These drives also come equipped with various management tools that facilitate monitoring and optimization of performance, making it easier for IT administrators to maintain their storage systems.

In summary, the Seagate 6450 and 6451 series are engineered to meet the evolving needs of the data-driven world. With impressive storage capacities, high-speed performance, steadfast reliability, and energy efficiency, they are invaluable assets for any enterprise aiming to maximize their data management capabilities.
Top Page Image Contents