Seagate ST1200MM0037 ユーザーズマニュアル

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EAGATE 

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NTERPRISE 

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ERFORMANCE 

10K HDD 

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7  P

RODUCT 

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ANUAL

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The reliability of Seagate Enterprise Performance 10K HDD disk drives can be enhance by ensuring that the drive receives 
adequate cooling. Section 6.0 provides temperature measurements and other information that may be used to enhance the 
service life of the drive. Section 10.2 provides recommended air-flow information.

The production disk drive shall achieve an AFR of 0.44% (MTBF of 2,000,000 hours) when operated in an environment that 
ensures the HDA case temperatures do not exceed the values specified in Section 6.5. Operation at case temperatures 
outside the specifications in Section 6.5 may increase the product AFR (decrease the MTBF). The AFR (MTBF) is a 
population statistic not relevant to individual units.

The AFR (MTBF) specification is based on the following assumptions for Enterprise Storage System environments:
• 8760 power-on hours per year.
• 250 average on/off cycles per year.
• Operations at nominal voltages.
• Systems will provide adequate cooling to ensure the case temperatures specified in Section 6.5 are not exceeded. Tem-

peratures outside the specifications in Section 6.5 will increase the product AFR and decrease the MTBF.

No routine scheduled preventive maintenance is required.

When a disk is powered on by switching the power or hot plugged, the drive runs a self test before attempting to 
communicate on its’ interfaces. When the self test completes successfully, the drive initiates a Link Reset starting with OOB. 
An attached device should respond to the link reset. If the link reset attempt fails, or any time the drive looses sync, the drive 
initiated link reset. The drive will initiate link reset once per second but alternates between port A and B. Therefore each port 
will attempt a link reset once per 2 seconds assuming both ports are out of sync.

If the self-test fails, the drive does not respond to link reset on the failing port.

It is the responsibility of the systems integrator to assure that no temperature, energy, voltage hazard, or ESD 
potential hazard is presented during the hot connect/disconnect operation. Discharge the static electricity from 
the drive carrier prior to inserting it into the system.

The drive motor must come to a complete stop prior to changing the plane of operation. This time is required to 
insure data integrity.

S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended to recognize 
conditions that indicate imminent drive failure and is designed to provide sufficient warning of a failure to allow an application 
to back up the data before an actual failure occurs.

The drive’s firmware monitors specific attributes for degradation over time but can’t predict instantaneous drive 
failures.

Each monitored attribute has been selected to monitor a specific set of failure conditions in the operating performance of the 
drive and the thresholds are optimized to minimize “false” and “failed” predictions.

The operating mode of S.M.A.R.T. is controlled by the DEXCPT and PERF bits on the Informational Exceptions Control 
mode page (1Ch). Use the DEXCPT bit to enable or disable the S.M.A.R.T. feature. Setting the DEXCPT bit disables all 
S.M.A.R.T. functions. When enabled, S.M.A.R.T. collects on-line data as the drive performs normal read and write 
operations. When the PERF bit is set, the drive is considered to be in “On-line Mode Only” and will not perform off-line 
functions.