Spinpoint M8-DVR Disti Product Manual REV 2.0
3.7 Reliability Specifications
Table 3-7: Reliability
Specifications
DESCRIPTION
ST320LM001 ST500LM012 ST750LM022 ST1000LM024
Recoverable Read Error
<10 in 10
11
bits
Non-Recoverable Read Error
<1 sector in 10
14
bits
Annualized Failure Rate (AFR)
0.55%
Load/Unload Cycles
Ambient
600,000
3.8 Annualized Failure Rate (AFR)
The product will achieve an Annualized Failure Rate (AFR) of 0.55% when operated in an environment of ambient air
temperatures of 25°C. Operation at temperatures outside the specifications in Section 3.6, Environmental Specifications may
increase the product AFR.
AFR is a population statistics that is not relevant to individual units.
AFR specifications are based on the following assumptions for consumer electronics environments:
• 8760 power-on-hours per year
• 10,000 average motor start/stop cycles per year
• Operations at nominal voltages
• Temperatures outside the specifications in Section 3.6, Environmental Specifications may reduce the product
reliability.
• Normal I/O duty cycle for consumer electronics environments. Operation at excessive I/O duty cycle may degrade
product reliability.
The consumer electronics environment of power-on-hours, temperature, and I/O duty cycle affect the product AFR. The AFR
will be degraded if used in an enterprise application.
