10401076-001
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RDX QuikStor Internal SATA III Device Reference Guide
2 Drive Specifications
Product Reliability
The predicted reliability of the Drive is expressed in two parts that will cover the expected random
Mean Time Between Failures (MTBF) for the electronics based on the Power On Hours (POH) and
the Mean Time to Failure (MTTF) for the mechanical parts based on the POH
and
the Duty Cycle.
Electronics and Media MTBF
Mechanics MTTF
The failure rate for these parts is related to how often the Drive is actually used. In the case of the
most critical components the reliability is specified as the Mean Time to Failure (MTTF) based on
the POH and the Duty Cycle. The MTTF-values are not accumulative as the wear takes place in
parallel.
Useful Life Cycle
This is the period during which the Drive is serviceable either by adjustment or replacement of
defective parts. In the case of the mechanical parts, replacements must be expected as soon as the
lifetime is approached. This will depend on the actual usage of the Drive. This is not the product
warranty period.
Electronics Type
Power On Hours
Predicted, Actual “Mature” Drive
Electronics MTBF
550 000 Hours
Predicted, Actual “Mature” Media
MTBF
Dependent on HDD specifications. Typically greater
than 550,000 Hours
Critical Component
Mean Time to Failure
The expected number of media insertions a Drive can
accept before the Drive connector fails.
> 10 000 load/ejects
The expected number of times a media can be inserted
before the media connector fails.
> 5 000 load/ejects
Feature
Useful Life
Useful Life Cycle
> 10 years
