The figure shows that failures
do not increase when the average temperature increases.
In fact, there is a clear trend showing that lower
temperatures are associated with higher failure rates.
In the
lower and middle temperature ranges, higher temperatures
are not associated with higher failure rates. This is
a fairly surprising result, which could indicate that datacenter
or server designers have more freedom than previously
thought when setting operating temperatures for
equipment that contains disk drives. We can conclude
that at moderate temperature ranges it is likely that there
are other effects which affect failure rates much more
strongly than temperatures do.