Re:Hard disc test surprises Google
by charliehotel on Friday March 23, 2007 @08:58PM
(#6030)
the analysis in this paper is problematic.
the main problem is that the authors didn't look at the data by disk model and manufacturing lot. ideally you should remove drives with known problems from the population.
known problems? yes. there aren't any truly horrible drives out there, but there is he occasional bad bunch. a three point or more difference in afr between "good" drives and a bad bunch is typical.
disclosure: i reviewed this paper for the FAST program committee.
the main problem is that the authors didn't look at the data by disk model and manufacturing lot. ideally you should remove drives with known problems from the population.
known problems? yes. there aren't any truly horrible drives out there, but there is he occasional bad bunch. a three point or more difference in afr between "good" drives and a bad bunch is typical.
disclosure: i reviewed this paper for the FAST program committee.