On Fri, Apr 12, 2013 at 12:20:12PM +1000, Trent W. Buck wrote: > Craig Sanders <[email protected]> writes: > > > e.g. a typical quoted rating of 1 error per 10^14 bits is one error per > > 12 terabytes - i.e. your four x 3TB array is guaranteed to have at least > > one error in the data. > > I think more formally you'd say something like "the probability of no > data errors over 12TB is not statistically significant" or something.
umm, yes. that's much better. > The way you're phrasing it seems prone to misinterpretation, like saying > if 25% of the global population is Chinese, then if I have four kids one > of them is GUARANTEED to be Chinese. so? you got a problem with that? damn all racist maths-haters :) > > one error in 10^14 bits is nothing to worry about with 500GB drives. > > it's starting to get worrisome with 1 and 2TB drives. It's a guaranteed > > error with 10+TB arrays....and even a single 3 or 4TB drive has roughly > > a 30-50% chance of having at least one data error. > > ^ that reads better. true. craig -- craig sanders <[email protected]> BOFH excuse #246: It must have been the lightning storm we had (yesterday) (last week) (last month) _______________________________________________ luv-main mailing list [email protected] http://lists.luv.asn.au/listinfo/luv-main
