On Friday, 9 February 2024 15:48:45 GMT Wols Lists wrote: > ... And I'm not worried about a double failure - yes it could happen, > but ... > > Given that my brother's ex-employer was quite happily running a raid-6 > with maybe petabytes of data, over a double disk failure (until an > employee went into the data centre and said "what are those red > lights"), I don't think my 20TB of raid-5 is much :-)
[OT - anecdote] I used to work in power generation and transmission (CEGB, for those with long memories), in which every system was required to be fault tolerant - one fault at a time. As Wol says, that's fine until your one fault has appeared and not been noticed. Then another fault appears - and the reactor shuts down! Carpeting comes next... Oh, frabjous day! [/OT] -- Regards, Peter.