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.




Reply via email to