Help, my disk array has one dead member

Karl Auer kauer at biplane.com.au
Sun Mar 26 09:02:29 UTC 2017


On Sun, 2017-03-26 at 09:47 +0200, Xen wrote:
>http://www.zdnet.com/article/why-raid-5-stops-working-in-2009/
> What he says is that with high capacity drives there is a high 
> likelihood of a unrecoverable error while reconstructing a failed
> drive.

Yes. But I was not holding him up as being a good source, just as a
starting point for the discussion, because it was quite an influential
article, and started a LOT of discussion about the best RAID
configurations and so on. As you point out, he is slightly confused
about how probability works.

The point I was trying to make is that in any sufficiently large
collection of data, failure becomes a statistical certainty. RAID is
one approach to that.

You asked, remember :-)

I want a chance to fix things without everything stopping while I do -
and that is what RAID offers.

Regards, K.

-- 
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Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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