[Beowulf] GPFS and failed metadata NSD

John Hearns hearnsj at googlemail.com
Mon May 1 04:40:07 PDT 2017


Also remember that pairs of disks probably came off the production line as
similar times.
So this is probabyl a twins paradox!

I think we all know that disks age together, and if this is an old age
failure then the chances of two going wrong at the same time ar ehigher.


On 1 May 2017 at 09:20, Tim Cutts <tjrc at sanger.ac.uk> wrote:

> Oh ... The birthday paradox as applied to disk failures. That had never
> occurred to me before, but it should have done!
>
> Tim
>
> Sent from my iPhone
>
> > On 29 Apr 2017, at 3:36 pm, Peter St. John <peter.st.john at gmail.com>
> wrote:
> >
> > just a friendly reminder that while the probability of a particular
> coincidence might be very low, the probability that there will be **some**
> coincidence is very high.
>
>
> --
>  The Wellcome Trust Sanger Institute is operated by Genome Research
>  Limited, a charity registered in England with number 1021457 and a
>  company registered in England with number 2742969, whose registered
>  office is 215 Euston Road, London, NW1 2BE.
> _______________________________________________
> Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
> To change your subscription (digest mode or unsubscribe) visit
> http://www.beowulf.org/mailman/listinfo/beowulf
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.beowulf.org/pipermail/beowulf/attachments/20170501/e53e9dd0/attachment.html>


More information about the Beowulf mailing list