[Beowulf] GPFS and failed metadata NSD

[Michael Di Domenico]

On Sun, May 21, 2017 at 9:37 PM, Christopher Samuel
<samuel at unimelb.edu.au> wrote:
> On 01/05/17 21:40, John Hearns wrote:
>
>> Also remember that pairs of disks probably came off the production line
>> as similar times. So this is probabyl a twins paradox!
>
> At my previous HPC gig we lost 2 drives in a RAID-5 array within a few
> minutes of each other. They were manufactured on the same day.

all of my contracts have a "part-randomization" clause in them to
ensure vendor's randomize the batches they pull parts from to build
the machines.  hopefully everyone else's does too... :)