[AusNOG] [AUSNOG] Disk wear & Foucault Period

[Roy Adams]

Paul, I would be most interested if you hear back from them.

I am curious if even BackBlaze have considered your idea in the past..
maybe a wake up for them and others

FYI, they produce these reports each quarter - worth calendaring to pick up.
I was stunned at the 14TB Toshiba reliability... interestingly, 2 weeks ago
that top line read 0 failures... today it says 1 - v.strange


Kindly,

ROY ADAMS* | *P 07 3040 5010  | Web: http://www.racs.com.au/ | Wiki:
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<roy at racs.com.au>
Please never upgrade to the latest Windows 10 - You don’t need the hassle,
and I don’t need the work.
More seriously, the 6 month older Windows 10 releases are typically FAR
MORE stable - a simple RACS script can fix this - just ask :)
If you think it's expensive to hire a professional to do the job, wait
until you hire an amateur - Red Adair.
Life is a journey through a series of adventures.. Live them, love them,
hate them, but never give up on your dreams, desires, and goals.
Have you been good today? .ಠ_ಠ


On Wed, 21 Aug 2019 at 11:22, Paul Wilkins <paulwilkins369 at gmail.com> wrote:

> Roy,
> Those are the most comprehensive disk stats I've ever seen.
>
> So out of curiosity, I emailed Backblaze to ask if they'd noticed any
> latitudinal effect on disk wear. Not realistically expecting a response,
> but if they did notice a correlation, it may perhaps emerge by osmosis.
>
> Karl, I have to think turning a 15K RPM on it's head over a, admittedly
> long period, has to have an effect. Cumulatively you're going to get uneven
> wear on the bearings. Also the wear is going to be strongly non linear.
> Even if it's not a factor today due to current production tolerances and
> HVAC, it must become a factor eventually, though maybe not necessarily in
> our lifetime.
>
> Kind regards
>
> Paul Wilkins
>
> On Tue, 20 Aug 2019 at 19:59, Peter Betyounan <
> peter.betyounan at serversaustralia.com.au> wrote:
>
>> Easy solution , move to all flash, predicable failures and wear.
>>
>> Tue, 20 Aug at 4:07 pm, <paulwilkins369 at gmail.com> wrote:
>>
>> Has anyone ever noticed a pattern of disks in equatorial latitudes
>> lasting significantly longer than say Sydney or Melbourne? I notice the
>> Foucault Period for Brisbane is 52hrs vs Melbourne's 39hrs and can't but
>> wonder if this doesn't mean Brisbane based DCs will have their disks last
>> 30% longer, or Darwin x3.
>>
>>
>> Kind regards
>>
>> Paul Wilkins
>>
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