[AusNOG] [AUSNOG] Disk wear & Foucault Period

[Paul Wilkins]

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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