[AusNOG] [AUSNOG] Disk wear & Foucault Period

[Mark Smith]

How is this related to network operation? AusNOG - Australian Network
Operators Group.

You wouldn't go to a car show to ask about motorbikes - you'd to to a
motorbike show, because that's where the most people interested in and
having the most knowledge about motorbikes would be.

On Wed, 21 Aug 2019 at 15:30, Roy Adams <roy at racs.com.au> wrote:

> 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:
> https://ex.racs.com.au:444/ | eMail: mailto:roy at racs.com.au
> <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
>>>
>>> _______________________________________________
>> AusNOG mailing list
>> AusNOG at lists.ausnog.net
>> http://lists.ausnog.net/mailman/listinfo/ausnog
>>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20190821/113587e5/attachment-0001.html>