Subj : Re: Is there a test suite for Pi2/armv7 ?
To   : Lawrence D'Oliveiro
From : David Higton
Date : Thu Jul 25 2024 20:20:38

In message <v7s77k$1v8pi$3@dont-email.me>
          Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

> On Wed, 24 Jul 2024 21:35:02 +0100, druck wrote:
>
> > On 24/07/2024 01:34, Lawrence D'Oliveiro wrote:
> >
> > > Companies whose business it is to ensure data integrity do not rely on
> > > SMART.
> >
> > No, they use hardware RAID for redundancy, extensive performance
> > monitoring, and retire most disks before they fail based on the small
> > percentage of failures of thousands of other discs of the same type.
>
> Actually, no. They wait until the disks actually fail before replacing
> them.

Anyone with any sense would replace them before the bathtub failure curve
starts to rise, which is usually not long after the end of the warranty
period.

> > But that's not what the typical person with a Raspberry Pi and a couple
> > of discs is able to do. The SMART information gives valuable warning of
> > potential failures, to ignore it would be to employ the STUPID feature of
> > the user.
>
> Unfortunately, SMART only catches about 30% of potential failures. That's
> why relying on it is not smart.

It's smarter than catching 0% of potential failures by waiting until they
have already happened.

David

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