Subj : Re: Is there a test suite for Pi2/armv7 ?
To   : Ahem A Rivet's Shot
From : druck
Date : Sun Jul 21 2024 21:28:27

On 21/07/2024 11:47, Ahem A Rivet's Shot wrote:
> On Sun, 21 Jul 2024 10:44:03 +0100
> The Natural Philosopher <tnp@invalid.invalid> wrote:
>
>> Oh indeed. My new server will feature two SMART enabled SSDs...one a
>> mirror of the other.
>> I am not interested in RAID. RAID increases availability, but does not
>> archive data
>
> 	You have a mirror - that's RAID. RAID is about smoothly surviving
> drive failures. With any storage system there are two important factors -
> mean time to data loss and probability of data unavailability.

Ignoring whether its RAID or not, mirroring will protect you against a
random failure of one of the drives, which was more useful in the
spinning rust days when random mechanical failures were an issue.

With SSD, write life is the main issue, and if you have two identical
mirrored drives, you may find any write life issues, which are not
random, occur at exactly the same time.

So with any type of mirrored arrangement, make sure they are different
makes or models of drive, so it is less likely they fail together.

---druck

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