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SubjectRe: [dm-devel] RAID4 with no striping mode request
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On 15/02/2023 11:44, Roger Heflin wrote:
> WOL: current SSD's are rated for around 1000-2000 writes. So a 1Tb
> disk can sustain 1000-2000TB of total writes. And writes to
> filesystem blocks would get re-written more often than data blocks.
> How well it would work would depend on how often the data is deleted
> and re-written.

When did that guy do that study of SSDs? Basically hammered them to
death 24/7? I think it took about three years of continuous write/erase
cycles to destroy them.

Given that most drives are obsolete long before they've had three years
of writes ... the conclusion was that - for the same write load -
"modern" (as they were several years ago) SSDs would probably outlast
mechanical drives for the same workload.

(Cheap SD cards, on the other hand ...)

Cheers,
Wol

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