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A comment on NVMe is not a hard disk. Parent comment

Re:NVMe is not a hard disk by lurkerasdfh8 on Friday June 11, 2021 @01:32PM (#27476194)
Even if the author assumptions are true and valid, this is like saying mirroring RAID is a safe backup option :)

it is not. if you have 10 DB hosts with the same brand of nvme, and they fail under a workload, what good is it that you have 10 hot-hot failover hosts? you just bought yourself a few days, or hours if you are specially unlucky and using consumer grade.

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Re:NVMe is not a hard disk by tyingq on Friday June 11, 2021 @01:35PM (#27476236)
Yep. Mirroring happily mirrors mistakes very well, and very quickly.
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Re:NVMe is not a hard disk by alisonkisk on Friday June 11, 2021 @01:46PM (#27476360)
Replication also replicates mistakes.
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Re:NVMe is not a hard disk by isotopp on Friday June 11, 2021 @03:08PM (#27477282)
Correct.

For that you have time delayed replicas and of course backups. But time delayed replicas are usually much faster to restore than a backup.

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