4 ms·
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 sa
by lurkerasdfh8 5y ago
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.
- tyingq 5y agoYep. Mirroring happily mirrors mistakes very well, and very quickly.
- alisonkisk 5y agoReplication also replicates mistakes.
- isotopp 5y agoCorrect. For that you have time delayed replicas and of course backups. But time delayed replicas are usually much faster to restore than a backup.