Re:Google Cloud Downtime Postmortem
by mjevans on Thursday July 19, 2018 @06:29PM
(#17570897)
It's sort of like that extra disk in your raid 1 setup at home.
Compared to a single SSD the performance improvement doesn't really show (for desktop loads)...
However when things come to a rare (but somewhat inevitable) and screeching halt and that mirror has one of the copies shatter beyond recognition... that's when the doubled price proves that it was worth it.
Such a dashboard would invariably also add load and complexity (both failure points) to the system, but outwardly most users would be unaware of their existence.
Compared to a single SSD the performance improvement doesn't really show (for desktop loads)...
However when things come to a rare (but somewhat inevitable) and screeching halt and that mirror has one of the copies shatter beyond recognition... that's when the doubled price proves that it was worth it.
Such a dashboard would invariably also add load and complexity (both failure points) to the system, but outwardly most users would be unaware of their existence.