3 ms·
>I expect HDD to be slow The problem is how slow. 10MB/s sounds ok since it's faster than many home internet connections. But it's going to take you 3 weeks to
by AnotherGoodName 7y ago
>I expect HDD to be slow
The problem is how slow. 10MB/s sounds ok since it's faster than many home internet connections. But it's going to take you 3 weeks to re-build a 15TB drive in a raid array. Much longer again if the array is used at all (causing non-linear access as it has to rewrite changed blocks.)
https://news.ycombinator.com/item?id=15623937 https://news.ycombinator.com/item?id=15623937
- deelowe 7y agoAnd not knowing that rebuild time can cause you to incorrectly allocate physical drives to the array (based on AFR, size, and rebuild speeds). Changing the drive allocation for zfs requires destruction of the array.