Comment by rleigh
6 years ago
> what? no. why would that be the case? You lose a single disk's performance due to the checksumming.
I think they are probably referring to the write performance of a RAIDZ VDEV being constrained by the performance of the slowest disc within the VDEV.
true, if you have 7 fast disks and one slow disk in a raidz, you get 7 x slow disk performance.