re-adding a replacement into a pool of mirrors

[Andrew Snow]

Randy Bush wrote:
> a drive in a 12x2tb array died and i have replaced it

>     # zpool add -fn tank da1s3
>
> 
> so zpool add would put it in the wrong place
> 

Two things to try:

1. zpool replace -f tank da1s3

2. zpool offline tank da1s3 ; zpool online tank da1s3