On 10 June, 2012 - Kalle Anka sent me these 1,5K bytes:

> Assume we have 100 disks in one zpool. Assume it takes 5 hours to
> scrub one disk. If I scrub the zpool, how long time will it take? 
> 
> 
> Will it scrub one disk at a time, so it will take 500 hours, i.e. in
> sequence, just serial? Or is it possible to run the scrub in parallel,
> so it takes 5h no matter how many disks?

It walks the filesystem/pool trees, so it's not just reading the disk
from track 0 to track 12345, but validates all possible copies.

/Tomas
-- 
Tomas Forsman, st...@acc.umu.se, http://www.acc.umu.se/~stric/
|- Student at Computing Science, University of UmeƄ
`- Sysadmin at {cs,acc}.umu.se
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