gvinum mirror seems to use only one disk for reading

Lukas Ertl le at FreeBSD.org
Wed Mar 2 14:41:31 GMT 2005


On Wed, 2 Mar 2005, Deomid Ryabkov wrote:

> I have a gvinum-based mirrored setup and i noticed that only one disk gets 
> the load of read requests.

That's correct.  I'm currently about to implement round-robin reads.

> writes go to both drives as they should and tps numbers are the same, as 
> expected, but "time spent processing requests" is different for da0 and 
> da1.

I've no idea yet, why that happens.  Have you checked out gstat(8) and 
how the numbers compare there?

cheers,
le

-- 
Lukas Ertl                         http://homepage.univie.ac.at/l.ertl/
le at FreeBSD.org                     http://people.freebsd.org/~le/


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