vohand at gmail.com
Sat May 14 07:48:48 PDT 2005
On 5/14/05, Pawel Jakub Dawidek <pjd at freebsd.org> wrote:
> On Sat, May 14, 2005 at 05:57:51PM +0400, Vladimir Dzhivsanoff wrote:
> +> > This is the way RAID1 works. Try to imagine how disk's heads are moving
> +> > there will be no speed-up in sequential reads, this is not RAID0.
> +> >
> +> > Mirror characteristics are:
> +> > - the same speed for sequential reads as for one disk;
> +> > - the same speed for sequential/random write as for one disk;
> +> > - double speed of one disk for random reads;
> +> by what test-suite I can test it ?
> +> and what balance algorithm is more proper for random reads ?
> There is my tool in ports (benchmarks/raidtest/) which does what you want.
> The README file wasn't moved to ports, IIRC, you can find it here:
big thanks, Pawel
> Pawel Jakub Dawidek http://www.wheel.pl
> pjd at FreeBSD.org http://www.FreeBSD.org
> FreeBSD committer Am I Evil? Yes, I Am!
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