Re: Performance difference between two raid0 arrays on same drives?

[Michel Bellais <michel@ket.kth.se>]

I have done it with zcat!
The transfer rate decreases steadily from the beginning of the disk to the 
end. It doesn't look linear, but more like a square root..
The loss is about 50% at the end of the disk compared to the beginning.

The test shows that the decrease in performance is negligible in the first 10% 
of the disk, where the raid arrrays are.
So i have really no clue about this performance loss.

Thanks for the tip! It was interesting to test this drive.
Michel Bellais

>
> You can test the performance across your drives with the program zcav
> (which should come with bonnie++ - if not, take a look at
> http://www.coker.com.au/bonnie++/)
>
>--
>Mads Peter Bach
>Systemadministrator,  Det Humanistiske Fakultet, Aalborg Universitet
>Kroghstræde 3 - 5.111, DK-9220 Aalborg Øst - (+45) 96358062
># whois MPB1-DK@whois.dk-hostmaster.dk

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