> Well...
>
> If you don't care about security, you can use a RAM DISK, or even read
> /dev/rand :)
>

no i take care about the security, but here the question was to know in "speed" not un reliability the difference between a raid 0 and a raid 1. is it really twice more faster and in this way really usefull to use it (but in this way the data will need to be backuped or mirrored all the time)

stephane