Re: [PERFORM] Arguments Pro/Contra Software Raid

Markus Schaber wrote:
> Hi, Scott & all,
>
> Scott Lamb wrote:
>
> > I don't know the answer to this question, but have you seen this tool?
> >
> > http://brad.livejournal.com/2116715.html
>
> We had a simpler tool inhouse, which wrote a file byte-for-byte, and
> called fsync() after every byte.
>
> If the number of fsyncs/min is higher than your rotations per minute
> value of your disks, they must be lying.
>
> It does not find as much liers as the script above, but it is less

Why does it find fewer liers?

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> intrusive (can be ran on every low-io machine without crashing it), and
> it found some liers in-house (some notebook disks, one external
> USB/FireWire to IDE case, and an older linux cryptoloop implementations,
> IIRC).
>
> If you're interested, I can dig for the C source...
>
> HTH,
> Markus
>
>
>
>
> --
> Markus Schaber | Logical Tracking&Tracing International AG
> Dipl. Inf. | Software Development GIS
>
> Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org
>
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