Can you give us some more information on your SAN?
The UNIX test should be higher becasue it uses less overhead and makes
direct read and write calls.
In some ways you may be comparing apples and oranges becasue these
tests do not allow you to control IU size or how many concurrent I/O
operations (streams) are running.
Steve C.
On 2/10/06, Stephen Cortese <email@hidden> wrote:
> Can you give us some more information on your SAN?
>
> The UNIX test should be higher becasue it uses less overhead and makes
> direct read and write calls.
>
> In some ways you may be comparing apples and oranges becasue these
> tests do not allow you to control IU size or how many concurrent I/O
> operations (streams) are running.
>
> Steve C.
>
> On 2/10/06, Martin Greenwood <email@hidden> wrote:
> > I've recently added an XSan client with dual 2G FC to an ADIC San.
> > When I run the BlackMagic Disk Speed Test I get about 190M read and
> > 240M write.
> > However when I run the XSan Tuner I get about 320M read and write
> > with either the Unix test or the 2 HD FCP streams test.
> > Any idea why there is such a difference?
> > Is there anyone who can run the BlackMagic test on their XSan and
> > compare the figures?
> > The ADIC San should have a bandwidth of about 450M read, so it should
> > be able to saturate the FC and the XSan Tuner seem to show that this
> > is the case.
> >
> > Thanks,
> >
> > Martin
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