hello alexander,
[EMAIL PROTECTED] wrote:
>
> Hello Goetz,
>
> >
> > I´ve already found out that two hostadapter drivers exist: one in the
> > standardkernel (qlogicfc.o) and one from qlogic. Does anyone knows which
> > one to prefer? Will the Qlogic-driver work with 2.2.18?
> >
>
> Both the standard driver and the Qlogic one should work with 2.2.18.
>
ok, we have decided that we go with the qlogic (qla2 so-and-so).
> >
> > Ok, here is my confusion: the hostadapter is redundant and therefore got
> > two controllers (channels?), both connecting via fc to the RAID
> > controller/array. When the array is, for example, configured as two
> > logical drives, the kernelmodul reports 4 devices (/dev/sdc, /dev/sdd,
> > /dev/sde, /dev/sdf), from which only two are usable. Is that "normal"
> > behavior? What happens in the case of a controller-failure?
> >
>
> At the moment you have 2 choices:
> 1. configure the FastT500 controller to be non-redundant. You loose the
> high-availability features.
hm, "configuring to be non-redundant" in this case means we leave all
like it is? (module finds two /dev/sdx for each configured logical
volume, with only one "usable"). or should we disconnect the second
FAStT500 hostadapter-channel?
> 2. Use a multipath failover driver. For my knowledge there is only one
> available for Linux (and only for 2.2.x kernels), originally written
> by Linucare for Sun T3 arrays and now GPL'ed. See
> http://open-projects.linuxcare.com/t3/index.html
> for details and source. It does work for other storage systems as well.
i´m afraid that would stress my braveness _way_ to much, especially
regarding a productive erp-environment. ;-)
anyway, do you have any experience with this driver?
> Please share your experience with us in return ...
i´ll be happy to do so.
regards,
goetz
--
Goetz Rieger Phone: +49 2241 92917-39
SuSE Linux Solutions AG Fax: 314599
Geschaeftsstelle Rhein-Ruhr
Address: Marie-Curie-Str. 11-17, D-53757 St. Augustin
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