Re: QLogic Linux failover/Load Balancing ER0000000020860

From: GrandMasterLee (masterlee@digitalroadkill.net)
Date: Sun Oct 06 2002 - 05:31:54 EST


On Sun, 2002-10-06 at 05:19, jbradford@dial.pipex.com wrote:
> > > Linux is not allowed to address LUNs out of sequence, so searching for
> > > further LUN numbers stops after 0, since 2 is the next one.
>
> That's not true:
>
> CONFIG_SCSI_REPORT_LUNS:
>
> If you want to build with SCSI REPORT LUNS support i the kernel, say Y here.
> The REPORT LUNS command is useful for devices (such as disk arrays) with large numbers of LUNs where the LUN values are not contiguous (sparse LUN).
> REPORT LUNS scanning is done only for SCSI-3 devices.

I believe my kernel has that configured. I will look when I wake. It's
530 am now, and I've been setting up my volumes for a while now. Just
about time to go to sleep, then wake up and install oracle. :)

> > > Is there a way to resolve this, either at the driver level, IMHO the
> > > place it *should* happen. At the storage level, the place that it could
> > > also happen, or in the Kernel?
>
> This is new in 2.5.x
>

I see. ATM I'm using 2.4.19, but would like to get to 2.4.20, because of
the TG3 fixes.

> John.
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