[DRBD-user] suffering from iowait

Wolfram Schlich lists at wolfram.schlich.org
Fri Aug 15 11:55:18 CEST 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


* Mark Watts <m.watts at eris.qinetiq.com> [2008-08-15 11:47]:
> On Friday 15 August 2008 10:19:22 Wolfram Schlich wrote:
> > * Mark Watts <m.watts at eris.qinetiq.com> [2008-08-15 10:56]:
> > > [...]
> > > Similar IO problems have been reported before (search the archives for
> > > TOE) and its been found that even if TCP Offload isn't enabled by the nic
> > > driver, the hardware key seems to enable it.
> > >
> > > If you pop the lid on the server, you should find (if you server has TOE)
> > > a little RJ11 dongle you can remove to fully disable TOE.
> > >
> > > I've done this on some 1950's and it solved my IO problems.
> >
> > Hmm: http://tinyurl.com/5nehl6 (a long dell.com URL)
> > --8<--
> > To disable the TCP Offloading Engine (TOE) capability of Broadcom network
> > adapters, TOE must be turned off in Broadcom advanced controller suite
> > (BACS) or at the command line. Removing the TOE key causes connectivity
> > failures because it is not the valid method of disabling TOE.
> > --8<--
> > Maybe it's only a problem under Windows ;)
> 
> Well, I (and probably others) have removed those keys with nothing but 
> positive effects.

Good to know!

> > Also, the PE860 has a BCM5721 NIC, which does not seem to support TOE.
> 
> Ah well. Worth a shot.

Yeah, thanks! :)
-- 
Regards,
Wolfram Schlich <wschlich at gentoo.org>
Gentoo Linux * http://dev.gentoo.org/~wschlich/



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