Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Friday 15 August 2008 10:19:22 Wolfram Schlich wrote: > * Mark Watts <m.watts at eris.qinetiq.com> [2008-08-15 10:56]: > > On Friday 15 August 2008 09:46:32 Wolfram Schlich wrote: > > > * Mark Watts <m.watts at eris.qinetiq.com> [2008-08-15 09:51]: > > > > On Thursday 14 August 2008 23:04:47 Wolfram Schlich wrote: > > > > > [...] > > > > > What could be the reason for both issues (iowait > > > > > vs. load skyrocketing)? > > > > > > > > > > Thanks! > > > > > > > > If its like other Dell's, you should start by disabling the TCP > > > > Offload (TOE) by removing the hardware key on the motherboard. > > > > > > Interesting... could you possibly be a little more verbose? :) > > > > > > Thanks! > > > > 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. > Also, the PE860 has a BCM5721 NIC, which does not seem to support TOE. Ah well. Worth a shot. Mark. -- Mark Watts BSc RHCE MBCS Senior Systems Engineer QinetiQ Applied Technologies GPG Key: http://www.linux-corner.info/mwatts.gpg -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: This is a digitally signed message part. URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080815/aba87f3a/attachment.pgp>