We have numerous unstable X7 clusters and have noticed they were deployed with all NIC's including Heatbeat NIC's set to Auto negotiate Speed and duplex. I see some older KB's suggesting this may cause instability. http://support.microsoft.com/kb/174812/ http://support.microsoft.com/kb/892422/en-us Could this be contributing to Cluster failovers and instability? Thanks
"Del" wrote in message news:eqy2kNmgIHA.1164@TK2MSFTNGP02.phx.gbl... > We have numerous unstable X7 clusters and have noticed they were deployed > with all NIC's including Heatbeat NIC's set to Auto negotiate Speed and > duplex. I see some older KB's suggesting this may cause instability. > > http://support.microsoft.com/kb/174812/ > http://support.microsoft.com/kb/892422/en-us > > Could this be contributing to Cluster failovers and instability? I have seen this as the source of problems in the past, and I highly recommend hard coding the speed and duplex settings for all NICs. -- Russ Kaufmann MVP - Windows Server - Clustering ClusterHelp.com, a Microsoft Certified Gold Partner Web http://www.clusterhelp.com Blog http://msmvps.com/clusterhelp The next ClusterHelp classes are: Mar 10- 13 in Denver May 12-15 in New York
Also ensure your Network and Cluster communication priorities have been set correctly on top of configuring fixed NIC speed and duplex. Oliver > I have seen this as the source of problems in the past, and I highly > recommend hard coding the speed and duplex settings for all NICs.
On Mon, 10 Mar 2008 00:32:38 -0600, "Russ Kaufmann [MVP]" wrote: >"Del" wrote in message >news:eqy2kNmgIHA.1164@TK2MSFTNGP02.phx.gbl... >> We have numerous unstable X7 clusters and have noticed they were deployed >> with all NIC's including Heatbeat NIC's set to Auto negotiate Speed and >> duplex. I see some older KB's suggesting this may cause instability. >> >> http://support.microsoft.com/kb/174812/ >> http://support.microsoft.com/kb/892422/en-us >> >> Could this be contributing to Cluster failovers and instability? > >I have seen this as the source of problems in the past, and I highly >recommend hard coding the speed and duplex settings for all NICs. Don't forget the possible issues with Windows 2003 Sp2 as well. http://msexchangeteam.com/archive/2007/07/18/446400.aspx
