Has anyone seen any problems with Exchange 2003 Cluster (A/A/P) failing over when TOE is enabled? Dell told me that it is Best Practice to ensure TOE is disabled on Exchange, Cluster and SQL servers. -Kevin
Not seen any failover issues in particular - assuming the server's on Windows Server 2003 SP2. Also take a look at KB 936594 - I would make sure the hotfix is installed and particular NICs (w/TOE enabled) tested adequately on a cluster in a lab. -- Bharat Suneja MVP - Exchange www.zenprise.com NEW blog location: exchangepedia.com/blog ---------------------------------------------- "BHarley99" wrote in message news:uUUuSoBGIHA.3376@TK2MSFTNGP03.phx.gbl... > Has anyone seen any problems with Exchange 2003 Cluster (A/A/P) failing > over when TOE is enabled? > > Dell told me that it is Best Practice to ensure TOE is disabled on > Exchange, Cluster and SQL servers. > > > -Kevin >
What are you using iSCSI for? If its your Exchange/SQL data how can the cluster function without it? It is always a great idea to separate traffic and TOE also offload the SCSI commands. Cheers, Rodney R. Fournier MVP - Windows Server - Clustering http://www.nw-america.com - Clustering Website http://msmvps.com/clustering - Blog http://www.clusterhelp.com - Cluster Training ClusterHelp.com is a Microsoft Certified Gold Partner "BHarley99" wrote in message news:uUUuSoBGIHA.3376@TK2MSFTNGP03.phx.gbl... > Has anyone seen any problems with Exchange 2003 Cluster (A/A/P) failing > over when TOE is enabled? > > Dell told me that it is Best Practice to ensure TOE is disabled on > Exchange, Cluster and SQL servers. > > > -Kevin >
We are not using iSCSI...these are setup using fiber connected SAN. Any other ideas? "Rodney R. Fournier [MVP]" wrote in message news:64C8476C-F3E3-487A-BAB9-C1B5BED8B202@microsoft.com... > What are you using iSCSI for? If its your Exchange/SQL data how can the > cluster function without it? It is always a great idea to separate traffic > and TOE also offload the SCSI commands. > > Cheers, > > Rodney R. Fournier > MVP - Windows Server - Clustering > http://www.nw-america.com - Clustering Website > http://msmvps.com/clustering - Blog > http://www.clusterhelp.com - Cluster Training > ClusterHelp.com is a Microsoft Certified Gold Partner > > > "BHarley99" wrote in message > news:uUUuSoBGIHA.3376@TK2MSFTNGP03.phx.gbl... >> Has anyone seen any problems with Exchange 2003 Cluster (A/A/P) failing >> over when TOE is enabled? >> >> Dell told me that it is Best Practice to ensure TOE is disabled on >> Exchange, Cluster and SQL servers. >> >> >> -Kevin >> >
We are running SP2 for the OS and it doesn't appear that this patch has been applied. What I've done so far os disabled the chimney process: netsh int ip set chimney DISABLED I had also downloaded the latest Dell NIC drivers. Discussing this with the Dell tech, they said that we should never run TOE on an Exchange system. So running a netstat -t prior to disabling chimney you can see all the processes were using the resources of the NIC and after disabling it and running netstat -t you can now see that the processes are InHost. Unless there are more thoughts and recommendations, I'll wait to see if it happens again - normally it would happen 1 or twice a week. If it happens again - we'll apply the patch to see if that helps. Otherwise Dell told me that there is a TOE key that needs to be removed from inside the server. That is the only other thing I can think of. "Bharat Suneja [MVP]" wrote in message news:OPCRreMGIHA.5980@TK2MSFTNGP04.phx.gbl... > Not seen any failover issues in particular - assuming the server's on > Windows Server 2003 SP2. > > Also take a look at KB 936594 - I would make sure the hotfix is installed > and particular NICs (w/TOE enabled) tested adequately on a cluster in a > lab. > > -- > Bharat Suneja > MVP - Exchange > www.zenprise.com > NEW blog location: > exchangepedia.com/blog > ---------------------------------------------- > > > "BHarley99" wrote in message > news:uUUuSoBGIHA.3376@TK2MSFTNGP03.phx.gbl... >> Has anyone seen any problems with Exchange 2003 Cluster (A/A/P) failing >> over when TOE is enabled? >> >> Dell told me that it is Best Practice to ensure TOE is disabled on >> Exchange, Cluster and SQL servers. >> >> >> -Kevin >> > >
