Hi All,
This is my first post on this forum. We have problems with connection between application server and sql server. Both servers are running Windows server 2008 R2 and are hosted on the same ESX. We are receiving below alerts on application log, it means that an existing connection was forcibly closed by the remote host. The problem was checked by network team, connection is working fine.
> STATE: 01000
> NATIVE CODE: 10054
> MESSAGE: [ImageNow][ODBC SQL Server Driver][DBNETLIB]ConnectionWrite (send()).
>
> STATE: 08S01
> NATIVE CODE: 11
> MESSAGE: [ImageNow][ODBC SQL Server Driver][DBNETLIB]General network error.
> Check your network documentation.
Vendor suggest to change the TCP Checksum offload. We changed the settings on Windows but the problem still exist. My question is... how to change the TCP Checksum offload on ESX 4.1 (I can't find any vmware documentation regarding that, except of forum posts), from your experience are there any disadventages from changing the settings? (other that higher CPU utilization) Can it impact other vm's?
I would be gratefull if you could provide some more details
Thanks
Mateusz