HP ML150 running Windows 2008 with two NIC's

Posted on 2009-02-24
Medium Priority
Last Modified: 2012-05-06
I have a Hewlett Packard ML150 G5 running Windows 2008 hosting Hyper-V virtual servers.

The server has two network cards, the on board Broadcom and a Intel Pro, the cards are connected to separate LAN ports on a Draytek 3300 router, each setup with different static IP ranges, the router handling IP leases etc (for all intense and purse totally separate networks).

The onboard network card is used for the Windows 2008 operating system and some of the virtual machines, the Intel card is used for one Virtual Server.  The setup works perfectly, however once the Virtual Server on the second network card to put under high network use the server crashes.  All the lights on the server come on, and the screen goes black and there is no response to the server.  The only way to recover to to remove the power cable from the back of the server and reboot, the server logs simply indicate that the power was lost.  I.e. it is a complete hardware failure rather than a software issue.

The server is on the latest firmware and the network cards and all on the latest drivers.

Before trying a different network card would be interested to hear if anyone else has had similar issues?
Question by:Sub-Total
LVL 12

Expert Comment

ID: 23721711

Try to change Transmit and Received Buffer in Network Adapters.
Transmit Buffer size must be lower than Received Buffer size.
Transmit: 128
Receive: 192

If there is an option of Optimal Performance, disable it.
If there is a flow control, disable it.

Great is our GOD.

Accepted Solution

Sub-Total earned 0 total points
ID: 24092075
Replaced the Server and the Network card, problem solved.

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