[Lustre-discuss] lctl peer/conn_list

[Scott Atchley]

On Jun 26, 2008, at 1:28 AM, Andreas Dilger wrote:

> On Jun 25, 2008  20:04 -0400, Scott Atchley wrote:
>> When I test Lustre over myri10ge, I do not use "myri10ge" as the
>> network interface name. I use the actual ethX that myri10ge is
>> providing:
>>
>>    options lnet networks="tcp0(eth2),tcp1(eth0)"
>
> If you are using tcpX(ethX), then you are only using TCP for the
> Lustre Network transport instead of the RDMA MX transport and it
> isn't as fast or efficient as it could be.

Andreas,

It depends if the NIC on the other end is a Myricom NIC or not. If it  
is a Myricom 10G NIC, then he can run MX. If the switch fabric is  
Ethernet, however, it depends on the switches as to whether they can  
handle MX over Ethernet (MXoE require flow control on and jumbo frames).

If the other NIC is _not_ a Myricom NIC, then using our standard  
Ethernet driver and SOCKLND on top is the easiest route.

Scott