On <i>Tue Mar  2 02:56:52 UTC 2010 </i><b>Dennis J.</b> wrote:<br><pre>&gt; Would I maybe get away with 4 bonded gbit ethernet ports? Would I require fiber channel or 10gbit infrastructure?<br></pre>Sometimes ago I made some tests with F11+rawvirt 2-node cluster and drbd setup. Unfortunately now I have not in place the test infra used...<br>
My setup had a single gigabit nic card for replication.<br>But keep in mind that based on drbd mailing list threads feedbacks, when you use gigabit network cards, <font color="black" face="Verdana,Arial,Helvetica" size="2"><font color="black" face="Verdana,Arial,Helvetica" size="2">2 bonded NICs will provide *slightly* better performance than one, but three <br>
actually performs worse than a solitary NIC.<br>As a user (Ben) wrote, </font></font><font color="black" face="Verdana,Arial,Helvetica" size="2"><font color="black" face="Verdana,Arial,Helvetica" size="2">all of your data is transferred over a single TCP stream, packets arrive on the remote end out of order, requiring significant overhead to fix.</font></font><br>
<font color="black" face="Verdana,Arial,Helvetica" size="2"><font color="black" face="Verdana,Arial,Helvetica" size="2">So probably you can go with two different bond pairs and assign some resources to syncronize through bond0 and other ones through bond1.... or use 4 different networks (loosing some degree of high-availability...)<br>
<br>Gianluca </font></font><br><br>