<div dir="ltr"><div><div><div><div><div><div><div><div>Hello List,<br><br></div>i am running Debian 6 (2.6.32-5-xen-amd64) with DRBD 8.3.7<br><br></div>I know - i should upgrade now - or better => Yesterday :)<br><br></div>
I will, and i already did pre tests. However we currently have a performance problem with one of our production servers.<br><br></div>They are connected with a intel GBit Nic. iperf schows 916 Mbits/sec in both directions.<br>
</div>I have got SSDs on both sides. So I/O is not a problem.<br><br></div>I only get a sync speed: 56,036 (53,756) K/sec<br><br><br></div>Here is my config:<br>=================<br><br>global { usage-count yes; }<br>
<br>common { syncer { rate 200M; } }<br><br><br>resource foobar-live-lvm {<br><br> protocol A;<br><br> startup {<br> wfc-timeout 0; ## 2 min<br> degr-wfc-timeout 0; ## wait forever.<br>
}<br><br> disk {<br> on-io-error detach;<br> }<br><br> net {<br> #allow-two-primaries;<br> after-sb-0pri discard-zero-changes;<br> after-sb-1pri discard-secondary;<br>
<br> timeout 60;<br> connect-int 10;<br> ping-int 10;<br> max-buffers 2048;<br> max-epoch-size 2048;<br> }<br><br><br> on host-1 {<br>
address <a href="http://11.200.0.1:7791">11.200.0.1:7791</a>;<br> device /dev/drbd1;<br> disk /dev/vg/foobar-live-lvm;<br> meta-disk /dev/vg/meta-foobar-live-lvm[0];<br>
}<br><br> on host-2 {<br> address <a href="http://11.200.0.2:7791">11.200.0.2:7791</a>;<br> device /dev/drbd1;<br> disk /dev/vg/foobar-live-lvm;<br> meta-disk /dev/vg/meta-foobar-live-lvm[0];<br>
}<br>}<br><br><br><br></div>Any Idea why my sync speed is that slow?<br><br>Thanks,<br>Mario<br></div>