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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><a href="http://ha.cf">ha.cf</a><br>
<br>
#<span class=SpellE>use_logd</span> on<br>
<span class=SpellE>logfile</span> /<span class=SpellE>var</span>/log/ha-log<br>
<span class=SpellE>debugfile</span> /<span class=SpellE>var</span>/log/ha-debug<br>
<span class=SpellE>logfacility</span> local0<br>
<span class=SpellE>keepalive</span> 2<br>
<span class=SpellE>deadtime</span> 10<br>
<span class=SpellE>warntime</span> 3<br>
<span class=SpellE>initdead</span> 20<br>
<span class=SpellE>udpport</span> 694<br>
<span class=SpellE>ucast</span> eth0 172.20.1.1<br>
<span class=SpellE>ucast</span> eth0 172.20.2.1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'># using different subnets won’t make any difference. Install another <span
class=SpellE>nic</span> and use a crossover or us a serial cable. What you
experienced is by design to prevent <span class=SpellE>splitbrain</span> <br>
node xen-A1.fra1.mailcluster<br>
node xen-B1.fra1.mailcluster<br>
<span class=SpellE>auto_failback</span> on</span></font><font size=2
color=black face="Lucida Console"><span style='font-size:11.0pt;font-family:
"Lucida Console";mso-bidi-font-family:"Times New Roman";color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><a name="_MailEndCompose"><font size=2 color=black
face="Lucida Console"><span style='font-size:11.0pt;font-family:"Lucida Console";
mso-bidi-font-family:"Times New Roman";color:black'><o:p> </o:p></span></font></a></p>
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<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif";mso-fareast-font-family:"Times New Roman";
font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-font-family:
"Times New Roman"'> drbd-user-bounces@lists.linbit.com
[mailto:drbd-user-bounces@lists.linbit.com] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Heiko<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, July 03, 2009 09:01<br>
<b><span style='font-weight:bold'>To:</span></b> drbd-user@lists.linbit.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> [DRBD-user] switch was
down, all drbd machines rebootet<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hello,<br>
<br>
i had an earlier discussion here where we came to the conclusion that using
Protocol C can cause crashes.<br>
Yesterday we had problems with one of our switches and therefore the drbd
enabled machines couldnt see each other,<br>
than all the machines did reboots, created splitbrains and a lot of work.<br>
Do you think the crashes/reboots are caused by the same problem or can we
prevent this behavouir by optimizing our<br>
heartbeat drbd config? Ill attach a drbd config and the <a href="http://ha.cf">ha.cf</a><br>
<br>
---------------------------------<br>
drbd.conf<br>
<br>
common {<br>
protocol C;<br>
}<br>
<br>
<br>
<br>
resource drbd_backend {<br>
startup {<br>
degr-wfc-timeout 120; # 2 minutes.<br>
}<br>
disk {<br>
on-io-error detach;<br>
}<br>
net {<br>
}<br>
syncer {<br>
rate 500M;<br>
al-extents 257;<br>
}<br>
<br>
on xen-B1.fra1.mailcluster {<br>
device /dev/drbd0;<br>
disk /dev/md3;<br>
address <a href="http://172.20.2.1:7788">172.20.2.1:7788</a>;<br>
meta-disk internal;<br>
}<br>
on xen-A1.fra1.mailcluster {<br>
device /dev/drbd0;<br>
disk /dev/md3;<br>
address <a href="http://172.20.1.1:7788">172.20.1.1:7788</a>;<br>
meta-disk internal;<br>
}<br>
}<br>
<br>
---------------------------------------<br>
<a href="http://ha.cf">ha.cf</a><br>
<br>
#use_logd on<br>
logfile /var/log/ha-log<br>
debugfile /var/log/ha-debug<br>
logfacility local0<br>
keepalive 2<br>
deadtime 10<br>
warntime 3<br>
initdead 20<br>
udpport 694<br>
ucast eth0 172.20.1.1<br>
ucast eth0 172.20.2.1<br>
node xen-A1.fra1.mailcluster<br>
node xen-B1.fra1.mailcluster<br>
auto_failback on<br>
<br>
<br>
<br>
thnx a lot<br>
<br>
<br>
.r<o:p></o:p></span></font></p>
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