<div>Yes, you have answered some of the important info like:</div>
<div> - dual primary?</div>
<div> - who manages DRBD resources roles?</div>
<div><br>Next, it would be good to know if you use any fencing mechanism (STONITH, DOPD). Did you check the fencing parameter value "resource-and-stonith" do<span class="term">? Is it not your case?</span></div>
<div><span class="term">If this is not your case, you have to provide log files of the standby note being frozen. I don't know drbd-vbd script. Where it comes from and what it does?</span></div>
<div><span class="term"></span> </div>
<div><span class="term">It would also be better if you include output of:</span></div>
<div><span class="term">drbdsetup /dev/drbdX show</span></div>
<div><span class="term"></span> </div>
<div><span class="term">Tino</span></div>
<div><span class="term"></span> </div>
<div class="gmail_quote">2009/4/24 Isaac González <span dir="ltr"><<a href="mailto:igonzalez@es.clara.net">igonzalez@es.clara.net</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">No, we are using single-primary mode, there are only one primary<br>resource at time, this is controlled by the drbd-vbd helper script.<br>
Isn't a split brain problem.<br><br>What kind of info do you need?<br><br>Thanks.<br><br>Maros Timko escribió:<br>
<div class="im">> You did not provided much details on it, but try to look at the<br>> "|fencing|" parameter on:<br>> <a href="http://www.drbd.org/users-guide-emb/re-drbdconf.html" target="_blank">http://www.drbd.org/users-guide-emb/re-drbdconf.html</a><br>
><br>> BTW, are you using dual-primary mode?<br>><br>> With regards,<br>><br>> Tino<br>><br>> 2009/4/24 Isaac González <<a href="mailto:igonzalez@es.clara.net">igonzalez@es.clara.net</a><br></div>
> <mailto:<a href="mailto:igonzalez@es.clara.net">igonzalez@es.clara.net</a>>><br>
<div class="im">><br>> Hi all,<br>><br>> I've a production system with this setup.<br>><br>> 2 Xen servers in HA sharing DRBD resources.<br>><br>> DRBD resources are over LVM's.<br>
><br>> DomU's are firewalls with differents VLAN's for each one. (There<br>> are not<br>> I/O problems because I've not much read/write proccesses).<br>><br>> The DRBD setup is for each domU (we've 16 vm):<br>
><br>> 1 DomU<br>> 1 - DRBD for base system (5GB)<br>> 1 - DRBD resource for swap (512M)<br>><br>> We use a different port for each resource, and physical server are<br>> connected through crossover 10gigabit wire. (not bandwidth problem)<br>
><br>> For example:<br>><br>> resource VM1 {<br>> on M1 {<br>> device /dev/drbd38;<br>> disk /dev/vg00/VM1;<br>> meta-disk internal;<br></div>> address <a href="http://10.0.0.1:7827/" target="_blank">10.0.0.1:7827</a> <<a href="http://10.0.0.1:7827/" target="_blank">http://10.0.0.1:7827/</a>>;<br>
<div class="im">> }<br>><br>> on M2 {<br>> device /dev/drbd38;<br>> disk /dev/vg00/VM1;<br>> meta-disk internal;<br></div>> address <a href="http://10.0.0.2:7827/" target="_blank">10.0.0.2:7827</a> <<a href="http://10.0.0.2:7827/" target="_blank">http://10.0.0.2:7827/</a>>;<br>
<div class="im">> }<br>> }<br>><br>> resource M1-swap {<br>> on M1 {<br>> device /dev/drbd39;<br>> disk /dev/vg00/VM1-swap;<br>> meta-disk internal;<br>
</div>> address <a href="http://10.0.0.1:7828/" target="_blank">10.0.0.1:7828</a> <<a href="http://10.0.0.1:7828/" target="_blank">http://10.0.0.1:7828/</a>>;<br>
<div class="im">> }<br>><br>> on M2 {<br>> device /dev/drbd39;<br>> disk /dev/vg00/VM1-swap;<br>> meta-disk internal;<br></div>> address <a href="http://10.0.0.2:7828/" target="_blank">10.0.0.2:7828</a> <<a href="http://10.0.0.2:7828/" target="_blank">http://10.0.0.2:7828/</a>>;<br>
<div class="im">> }<br>> }<br>><br>> THE PROBLEM.<br>><br>> If I do a "reboot" on the domU, the DRDB resource freezes and domU<br>> doesn't boot.<br>> Then I've to kill the Xen proccess that are using drbd's resources of<br>
> this domU, set the drbd resource as secondary and start the domU<br>> again.<br>> We'use the drbd helper script to manage drbd resources on xen.<br>><br>> Some idea?<br>><br>> Thanks in advance<br>
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