<html><body>
<p><font size="2" face="sans-serif">Greeting,</font><br>
<br>
<font size="2" face="sans-serif">Forgive me if this is the wrong spot to ask, because this involve pacemaker and DRBD, I'm not sure which direction to go for help.</font><br>
<font size="2" face="sans-serif">I have a 3 node cluster for running DRBD and VMs. All are Debian12. Two are "disk" nodes, the third is "diskless"</font><br>
<br>
<font size="2" face="sans-serif">Debian packs the old 8.x version of the DRBD kernel modules, so I compile the 9.2 branch modules from source.</font><br>
<br>
<font size="2" face="sans-serif">Here is my issue, which I'm sure someone else has run into before. If the kernel has been upgraded, and a node is rebooted, it tries coming up with the 8.x driver.</font><br>
<font size="2" face="sans-serif">This of course doesn't work with a 3 node DRBD cluster. The problem is that it wreaks havoc with the whole cluster and the VMs end up failing and are offline.</font><br>
<br>
<font size="2" face="sans-serif">I would hope that if the rebooted node was a "secondary", that the "primary" would be okay to continue with perhaps some error. However, that is not the case.</font><br>
<br>
<font size="2" face="sans-serif">I have gone so far as write a script that is called by cron on reboot to check for the version of the module and if it's 8.x it builds/installs the new module.</font><br>
<font size="2" face="sans-serif">But it appears that Pacemaker must come up before this process is done.</font><br>
<br>
<font size="2" face="sans-serif">Any help is appreciated.</font><br>
<br>
<font size="3" face="sans-serif"><b>Jay Fluharty</b></font><br>
<font size="2" face="sans-serif"><i>Network Analyst</i></font><br>
<font size="2" face="sans-serif">Wheeling-Nippon Steel Inc.</font><br>
<font size="2" face="sans-serif">PO Box 635</font><br>
<font size="2" face="sans-serif">Follansbee, WV 26037</font><br>
<font size="2" face="sans-serif">jayf@wheeling-nipponsteel.com</font><br>
<font size="2" face="sans-serif">1-304-527-4819</font></body></html>