<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Feb 26, 2016 at 10:10 AM, Eric Robinson <span dir="ltr"><<a href="mailto:eric.robinson@psmnv.com" target="_blank">eric.robinson@psmnv.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal"><span style="color:rgb(31,73,125)">> The usual problem with LVM on top of DRBD is that the
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<p class="MsoNormal"><span style="color:rgb(31,73,125)">> backing device gets seen as an LVM PV and is grabbed by
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<p class="MsoNormal"><span style="color:rgb(31,73,125)">> LVM before DRBD starts up. That means DRBD cannot access
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<p class="MsoNormal"><span style="color:rgb(31,73,125)">> it since it's already in use. Solution: adjust the filter
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<p class="MsoNormal"><span style="color:rgb(31,73,125)">> lines in lvm.conf to exclude the backing devices from
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<p class="MsoNormal"><span style="color:rgb(31,73,125)">> LVM consideration.</span><br>
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<span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u><u></u></span></p>
</span><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">You mean /dev/drbd0 and /dev/drbd1?<span class=""><font color="#888888"><u></u><u></u></font></span></span></p><span class=""><font color="#888888">
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">--Eric</span></p></font></span></div></div></blockquote><div><br><div>The instructions are here: <a href="https://drbd.linbit.com/users-guide/s-lvm-drbd-as-pv.html">https://drbd.linbit.com/users-guide/s-lvm-drbd-as-pv.html</a><br><br></div><div>Then in pacemaker, example from one of my clusters:<br></div><div><br>primitive p_lvm_vg1 LVM \<br> params volgrpname=vg1 \<br> op monitor interval=60 timeout=30 \<br> op start timeout=30 interval=0 \<br> op stop timeout=30 interval=0 \<br> meta target-role=Started<br>colocation c_vg1_on_drbd +inf: g_vg1 ms_drbd_vg1:Master<br>order o_drbd_before_vg1 +inf: ms_drbd_vg1:promote g_vg1:start<br><br></div><div>to tide them up and start the volume on the drbd master.<br><br></div><div>Hope this helps.<br><br></div>Igor <br></div></div><br></div></div>