<div dir="ltr"><div><span style="font-family:tahoma,sans-serif">dear all，</span></div><div><span style="font-family:tahoma,sans-serif">I have a drbd cluster with two nodes: C21 and C22. Now I want to add a third node C23 into existing drbd cluster.</span></div><div><span style="font-family:tahoma,sans-serif">Here's how I did it：</span></div><div><span style="font-family:tahoma,sans-serif"><br></span></div><div><span style="font-family:tahoma,sans-serif">1. drbdadm down r0</span></div><div><span style="font-family:tahoma,sans-serif">2. drbdadm apply-al r0</span></div><div><span style="font-family:tahoma,sans-serif">3. drbdadm dump-md r0 > r0-md</span></div><div><span style="font-family:tahoma,sans-serif">4. edit the r0-md:
</span><pre><span style="font-family:tahoma,sans-serif"> 4.1 increased the number "max-peers" from 1 to 2.
4.2 add the bitmap at the end of the dump file<br></span></pre><pre style="margin-left:40px"><span style="font-family:tahoma,sans-serif"> bitmap[1] {
# at 0kB
4096 times 0x0000000000000000;
}<br></span></pre><pre><span style="font-family:tahoma,sans-serif">5. drbdmeta 0 v09 /dev/vg1/lv1 internal restore-md r0-md</span><br></pre><pre><span style="font-family:tahoma,sans-serif"></span></pre><pre><span style="font-family:tahoma,sans-serif">6. The first time I success, but second time report an error<br></span></pre><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><pre style="margin-left:40px"><span style="font-family:tahoma,sans-serif">reinitializing<br>md_offset 3221221376<br>al_offset 3221188608<br>bm_offset 3220992000<br><br>Found ext3 filesystem<br> 3145728 kB data area apparently used<br> 3145500 kB left usable by current configuration<br><br>Device size would be truncated, which<br>would corrupt data and result in<br>'access beyond end of device' errors.<br>You need to either<br> * use external meta data (recommended)<br> * shrink that filesystem first<br> * zero out the device (destroy the filesystem)<br>Operation refused.<br></span></pre></blockquote><pre><span style="font-family:tahoma,sans-serif">7. I extended /dev/vg1/lv1 from 1G to 2G. It is also reporting this error.
<br>How can I do it？</span>
</pre><pre><span style="font-family:tahoma,sans-serif">
Thanks
zhangyi.<br><br></span></pre><pre><span style="font-family:tahoma,sans-serif"></span></pre>
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