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<div><font color="#1F497D">On a VM, when we go to create the drbd0 file system, mke2fs writes out a warning,47 blocks unused. Using tune2fs –l, both drbd0, and the physical device sda6, have a block count of 14909440 and a block size of 4096. From my
calculations below, it looks like drbd meta data has included the 47 unused blocks and the file system has not. I have never seen “<b>warning: 47 blocks unused” </b>message before. Not sure if it is related to the VM, the size of the partition. Does anyone
know what this warning is trying to tell me ? Any thought on why mke2fs would not use all the blocks ? No bad blocks were detected. When I calculate the size of the meta data, it seem to include the unused blocks, do you know if this is correct ? Do I
need to specify the number of blocks for this case, when creating the drbd device ? Any information would be greatly appreciated. </font></div>
<div><font color="#1F497D">/Chris</font></div>
<div><font color="#1F497D">Sonus Networks</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">ERROR:local drbd fs mismatch MetaData <b>59637948</b> sda6 <b>59637760</b> drbd0 <b>59637760</b></font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">Writing meta data...</font></div>
<div><font color="#1F497D">initializing activity log</font></div>
<div><font color="#1F497D">NOT initialized bitmap</font></div>
<div><font color="#1F497D">New drbd meta data block successfully created.</font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# sleep 1 </font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# /sbin/service drbd start </font></div>
<div><font color="#1F497D">[....] Starting DRBD resources:[ d(mirror) s(mirror) n(mirror) ]. ok </font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# /sbin/drbdadm -- --overwrite-data-of-peer primary mirror </font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# /sbin/mke2fs -j /dev/drbd0 | colcrt - 2> /tmp/cld.txt</font></div>
<div><font color="#1F497D">mke2fs 1.42.5 (29-Jul-2012)</font></div>
<div><font color="#1F497D"><b>warning: 47 blocks unused.</b></font></div>
<div><font color="#1F497D">Filesystem label=</font></div>
<div><font color="#1F497D">OS type: Linux</font></div>
<div><font color="#1F497D">Block size=4096 (log=2)</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">root@SUZUKA05 sonus]# cat /proc/partitions </font></div>
<div><font color="#1F497D">major minor #blocks name</font></div>
<div><font color="#1F497D"> 8 6 59639808 sda6</font></div>
<div><font color="#1F497D">147 0 59637948 drbd0</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# expr $((((14909440+47)*4096)/1024))</font></div>
<div><font color="#1F497D">59637948</font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# expr $((((14909440+0)*4096)/1024))</font></div>
<div><font color="#1F497D">59637760</font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# expr $((59637948-59637760))</font></div>
<div><font color="#1F497D">188</font></div>
<div><font color="#1F497D">[root@SUZUKA05 sonus]# expr $(((47*4096)/1024)) </font></div>
<div><font color="#1F497D">188</font></div>
<div><font color="#1F497D"> </font></div>
<div> </div>
<div> </div>
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