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drbd wont allow the drbd device on the secondary drbd server to be
used. you'll probably get something like media errors back when you try
to mount or otherwise use the device. only the primary can be used. so
if you want to mount this on the secondary, you need to promote it to
primary (which will demote the current primary) and then mount the
volume. this will then mean the volume cant be mounted on the now old
primary.<br>
<br>
mike<br>
<br>
Alan Cowes wrote:
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Hello
Mike!,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Well let
me tell you… that
fixed the problem! But….. now the system doesn’t book properly, it
saids that the system can´t find /dev/drbd1, and that I have to set a
maintenance password or press Control-D to continue, if I do that, it
runs
good, I have also change the Fstab with noauto as follows:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">/dev/drbd1
/home
ext3 noauto 0 2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I don´t
have the DRBD2 set
there, do I really need to?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I only
set the Fstab on the
slave one, the master is with the md1, I guess I need to change them
too, but
not right now. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">If you
need the exact message,
let me know<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Thanks a
bunch!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Alan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif"; color: windowtext;"
lang="ES">De:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif"; color: windowtext;"
lang="ES"> Mike Lovell
[<a class="moz-txt-link-freetext" href="mailto:mike@dev-zero.net">mailto:mike@dev-zero.net</a>] <br>
<b>Enviado el:</b> martes, 23 de febrero de 2010 17:53<br>
<b>Para:</b> Alan Cowes<br>
<b>CC:</b> <a class="moz-txt-link-abbreviated" href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
<b>Asunto:</b> Re: [DRBD-user] DISKLESS Resource<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="ES"><o:p> </o:p></span></p>
<p class="MsoNormal">ummmm. yeah. something else is using the
underlying device.
it is mounted to /home. maybe lsof wont show the device if it is just
mounted.<br>
<br>
either way, you need to umount /home restart drbd so that drbd can
claim the
device, /dev/md1. you would then want to change your fstab to point
/home to
/dev/drbd1 instead of /dev/md1.<br>
<br>
mike<br>
<br>
Alan Cowes wrote: <o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Hello
Mike,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I´ve
checked the slave with a
lsoft | grep /home and nothing comes up, so that means that nothing is
using
that partition is that right?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I have a
line on the /etc/fstab
that includes the /home : </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">/dev/md1
/home
ext3 defaults
0 2</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">*********
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Also I
have tried this, I stopped
the DRBD and started again (on the slave only, the master is running)
and I got
this error:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Starting
DRBD
resources: [ d(HOME) /dev/drbd1: Failure: (114) Lower device
is already claimed. This usually means it is mounted.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">[HOME]
cmd /sbin/drbdsetup
/dev/drbd1 disk /dev/md1 /dev/sdc3 0 --set-defaults --create-device
--on-io-error=detach failed - continuing!</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">************
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Any Idea?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);" lang="ES"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Thanks a
lot for your response!</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Alan</span><o:p></o:p></p>
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