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<p class=MsoNormal>Separate subject, but with a software RAID that large, a few
things:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>If you even need a rebuild, it will take FOREVER. Make sure
to turn on write intent bitmapping: <span class=apple-style-span><span
style='font-size:7.5pt;font-family:"-webkit-monospace","serif";color:black'>mdadm
-G /dev/mdx -b internal<o:p></o:p></span></span></p>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"-webkit-monospace","serif";color:black'><o:p> </o:p></span></span></p>
<p class=MsoNormal><a
href="http://ubuntumagnet.com/2008/01/write-intent-bitmaps-md-devices">http://ubuntumagnet.com/2008/01/write-intent-bitmaps-md-devices</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Also, there are others with similar issues: <a
href="http://osdir.com/ml/linux.gentoo.cluster/2006-12/msg00021.html">http://osdir.com/ml/linux.gentoo.cluster/2006-12/msg00021.html</a>
(regarding drbd and software raid)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The recommendation is to move the metadata as others have
said: <a href="http://osdir.com/ml/linux.gentoo.cluster/2006-12/msg00023.html">http://osdir.com/ml/linux.gentoo.cluster/2006-12/msg00023.html</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Michael<o:p></o:p></p>
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