<font size=2 face="sans-serif">List,</font>
<br>
<br><font size=2 face="sans-serif">Sometime ago I asked whether or not
Raid 1 could be added to a system with CentOS 5.3 already installed and
running. Well this one of the answers I found, and the answer that
I used:</font>
<br>
<br><font size=2 face="sans-serif"> </font><a href="http://www.howtoforge.org/how-to-set-up-software-raid1-on-a-running-lvm-system-incl-grub-configuration-centos-5.3"><font size=2 face="sans-serif">http://www.howtoforge.org/how-to-set-up-software-raid1-on-a-running-lvm-system-incl-grub-configuration-centos-5.3</font></a>
<br>
<br><font size=2 face="sans-serif">The entire document is 4 pages long
and quite detailed. But you must modify it to your implementation,
specifically if you do not use the default partitioning scheme. Here
are some caveats that may not be listed in the document:</font>
<br>
<ol>
<li value=1><font size=2 face="sans-serif">If you perform this process,
I would do it at the server console.</font>
<li value=2><font size=2 face="sans-serif">Be sure that the situation is
stable, a surprise re-boot may have you pulling out your hair (except for
me, I don't have any).</font>
<li value=3><font size=2 face="sans-serif">If you have a non-production
machine, try it there first.</font>
<li value=4><font size=2 face="sans-serif">Document everything, and I mean
every fdisk -l; pvs; vgs; and lvs. In other words, know your environment
completely.</font>
<li value=5><font size=2 face="sans-serif">I would print and read the document
before starting.</font></ol>
<br><font size=2 face="sans-serif">I know this because I messed up my test
machine 3-times, but in the end my production machine went perfectly.</font>
<br>
<br><font size=2 face="sans-serif">Thanks,<br>
Gene Poole<br>
</font>