[clue-tech] Installfest this weekend and LVM backup question

[Aaron Cantrell]

Hello everyone, this will be my first installfest and I wanted to see if
someone might be able to help me create a proper backup of my system before
moving it to software RAID-1.  I recently built a debian lenny machine to
play with Xen on and set everything up using LVM, now I would like to move
to LVM on top of MD using mdadm.  I have this tutorial
http://www.howtoforge.com/set-up-raid1-on-a-running-lvm-system-debian-etchwhich
outlines the process for me, but would like any input on potential
issues.  I would like to create a backup of my system and data before moving
everything as I haven't used pvmove in the past to move a live physical
volume.  This brings me to the point that I don't have to do a live
transition, if someone has a better technique that involves using a boot cd
and a chroot environment (if this is even needed), please let me know.  I
know there are a wide range of backup procedures, and assume something along
the lines of creating a LVM snapshot and using tar would be sufficient,
however googling brings up such a multitude of techniques and various
choices for flags when creating the tarball I'm not sure what is considered
best practice.  Basically I'm fairly new to linux and would like to learn
how to make this transition as smooth as possible.  I also would like to
know if there will be anyone at the installfest that could help me out with
1) creating a proper backup and 2) moving the system over to RAID.  I have
the two identical hard drives in the box already and have a third hard drive
that I can use to back things up to.  Thanks for the help and I look forward
to meeting people on Saturday.

-Aaron Cantrell
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