lvm Re: Want to move from root LVM/LILO to LVM/Grub
On Mon, 3 Oct 2005, Mike McCarty wrote:
> >> And depending on how LVM/device-mapper is employed to map the root
> >> partition, it would be *very* difficult for grub to do so.
lilo, syslinux, loadlin, etc doesn't have the same whacky
problems/requirements/restricktions that grub imposes
you can always boot almost anything ..
> I have yet to understand what advantage LVM gives me. Can anyone
> explain why LVM was added, and what advantages/disadvantages
> it has?
- good for growing your FS ... if you had 10 GB disk and is 100%
full, than you can in theory, add another 40GB disk
and you'd now have more space
- what a pain in the butt ...
if any of the disk dies.. you lose everything
original problem ... if your FS is 100% full .. redesign, rethink
how and where data is stored and why, and more importantly,
how you are gonna backup the data ... BEFORE you grow your FS
and if you can in fact back it up, you dont need to grow your FS
since the backup is already working and is probably bigger
such that you and replace the primary too-small system while
working off backup
- disks will always be 100% full, no matter how big your PetaByte
system is ..