On Wed, Jun 03, 2009 at 06:48:03PM -0400, Douglas A. Tutty wrote: > On Wed, Jun 03, 2009 at 11:44:00AM -0500, Zhengquan Zhang wrote: > > Though I have used lvm for some time, I have one question that I don't > > > > understand. > > > > > > > > For one harddrive I often create a /boot parition that is not lvm and > > > > create a huge partition on the rest of the harddrive for PV of lvm. Now > > > > I am thinking what is the difference between doing partition like this > > > > and just a single big partition without lvm? > > > > With one big partition, you lose the ability to: > > - have a separate /var (or /var/log) to keep logs from > filling up / > > - have different mount options (e.g. noexec, nodev) on > /home > > - have a separate /home > > > Without LVM, you lose the ability to : > > - resize partitions as needed > > - migrate data from one disk to another, e.g. if a drive > starts misbehaving but you need to keep the system live > rather than reinstalling/restoring.
Could you elaborate more on this? As far as migration is concerned, what is the advantage of LVM? > > > Instead of a separate /boot, I often use a separate / (which contains > /boot). In this way, the / partition isn't part of LVM (I make it 500 > MB and usually only have under 200 MB used) and can be booted into if > the need arises, with more tools available than within the initrd. Most > of my boxes won't boot a live CD. So I guess for /tmp /var /usr etc you have separate LVs? or else a 500M / should be too small? > > Doug. Thanks for the pros and cons. I have clearer understanding now. -- Zhengquan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
