[linux-lvm] newbie question
James
james at fr.clara.net
Fri Feb 2 16:09:27 UTC 2001
This is a great help thanks :-)
On Fri, 2 Feb 2001, Eric M. Hopper wrote:
> On Fri, Feb 02, 2001 at 04:08:49PM +0100, JAmes wrote:
> >
> > Another question I have is can anybody show me a good install plan, a
> > partition scheme for a machine where everything but the / is lvm'ed. I
> > haven't seen this discussed anywhere. At the moment I am just testing on a
> > box with a partition / a swap and a /home .
> >
> > If I did a standard installation using say 5 partitions / /usr /var/ /home
> > swap, it would be a pain transferring this to an lvm system. So how do you
> > lot do it ? WHat sort of installation do you do?
> >
> > my partitions at the moment
> >
> > Device Boot Start End Blocks Id System
> > /dev/hda1 * 1 608 4883728+ 83 Linux
> > /dev/hda2 609 627 152617+ 82 Linux swap
> > /dev/hda3 628 749 979965 83 Linux
> > /dev/hda4 750 1601 6843690 5 Extended
> > /dev/hda5 750 871 979933+ 8e Linux LVM
> > /dev/hda6 872 993 979933+ 8e Linux LVM
> > /dev/hda7 994 1601 4883728+ 8e Linux LVM
> >
> > Thanks again.
>
> One thing I can say right now is that you _don't_ want more than
> one LVM partition on any given physical device. Actually, it isn't that
> bad of a problem unless you try to use LVM to do striping. Then LVM
> gets confused about what is and what isn't a seperate physical device.
> Striping across /dev/hda5 and /dev/hda6 in your partitioning scheme
> would be a performance disaster.
>
> Here is my partitioning scheme:
> Device Boot Start End Blocks Id System
> /dev/hda1 1 9859 4968904+ b Win95 FAT32
> /dev/hda2 15457 59303 22098888 8e Linux LVM
> /dev/hda4 9860 15456 2820888 83 Linux (spare unused)
>
> (That Win95 partition is actually completely unused, and left over from
> when I did used to run Win95.)
>
> (The spare unsused partition is used for installing new versions of Linux
> from distributions that are neither LVM nor reiserfs aware.)
>
> Device Boot Start End Blocks Id System
> /dev/hdc1 1 102 51376+ 83 Linux (/boot)
> /dev/hdc2 103 59554 29963808 5 Extended
> /dev/hdc5 15708 59554 22098856+ 8e Linux LVM
> /dev/hdc6 103 14666 7340224+ 83 Linux (/)
> /dev/hdc7 14667 15707 524632+ 82 Linux swap
>
> Notice that there is only one LVM partition per device. If I
> could do it again, I would put swap closer to the beginning of the
> device (right after /boot). Hard-drives typically access data near
> their beginning faster.
>
> Have fun (if at all possible),
> --
> The best we can hope for concerning the people at large is that they
> be properly armed. -- Alexander Hamilton
> -- Eric Hopper (hopper at omnifarious.mn.org http://www.omnifarious.org/~hopper) --
>
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