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Date: Mon, 29 Aug 2005 21:28:04 -0700
From: Mark Knecht <markknecht@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] lvm2/external partitions question
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On 8/29/05, W.Kenworthy <billk@iinet.net.au> wrote:
> My scheme is:
> 100 M /boot on ext3 (I was going to store some other info there, but
> its mostly "space" att)
>
> 2G swap
>
> 4G reiserfs with a complete, basic gentoo rescue install - if all goes
> pear shaped, I have a backup including a functioning /boot on this
> partition. Particularly useful with things like a gateway: you can come
> up on the rescue partition and provide near normal service/network
> access while fixing the main problem in a chroot etc. Maintenance of
> this partition is done offline in a chroot so other than an occasional
> test, its rarely run in its own right.
>
> 4G / on reiserfs with /etc, /root etc
>
> remainder (200G is below, and on my main desktop system similarly
> arranged I have 200G + an extra 60G drive) is all LVM
> containing /home, /var, /tmp and /usr.
>
> This system is mainly a LAMP server/gateway for a home network. it also
> contains mostly file storage and backups in /home
>
> moriah ~ # df -h
> Filesystem Size Used Avail Use% Mounted on
> /dev/hda5 3.8G 2.2G 1.6G 59% /
> udev 252M 2.6M 249M 2% /dev
> cachedir 3.8G 2.2G 1.6G 59% /lib/splash/cache
> /dev/vg1/usr 32G 5.9G 27G 19% /usr
> /dev/vg1/var 48G 2.3G 46G 5% /var
> /dev/vg1/tmp 16G 33M 16G 1% /tmp
> /dev/vg1/opt 4.0G 169M 3.9G 5% /opt
> /dev/vg1/home 77G 26G 52G 34% /home
> none 252M 0 252M 0% /dev/shm
> /dev/hda1 92M 18M 69M 21% /boot
> /dev/hda3 3.8G 1.7G 2.1G 46% /mnt/hda3
> moriah ~ #
>
> There are probably performance issues, but they are not noticeable in
> practise. hdparm actually shows a slight speed advantage for the LVM
> partitions, but there are also error messages so I dont really trust it!
>
> BillK
>
Thanks Bill,
That's very helpful. To test my understanding
/dev/hda1 - boot - 100M
/dev/hda2 - swap - 2G
/dev/hda3 - NOT CLEAR - the backup/rescue install?
/dev/hda4 - LVM - 200G
/dev/hda5 - root - 4G
So you've placed pretty much the bulk of the machine in LVM and it's
working well for you. That's cool.
Could you possibly share a bit from your grub.conf file as well as
your fstab file? I think with that info I'd be pretty confident when I
do the build tomorrow morning.
Thanks,
Mark
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