On Sun, May 2, 2010 at 10:44 PM, Kwan Lowe <kwan.lowe@xxxxxxxxx> wrote:
>OK.. get you now..
> I've also safely grown LVM volumes online, but /var is a bit more trickey
> since a lot of stuff runs straight from it .So I don't want to attempt this
> if it's going to break the whole system.
The main thing to keep in mind is that you'll need a little bit of
free space in order to grow /var. I grow /var often on many systems.
There's also a possibility that you'll need to run tune2fs to grow the
journal to allow a larger maximum filesystem size. This cannot be done
with /var online though.
_______________________________________________
heh, there's plenty space left on the drive:
[root@zaxen02 ~]# pvscan
PV /dev/md1 VG LVM01 lvm2 [232.69 GB / 141.69 GB free]
Total: 1 [232.69 GB] / in use: 1 [232.69 GB] / in no VG: 0 [0 ]
PV /dev/md1 VG LVM01 lvm2 [232.69 GB / 141.69 GB free]
Total: 1 [232.69 GB] / in use: 1 [232.69 GB] / in no VG: 0 [0 ]
As far as I know, one needs to unmount a volume in order to resize it, but /var can't be unmounted.
I wonder if I could script something that could run in single user mode when it reboots, but
1. how do I tell it to reboot in ginle user mode, via SSH?
2. how do I tell the server to login by itself, i.e. don't need someone to type in the root password @ the console, then check to make sure it's in single user mode?
From here could be as simple as unmouting /var, running lvresize +2GB /dev/LVM/var etc
Has anyone done anything like this before, with success? i.e. do you have a working procedure / script to share with me? I won't be able to test the process, if it fails then I'm stuck
--
Kind Regards
Rudi Ahlers
SoftDux
Website: http://www.SoftDux.com
Technical Blog: http://Blog.SoftDux.com
Office: 087 805 9573
Cell: 082 554 7532
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