Re: LVM with YaST

houghi wrote:
Stephen Chadfield wrote:
houghi <houghi@xxxxxxxxxxxxxxxxxx> wrote:
I am experimenting a bit with LVM on my 10.0 system. Now wha I did was
fist have just one partion on one drive in LVM. That one is backup and
is 123GB large. /dev/hdf3

Now I wanted to add another 37GB from another drive and partition. That
is /dev/hde2. When I look in YaST, I see the colume group systen, the
Size is 151.6GB and that looks just great.

However when I do a `df -h`, I get :
/dev/mapper/system-LVM
123G 111G 12G 91% /media/backup

So why does it not see the extra space?
It won't automatically expand the size of any partitions contained
within a volume group.

So how do I add extra volume to LVM?

After you have added the extra partition/disk to the volume group,
you can extend the logical volume and then you have to resize
the underlying filesytem.

Not sure about doing all of that via YaST, but easily done
from the command line... something like the following...

pvceate /dev/sdb7
vgextend system /dev/hde2
lvextend -L +37G /dev/system/LVM
(note.. you might not get all 37G, might choose +36G or +35G)
resize_reiserfs /dev/system/LVM

Adding new disks/partitions to a volume group simply adds
space to the pool from which logical volumes use. You can
then create new logical volumes or extend existing ones. Just
adding drive space to the volume group does NOT affect
the existing logical volumes.. you have to tell it what to
do with the extra volume group space.
.

Relevant Pages

  • Resizing LVM partition
    ... Then I tried to resize with parted of systemrescuecd the LVM ... How I can to extend a LVM partition? ...
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  • Re: Resizing LVM partition
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  • Re: Extend LVM partition *backwards*
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