[linux-lvm] Resizing a physical partition used in LVM

[linux-lvm] Resizing a physical partition used in LVM

[James Lamanna]

Lets say I have the following scenario:
I have 4 paritions on a RAID 5 (h/w RAID with 3ware escalade).
1 partition (/dev/sda4) is managed by LVM.
Currently I have 4 disks in the RAID 5.
If, in the future, I want to add disks to the RAID (the controller has
8 ports), is resizing /dev/sda4 in fdisk to accomodate the extra space
problematic?
In other words would the following work:
1) Stop LVM.
2) Extend /dev/sda4 to the end of the RAID with fdisk
3) Start LVM
4) lvextend a logical partition to the end of the physical volume.

Or do I have to create a new partition on the disk for this extra space?

Thanks.

-- James

Re: [linux-lvm] Resizing a physical partition used in LVM

[Luca Berra]

On Fri, Jan 06, 2006 at 05:43:03PM -0800, James Lamanna wrote:
>1) Stop LVM.
>2) Extend /dev/sda4 to the end of the RAID with fdisk
....
vgcfgbackup, edit the backup file by hand, vgcfgrestore
....
>3) Start LVM
>4) lvextend a logical partition to the end of the physical volume.
>
>Or do I have to create a new partition on the disk for this extra space?
The latter is easier to achieve.
L.

-- 
Luca Berra -- bluca@comedia.it
        Communication Media & Services S.r.l.
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