[CentOS] When should LVM be used?

Mon Aug 9 09:00:27 UTC 2010
Ron Blizzard <rb4centos at gmail.com>

On Sat, Jul 31, 2010 at 8:52 AM, Drew <drew.kay at gmail.com> wrote:

> LVM adds flexability that regular partitioning can't.
> Example 1. Say you've mounted an entire 2TB disk as /home and it's
> almost full. Now you want to add another 2TB to /home. How do you?
> Easiest way is with LVM. You just add the new disk into LVM's pool of
> storage and expand the home partition (Logical volume) to use the new
> space. Now you have a single filesystem spread across two disks.
> Example 2. Now let's say that you bought a NAS device (QNAP, Drobo,
> Buffalo) that does iSCSI or NFS and you want to move your data off the
> two local disks. With LVM you just add the new 'disk' into the pool
> then tell LVM to move existing data off the 'old' disk.
> Try doing that with parted. :-P

I understand the advantages when using a server, but my personal
computer is a Small Form Factor Dell GX270 with only one hard drive
slot.  But I'll look closer into LVM options when I install on the
bigger hard drive. Thanks.

RonB -- Using CentOS 5.5