[K12OSN] LVM - is anyone using this?

[Les Bell]

ert Rolston <bert.rolston at clear.net.nz> wrote:

>>
Is anyone using LVM?
<<

Yes - I use LVM on most of the servers I administer and even on my
notebook; it's turned out to be useful for those cases when I add new
drives. The easiest way to do it is to use Webmin, which has a really neat
LVM module. Alternatively, set it up when installing - Anaconda's Disk
Druid lets you set up LVM/RAID during the install.

If you look at our office server you can see how things have obviously been
swapped around over the years, including the addition of a RAID 1 array:

Disk /dev/sda: 255 heads, 63 sectors, 4863 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1      4863  39062016   8e  Linux LVM

Disk /dev/hda: 255 heads, 63 sectors, 2434 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1         3     24066   83  Linux
/dev/hda2             4      2434  19527007+   5  Extended
/dev/hda5             4      1278  10241406   83  Linux
/dev/hda6          1279      1533   2048256   83  Linux
/dev/hda7          1534      1725   1542208+  83  Linux
/dev/hda8          1726      1917   1542208+  83  Linux
/dev/hda9          1918      1950    265041   82  Linux swap
/dev/hda10         1951      1976    208813+  83  Linux
/dev/hda11         1977      2434   3678853+  8e  Linux LVM

/dev/hda7 on / type ext3 (rw)
none on /proc type proc (rw)
usbdevfs on /proc/bus/usb type usbdevfs (rw)
/dev/hda1 on /boot type ext2 (rw)
/dev/hda8 on /opt type ext3 (rw)
/dev/hda10 on /var type ext3 (rw)
none on /dev/shm type tmpfs (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/vg00/lv00 on /var/local/notesdata type ext3 (rw)
/dev/vg00/lv01 on /home type ext3 (rw)
/dev/vg00/lv02 on /home/les/download type ext3 (rw)
/dev/hda5 on /var/isos type ext3 (rw)
/dev/hda6 on /usr/src type ext3 (rw)

The only down side is that upgrading to the 2.6 kernel is not possible, as
it no longer supports LVM1. Red Hat's approach will be to support Sistina,
and I'm not sure I'm ready for that. . .

Best,

--- Les Bell, RHCE, CISSP
[http://www.lesbell.com.au]