On 3/11/2011 18:51, Jon Peatfield wrote:
I've not checked if it is still the case in EL6 but the default
installer for EL4/5 strongly encourages people to always use the same
'VG' name when setting up LVM.
IMHO this is a pain because if people follow that pattern then if/when a
disk is moved to another machine (e.g. temporarily for diagnostics) the
VG names on the disks clash.
While there are ways round that problem it (seems to me) best to avoid
it by allocating unique names for the VGs (we base them on the hostname
and purpose e.g. system VG in 'fox' might be FoxSys0 - the mixed case is
on purpose so they can't clash with other dev entries...)
Also the LV names that the installer suggests are just plain stupid. I
much prefer to name them after the purpose - they don't need to be
unique so I usually use the name of the mountpoint (or root for / and
swap for swap).
Thankfully, when I last checked, anaconda added the system's hostname to
the recommended VG name, making the default much more sane.
gholms@luna ~ % mount | grep ext
/dev/mapper/vg_luna-lv_root on / type ext4 (rw)
/dev/sda1 on /boot type ext4 (rw)
/dev/mapper/vg_luna-lv_home on /home type ext4 (rw)
--
Garrett Holmstrom
