[CentOS] Disc layout advice
lists at spuddy.org
Tue Oct 6 18:39:13 UTC 2009
On Tue, Oct 06, 2009 at 05:28:46PM +0000, Joseph L. Casale wrote:
> Should I just pvcreate the raw /dev/md0 and not worry about creating an lvm
> partition on it, or should/(can?) I?
pvcreate is the first step of creating LVM areas. If you're not going
to use LVM then you don't need to pvcreate. However I recommend
that you _do_.
Typically the steps are:
mdadm to create the array (you've already done that)
pvcreate the disk (/dev/md0)
vgcreate a volume group, with /dev/md0 in it
lvcreate the logical volumes inside the volume group
vgcreate MyVolumeGroup /dev/md0
lvcreate -L 1T MyVolumeGroup MyLVol1
lvcreate -L 1T MyVolumeGroup MyLVol2
lvcreate -L 1T MyVolumeGroup MyLVol3
would create 3 1Terabyte logical volumes which could be accessed as
/dev/MyVolumeGroup/MyLVol1 etc etc. They're what you could run mke2fs
on and mount.
(commands off the top of my head, so might be slightly wrong!)
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