Linux LVM 初学

1.create pv:
pvcreate /dev/cciss/c0d0

2.create vg:
vgcreate VG01 /dev/cciss/c0d0

1.create lv:
lvcreate -L 15000M -n LV03 /dev/VG01
lvcreate -l PE /Size -n LV03 /dev/VG01

lvcreate -L 51200M -n LV01 /dev/VG02
lvcreate -L 614400M -n LV02 /dev/VG02

mkfs.ext3 /dev/VG02/LV01
mount /dev/VG02/LV01 /arch

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VG01-LV02
20G 6.9G 12G 37% /
/dev/cciss/c0d0p1 99M 14M 81M 15% /boot
none 6.0G 0 6.0G 0% /dev/shm
/dev/mapper/VG01-LV01
4.0G 41M 3.7G 2% /tmp
/dev/mapper/VG01-LV03
15G 69M 14G 1% /opt
/dev/mapper/VG02-LV01
50G 85M 47G 1% /arch

lvm擴展：

1.vgextend VG00 /dev/sdb

2.lvextend -L+10G /dev/vg00/lv00

3.e2fsck -f /dev/vg00/lv00

4.resize2fs /dev/vg00/lv00