lvm

物理卷：pvcreate /dev/sda8

卷组：vgcreate vg00 /dev/sda8
         vgdisplay

逻辑卷：lvcreate -L 100M vg00 -n lv_tmp
            mkfs.ext3 /dev/vg00/lv_tmp
            mkdir /mnt/lv_tmp
            mount -t ext3 /dev/vg00/lv_tmp /mnt/lv_tmp

减小到100M：
      resize2fs /dev/vg00/lv_tmp 100M
      lvresize -L 100M /dev/vg00/lv_tmp
      e2fsck -f /dev/vg00/lv_tmp
      mount -t ext3 /dev/vg00/lv_tmp /mnt/lv_tmp

增大到150M：
      lvresize -L 150M /dev/vg00/lv_tmp
      resize2fs /dev/vg00/lv_tmp

增加卷组：
      pvcreate /dev/sda9
      vgextend vg00 /dev
      vgdisplay vg00

删除卷组：
      umount /mnt/lv_tmp
      lvremove /dev/vg00/lv_tmp
      vgremove vg00
      pvremove /dev/sda8
      fdisk /dev/sda
              d

mkfs.ext3 /dev/sdb1
partprobe
cat /proc/partitons
vim /etc/fstab
      /dev/sdb1       /mnt/         ext3         defaults         0 0