????????????????????????????????????????????????????????????????????С????????????????
?????????????????????????????????????????????????????????????????????????????????????
????????????
????PE physical Extend    //???????
????PV physical volume    //?????
????VG volume group       //????
????LV logical volume     //?????
??????? LVM ????裺
????a. ???????????? PV??????????????????????4M??С??PE??
????b. ???? VG?????飩--???????
??????????????PV????????VG?????PV??PE???????VG??PE?????
????c. ???? LV ??????????
?????????LV ???? PE ????????С? PE ?????????????LV??PE??????????????????
????d. ????? LV???????
?????????LV ????????????????????????????? LV ?? PE ??????????????????????????????VG??????
????/dev/vgname/lvname ????
????LVM????????????????￡?
????1.?????????????????????????pvcreate /dev/sdb1  /dev/sdb2
????2.???????????????????У?vgcreate vgname -vg /dev/sdb1   /dev/sdb2
????3.??????鴴??????????mylv(????)??lvcreate -L 10G -n mylv  vgname -vg
????4.???????????mkfs.ext4 /dev/linux -vg/mylv
????5.????????mount /dev/linux -vg/mylv  /mnt
??????????????
????pvdisplay (???)
????pvs
????vgdisplay
????vgs
????lvdisplay
????lvs
??????????LVM???????
????1.??????LV(?????)??lvremove /dev/linux -vg/mylv
????2.??????VG(????)??vgremove linux -vg
????3.??????PV(?????)??pvremove /dev/sda1
????????????????С??
????1????????????????????????????????????????ж????????????????????????????￡?
????1.????????????????п??vgdisplay
????2.??????????????lvextend -L +10G /dev/linux -vg/mylv
????3.???????????resize2fs /dev/linux -vg/mylv
????4.?????o?????????df -h