PV VG LV 磁盘的 lvm 扩展 1.增加硬盘 5G 重启 Sql代码 -------查看分区信息 [root@ITZC-szjt1-105-18 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 1024M 0 rom sda 8:0 0 80G 0 disk sda1 8:1 0 500M 0 part /boot sda2 8:2 0 79.5G 0 part vg_redhaall-lv_root (dm-0) 253:0 0 50G 0 lvm / vg_redhaall-lv_swap (dm-1) 253:1 0 3.9G 0 lvm [SWAP] vg_redhaall-lv_home (dm-2) 253:2 0 145.6G 0 lvm /home sdb 8:16 0 200G 0 disk sdb1 8:17 0 150G 0 part vg_redhaall-lv_home (dm-2) 253:2 0 145.6G 0 lvm /home --------查看某个分区 - [root@localhost ~]# fdisk -l /dev/sdb1 - - Disk /dev/sdb: 5368 MB, 5368709120 bytes - 255 heads, 63 sectors/track, 652 cylinders - Units = cylinders of 16065 * 512 = 8225280 bytes - - Disk /dev/sdb doesn't contain a valid partition table