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记一下记录，忘了好找 某服务器硬盘没划分完，某个分区相当小，很浪费
[root@svr68 ~]# vgdisplay --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 11 VG Access read/write VG Status resizable MAX LV 0 Cur LV 6 Open LV 5 Max PV 0 Cur PV 2 Act PV 2 VG Size 836.34 GB PE Size 32.00 MB Total PE 26763 Alloc PE / Size 18238 / 569.94 GB Free PE / Size 8525 / 266.41 GB VG UUID GQxsHi-QnFz-54YO-Htzs-jwBp-n7t5-DoEv8R ###可以看到有266G的空闲空间
[root@svr68 ~]# df -h 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/VolGroup00-LogVol00 3.9G 477M 3.3G 13% / /dev/mapper/VolGroup00-LogVol05 252G 2.7G 239G 2% /home /dev/mapper/VolGroup00-LogVol04 3.9G 730M 3.0G 20% /var /dev/mapper/VolGroup00-LogVol03 35G 221M 33G 1% /tmp /dev/mapper/VolGroup00-LogVol02 256G 9.5G 234G 4% /usr /dev/sda3 190M 15M 166M 9% /boot tmpfs 7.9G 0 7.9G 0% /dev/shm ### 目标是/home目录，准备扩它。其他也可以扩，看自己需要。
[root@svr68 ~]# umount /dev/mapper/VolGroup00-LogVol05 umount: /home: device is busy umount: /home: device is busy ###卸载home目录所在逻辑卷，但是有进程在用
[root@svr68 ~]# fuser -m /dev/mapper/VolGroup00-LogVol05 /dev/mapper/VolGroup00-LogVol05: 4996c 4997c ###看谁在用它
[root@btirsvr68 ~]# kill 4996 4997 -bash: kill: (22338) - 没有那个进程 -bash: kill: (22340) - 没有那个进程 ###干掉
[root@svr68 ~]# fuser -m /dev/mapper/VolGroup00-LogVol05 ### 嗯，没了
[root@svr68 ~]# umount /dev/mapper/VolGroup00-LogVol05 ###这下卸载了
[root@svr68 ~]# lvextend -l +8525 /dev/VolGroup00/LogVol05 Extending logical volume LogVol05 to 526.41 GB Logical volume LogVol05 successfully resized ###扩展8525个单位，从vgdisplay看到的最大了。也可以用-L 参数扩充具体的大小如lvextend -L+266G /dev/VolGroup00/LogVol05
[root@svr68 ~]# resize2fs /dev/VolGroup00/LogVol05 resize2fs 1.39 (29-May-2006) Please run 'e2fsck -f /dev/VolGroup00/LogVol05' first. ###挂在钱要重新改变尺寸才真正生效，噢，碰到一个问题，要先检查一下磁盘。
[root@svr68 ~]# e2fsck -f /dev/VolGroup00/LogVol05 e2fsck 1.39 (29-May-2006) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/VolGroup00/LogVol05: 30956/68157440 files (0.8% non-contiguous), 2819130/68157440 blocks ###查吧，花点时间而已，约1分钟
[root@btirsvr68 ~]# resize2fs /dev/VolGroup00/LogVol05 resize2fs 1.39 (29-May-2006) Resizing the filesystem on /dev/VolGroup00/LogVol05 to 137994240 (4k) blocks. The filesystem on /dev/VolGroup00/LogVol05 is now 137994240 blocks long. ###改大小成功
[root@btirsvr68 ~]# mount /dev/VolGroup00/LogVol05 ###挂上啦
[root@btirsvr68 ~]# df -h 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/VolGroup00-LogVol00 3.9G 477M 3.3G 13% / /dev/mapper/VolGroup00-LogVol04 3.9G 730M 3.0G 20% /var /dev/mapper/VolGroup00-LogVol03 35G 221M 33G 1% /tmp /dev/mapper/VolGroup00-LogVol02 256G 9.5G 234G 4% /usr /dev/sda3 190M 15M 166M 9% /boot tmpfs 7.9G 0 7.9G 0% /dev/shm /dev/mapper/VolGroup00-LogVol05 510G 2.7G 492G 1% /home ###哈，kuo (责任编辑：IT) |