Linux扩展文件系统

Linux扩展文件系统

 

将新增的磁盘建成pv
[root@oracle11g dev]# pvcreate /dev/sdb

扩展vg，将新的pv加进vg中
[root@oracle11g dev]# vgextend VolGroup01 /dev/sdb
  Volume group "VolGroup01" successfully extended

将要扩展的文件系统先卸载下来
[root@oracle11g dev]# umount /oracle

扩展lv
[root@oracle11g dev]# lvextend -L 6.5G /dev/VolGroup01/LogVol01
  Extending logical volume LogVol01 to 6.50 GB
  Logical volume LogVol01 successfully resized

需要先校验一下

[root@oracle11g sysconfig]# resize2fs /dev/mapper/VolGroup01-LogVol01 6G
resize2fs 1.35 (28-Feb-2004)
Please run 'e2fsck -f /dev/mapper/VolGroup01-LogVol01' first.

[root@oracle11g sysconfig]# e2fsck -f /dev/mapper/VolGroup01-LogVol01
e2fsck 1.35 (28-Feb-2004)
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/mapper/VolGroup01-LogVol01: 42302/631488 files (0.9% non-contiguous), 888327/1261568 blocks

再扩展文件系统
[root@oracle11g sysconfig]# resize2fs /dev/mapper/VolGroup01-LogVol01 6G
resize2fs 1.35 (28-Feb-2004)
Resizing the filesystem on /dev/mapper/VolGroup01-LogVol01 to 1572864 (4k) blocks.
The filesystem on /dev/mapper/VolGroup01-LogVol01 is now 1572864 blocks long.

将文件系统mount上。

[root@oracle11g sysconfig]# mount –a

查看。
[root@oracle11g sysconfig]# df -h /oracle
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup01-LogVol01
                      6.0G  3.4G  2.4G  59% /oracle