LINUX 扩展逻辑卷

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LINUX 逻辑卷管理

一、添加逻辑卷[root@OAdata VolGroup00]#fdisk /dev/sdcnp t8e[root@OAdata VolGroup00]#pvcreate /dev/sdc1[root@OAdata VolGroup00]#pvdisplay[root@OAdata VolGroup00]#vgcreate vg0 /dev/sdc1[root@OAdata VolGroup00]#vgdisplay[root@OAdata VolGroup00]#lvcreate -L 49G -n lv0 vg0[root@OAdata VolGroup00]#mkfs.ext4 /dev/vg0/lv0[root@OAdata VolGroup00]#mount /dev/vg0/lv0 /u01/[root@OAdata VolGroup00]#vi /etc/fstab                         /dev/vg0/lv0            /u01                    ext4    defaults        0 0

二、扩展逻辑卷

格式化分区，并修改为8e类型：fdisk /dev/sdbnpt8ew

三、创建物理卷

[root@OAdata VolGroup00]#pvcreate /dev/sdb1[root@OAdata VolGroup00]# vgextend /dev/VolGroup00 /dev/sdb1Volume group “VolGroup00″ successfully extended

四、扩展逻辑卷

[root@OAdata VolGroup00]# lvextend -L +249.00GB /dev/mapper/VolGroup00-LogVol00Extending logical volume LogVol00 to 308.12 GBLogical volume LogVol00 successfully resized

五、调整卷大小

[root@OAdata VolGroup00]# resize2fs /dev/mapper/VolGroup00-LogVol00resize2fs 1.39 (29-May-2006)Filesystem at /dev/mapper/VolGroup00-LogVol00 is mounted on /; on-lineresizing requiredPerforming an on-line resize of /dev/mapper/VolGroup00-LogVol00 to 80773120(4k) blocks.The filesystem on /dev/mapper/VolGroup00-LogVol00 is now 80773120 blockslong.

六、查看调整后的分区

[root@OAdata VolGroup00]# df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/VolGroup00-LogVol00299G 3.5G 280G 2% //dev/sda1 99M 13M 82M 14% /boottmpfs 187M 0 187M 0% /dev/shm

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