创建LVM分区
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shell> fdisk /dev/xvdb #### 选择磁盘Command (m for help): m #### 帮助Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only)Command (m for help): n #### 创建新的分区Command action e extended p primary partition (1-4)p #### 创建主分区Partition number (1-4):1 #### 分区IDFirst cylinder (1-65270, default 1):Using default value 1Last cylinder, +cylinders or +size{K,M,G} (1-65270, default 65270):Using default value 65270Command (m for help):t #### 修改分区类型Command (m for help):8e #### Linux lvmCommand (m for help):w #### 保存修改shell> pvcreate /dev/xvdb1/ #### 创建新的pv卷shell> pvs #### 查看pv卷shell> vgcreate datavg /dev/xvdb1/ #### 创建新的vg卷shell> vgs #### 查看vg卷shell> lvcreate -L 50G -n lv1 datavg #### 创建逻辑卷 -L 指定分区大小 -n 指定lvm名称shell> mkfs.xfs /dev/datavg/lv1 #### 使用mkfs.ext4命令在逻辑卷lvmServer上创建ext4文件系统shell> mount /dev/datavg/lv1 /server/ #### 挂在分区到本地目录/servershell> vi /etc/fstab #### 修改fstab 开机自动挂载## /etc/fstab# Created by anaconda on Thu Aug 14 21:16:42 2014## Accessible filesystems, by reference, are maintained under '/dev/disk'# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info#UUID=94e4e384-0ace-437f-bc96-057dd64f42ee / ext4 defaults,barrier=0 1 1tmpfs /dev/shm tmpfs defaults 0 0devpts /dev/pts devpts gid=5,mode=620 0 0sysfs /sys sysfs defaults 0 0proc /proc proc defaults 0 0/dev/datavg/lv1 /data xfs defaults 0 0:wq#### 保存重启测试注意：* fstab一定要正确填写路径,一旦出错,可能无法正常启动.* 可以在rc.local使用mount命令进行挂载 |
对挂载的逻辑卷进行扩容
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lvextend –L +2G /dev/datavg/lv1对lv1进行在线(动态)扩容e2fsck -f /dev/vg1/lv1 #检查磁盘错误 (ext4执行)resize2fs /dev/vg1/lv1 #更新逻辑卷信息(ext4执行)xfs_growfs /dev/vg1/lv1 #xfs文件系统需要执行 |
参考链接：
http://blog.csdn.net/alone_map/article/details/51850381
https://my.oschina.net/u/3791387/blog/1633523