逻辑卷

linux扩容vg空间

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[root@ymgit01 ~]#fdisk -l

[root@ymgit01 ~]#fdisk /dev/sdb n p t 8e p w

[root@ymgit01 ~]#partprobe

[root@ymgit01 ~]# pvcreate /dev/sdc

Physical volume "/dev/sdb1" successfully created

[root@ymgit01 ~]# vgextend appvg /dev/sdc

Volume group "vg_redhat6" successfully extended

[root@ymgit01 ~]# lvextend -l +100%FREE /dev/appvg/applv

Size of logical volume vg_redhat6/LogVol01 changed from 183.80 GiB (47053 extents) to 383.80 GiB (98252 extents).

Logical volume LogVol01 successfully resized.

[root@ymgit01 ~]#resize2fs /dev/appvg/applv

[root@ymgit01 ~]#xfs_growfs /dev/appvg/applv

新增一个新vg

[root@ymgit01 ~]# pvcreate /dev/sdb

[root@ymgit01 ~]# vgcreate -s 32M appvg /dev/sdb

[root@nbumaster1 ~]# lvcreate -l 100%FREE -n applv appvg

[root@nbumaster1 ~]# lvscan

[root@nbumaster1 ~]# mkfs.xfs /dev/appvg/applv //如果已有其他文件系统创建在此分区，必须加上"-f"参数来覆盖它

[root@nbumaster1 ~]# mount -t xfs /dev/appvg/applv /app

 

umount /app

lvremove /dev/appvg/applv

vgremove /dev/appvg

 

 

 

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