- fdisk -l
把/dev/sdb分为两个分区格式为Linux Lvm
- fdisk /dev/sdb
查看磁盘
- fdisk -l
创建pv 基本语法:
- pvcreate /dev/sdb1 /dev/sdb2
创建成功提示
Physical volume “/dev/sdb1” successfully created.
Physical volume “/dev/sdb2” successfully created.
创建VG
基本语法:
- vgcreate datastore /dev/sdb1 /dev/sdb2 -s 16M
创建成功提示
Volume group “datastore” successfully created
创建LV
基本语法:
- lvcreate -n database -L 8G datastore
创建成功提示
Logical volume “database” created.
- mkfs.xfs /dev/datastore/database
格式化成功提示
meta-data=/dev/datastore/database isize=512 agcount=4, agsize=524288 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=2097152, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
查看UUID
- blkid /dev/datastore/database
UUID为 /dev/datastore/database: UUID=”69264fa1-097e-4e52-a675-5e23df0ca1bb” TYPE=”xfs”
创建挂载目录
- mkdir -p /data/web_data
设置开机自启
- vi /etc/fstab
在最下面添加如下内容
UUID=69264fa1-097e-4e52-a675-5e23df0ca1bb /data/web_data xfs defaults 0 0
重启主机:reboot
扩容LV
- vgs
- lvextend -L +1G /dev/vgtest/lvetst

- df -Th
- resize2fs /dev/vgtest/lvetst
- pvcreate /dev/sdb3
- vgextend vgtest /dev/sdb3
- pvs
- resize2fs /dev/vgtest/lvtest