LVM

创建卷组、卷

root@ubuntu:~# pvcreate /dev/vdb
  Physical volume "/dev/vdb" successfully created
root@ubuntu:~# vgcreate u01 /dev/vdb
  Volume group "u01" successfully created
root@ubuntu:~# lvcreate -l 100%VG -n lv1 u01
  Logical volume "lv1" created.

格式化分区

root@ubuntu:~# mkfs.xfs /dev/mapper/u01-lv1 
meta-data=/dev/mapper/u01-lv1    isize=512    agcount=4, agsize=32767744 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=0
data     =                       bsize=4096   blocks=131070976, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=63999, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

挂载分区

root@ubuntu:~# mkdir /u01

root@ubuntu:~# vi /etc/fstab 
...
/dev/mapper/u01-lv1      /u01    xfs     defaults 0 0

root@ubuntu:~# mount -a

也可以使用UUID挂载

root@ubuntu:~# lsblk -f
NAME                  FSTYPE      LABEL UUID                                   MOUNTPOINT
fd0                                                                            
sr0                                                                            
vda                                                                            
├─vda1                ext2              3a84e925-0dc3-4aea-befa-4b5e8f93676d   /boot
├─vda2                                                                         
└─vda5                LVM2_member       3OdKAM-Ay3e-2j0J-7Hdw-dLuO-i675-0vuSUr 
  ├─ubuntu--vg-root   ext4              64b061d2-9a50-4634-95b5-b65ae9468b73   /
  └─ubuntu--vg-swap_1 swap              b8e459d8-a10c-4902-9bf4-6142ce1e52de   [SWAP]
vdb                   LVM2_member       m6TSCF-5GjB-1C99-7Re2-QCI4-pWVy-OmHUtm 
└─u01-lv1             xfs               f5f302f7-3bc1-484a-9acf-54bee20abbb8  


root@ubuntu:~# vi /etc/fstab 
...
UUID=f5f302f7-3bc1-484a-9acf-54bee20abbb8 /u01                   xfs     defaults        0 0

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