Linux磁盘管理：lvcreate 常用命令

[root@rusky ~]# hostnamectl
   Static hostname: localhost.localdomain
Transient hostname: rusky.com
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 9c10c7a9e32e40acb19659a30f73603b
           Boot ID: d20cdc4bccf04de3bc2639830b61a8e6
    Virtualization: kvm
  Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
       CPE OS Name: cpe:/o:redhat:enterprise_linux:7.2:GA:server
            Kernel: Linux 3.10.0-327.el7.x86_64
      Architecture: x86-64
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[root@rusky ~]# pvs
  PV         VG          Fmt  Attr PSize  PFree 
  /dev/sda2  rhel        lvm2 a--   7.51g 40.00m
  /dev/sdb   yum_repo_vg lvm2 a--  15.00g 15.00g    --有一个15G大小的PV，VG名字为yum_repo_vg
[root@rusky ~]# lvs    --有两个默认的LV:root、swap
  LV   VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  root rhel -wi-ao----   6.67g                                                    
  swap rhel -wi-ao---- 820.00m                                                    
[root@rusky ~]# hostnamectl