动态扩展磁盘(LVM)

 

使用gtp格式磁盘为lvm类型

[root@elk-log-srv01 ~]# parted /dev/vdd 
GNU Parted 3.1
Using /dev/vdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt                                                      
(parted) print                                                            
Model: Virtio Block Device (virtblk)
Disk /dev/vdd: 6604GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start  End  Size  File system  Name  Flags

(parted) mkpart primary xfs 0G 6603.5GB                                   
(parted) set 1 lvm on                                                     
(parted) print                                                            
Model: Virtio Block Device (virtblk)
Disk /dev/vdd: 6604GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name     Flags
 1      1049kB  6604GB  6604GB               primary  lvm

(parted) quit                                                             
Information: You may need to update /etc/fstab.

　查看磁盘现有lvm格式　

[root@elk-log-srv01 ~]# pvs
  PV         VG         Fmt  Attr PSize     PFree 
  /dev/vdb1  VolGroup01 lvm2 a--  <1000.00g     0 
  /dev/vdc1  VolGroup01 lvm2 a--      2.00t     0 
  /dev/vdd1             lvm2 ---     <6.01t <6.01t
[root@elk-log-srv01 ~]# vgs
  VG         #PV #LV #SN Attr   VSize  VFree
  VolGroup01   2   1   0 wz--n- <2.98t    0 
[root@elk-log-srv01 ~]# lvs
  LV       VG         Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  lvm_data VolGroup01 -wi-ao---- <2.98t                                                    
[root@elk-log-srv01 ~]# 

 

磁盘添加至pv

[root@elk-log-srv01 ~]# pvcreate /dev/vdd1 
  Physical volume "/dev/vdd1" successfully created.

扩展vg

[root@elk-log-srv01 ~]# vgextend VolGroup01 /dev/vdd1
  Volume group "VolGroup01" successfully extended
[root@elk-log-srv01 ~]# 

扩展容量

[root@elk-log-srv01 ~]# lvextend -l +100%FREE /dev/mapper/VolGroup01-lvm_data
  Size of logical volume VolGroup01/lvm_data changed from <2.98 TiB (780798 extents) to 8.98 TiB (2355197 extents).
  Logical volume VolGroup01/lvm_data successfully resized.

[root@elk-log-srv01 ~]# xfs_growfs /dev/mapper/VolGroup01-lvm_data
meta-data=/dev/mapper/VolGroup01-lvm_data isize=512    agcount=13, agsize=65470464 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=799537152, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=127872, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 799537152 to 2411721728
[root@elk-log-srv01 ~]# df -h
Filesystem                       Size  Used Avail Use% Mounted on
/dev/vda1                         50G  8.1G   39G  18% /
devtmpfs                          16G     0   16G   0% /dev
tmpfs                             16G   24K   16G   1% /dev/shm
tmpfs                             16G  744K   16G   1% /run
tmpfs                             16G     0   16G   0% /sys/fs/cgroup
tmpfs                            3.2G     0  3.2G   0% /run/user/0
/dev/mapper/VolGroup01-lvm_data  9.0T  2.0T  7.1T  22% /opt
tmpfs                            3.2G     0  3.2G   0% /run/user/1008
[root@elk-log-srv01 ~]#