EC2创建逻辑卷lvs

硬盘(PV) → 卷组(VG) → 逻辑卷(LV) → 文件系统 → 挂载

1、创建三块硬盘，并创建物理卷pv

bash 复制代码

[root@ip-172-31-26-146 ~]# lsblk
NAME          MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
nvme0n1       259:0    0  40G  0 disk 
├─nvme0n1p1   259:1    0  40G  0 part /
├─nvme0n1p127 259:2    0   1M  0 part 
└─nvme0n1p128 259:3    0  10M  0 part /boot/efi
nvme1n1       259:4    0  10G  0 disk 
nvme2n1       259:5    0  10G  0 disk 
nvme3n1       259:6    0  10G  0 disk 
[root@ip-172-31-26-146 ~]# pvcreate /dev/nvme1n1 
  Physical volume "/dev/nvme1n1" successfully created.
[root@ip-172-31-26-146 ~]# pvcreate /dev/nvme2n1 
  Physical volume "/dev/nvme2n1" successfully created.
[root@ip-172-31-26-146 ~]# pvcreate /dev/nvme3n1 
  Physical volume "/dev/nvme3n1" successfully created.

查看pv

bash 复制代码

[root@ip-172-31-26-146 ~]# pvdisplay 
  "/dev/sdb" is a new physical volume of "10.00 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/sdb
  VG Name               
  PV Size               10.00 GiB
  Allocatable           NO
  PE Size               0   
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               kQTC2S-gbEm-2DXQ-bsnF-bzgU-xkSv-lZUm1b
   
  "/dev/sdc" is a new physical volume of "10.00 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/sdc
  VG Name               
  PV Size               10.00 GiB
  Allocatable           NO
  PE Size               0   
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               hxV4vZ-7evZ-gNwv-DffZ-SUbb-kpod-ReAwsn
   
  "/dev/sdd" is a new physical volume of "10.00 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/sdd
  VG Name               
  PV Size               10.00 GiB
  Allocatable           NO
  PE Size               0   
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               tk601b-MPVD-smmn-HYVS-XzJO-CQ3Y-XYNG4x

2、创建卷组vg

bash 复制代码

[root@ip-172-31-26-146 ~]# vgcreate vg_data /dev/sdb /dev/sdc /dev/sdd
  Volume group "vg_data" successfully created
[root@ip-172-31-26-146 ~]# vgdisplay 
  --- Volume group ---
  VG Name               vg_data
  System ID             
  Format                lvm2
  Metadata Areas        3
  Metadata Sequence No  1
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                0
  Open LV               0
  Max PV                0
  Cur PV                3
  Act PV                3
  VG Size               <29.99 GiB
  PE Size               4.00 MiB
  Total PE              7677
  Alloc PE / Size       0 / 0   
  Free  PE / Size       7677 / <29.99 GiB
  VG UUID               gmOCDp-YtQR-PmF5-MFcc-XWkv-BfAC-WfjSK4

3、通过卷组vg创建逻辑卷lvs

bash 复制代码

[root@ip-172-31-26-146 ~]# lvcreate -n lv_data -l 100%FREE vg_data
  Logical volume "lv_data" created.
[root@ip-172-31-26-146 ~]# lvs
  LV      VG      Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  lv_data vg_data -wi-a----- <29.99g                                                    
[root@ip-172-31-26-146 ~]# lvdisplay 
  --- Logical volume ---
  LV Path                /dev/vg_data/lv_data
  LV Name                lv_data
  VG Name                vg_data
  LV UUID                aoI2fv-LoQS-duKk-t567-JW4f-fF6j-4lyV5x
  LV Write Access        read/write
  LV Creation host, time ip-172-31-26-146.us-east-2.compute.internal, 2025-12-23 03:14:56 +0000
  LV Status              available
  # open                 0
  LV Size                <29.99 GiB
  Current LE             7677
  Segments               3
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

格式化逻辑卷并查看逻辑卷blkid

bash 复制代码

[root@ip-172-31-26-146 ~]# blkid
/dev/nvme0n1p1: LABEL="/" UUID="1d710364-8204-4eaa-a51c-4ef0c0aff5a4" BLOCK_SIZE="4096" TYPE="xfs" PARTLABEL="Linux" PARTUUID="37a1e0f6-732e-42dc-a824-94ef88305d7f"
/dev/nvme0n1p128: SEC_TYPE="msdos" UUID="C883-7C08" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="e8f2bc2a-e35e-4b31-a6f8-0d5c8468ce3a"
/dev/nvme0n1p127: PARTLABEL="BIOS Boot Partition" PARTUUID="4d550917-4496-437d-829b-f48bc9d8b13f"
/dev/nvme3n1: UUID="tk601b-MPVD-smmn-HYVS-XzJO-CQ3Y-XYNG4x" TYPE="LVM2_member"
/dev/nvme2n1: UUID="hxV4vZ-7evZ-gNwv-DffZ-SUbb-kpod-ReAwsn" TYPE="LVM2_member"
/dev/nvme1n1: UUID="kQTC2S-gbEm-2DXQ-bsnF-bzgU-xkSv-lZUm1b" TYPE="LVM2_member"
[root@ip-172-31-26-146 ~]# mkfs.xfs /dev/vg_data/lv_data
meta-data=/dev/vg_data/lv_data   isize=512    agcount=16, agsize=491328 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=1 inobtcount=1
data     =                       bsize=4096   blocks=7861248, imaxpct=25
         =                       sunit=1      swidth=1 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=16384, version=2
         =                       sectsz=512   sunit=1 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@ip-172-31-26-146 ~]# lsblk
NAME              MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
nvme0n1           259:0    0  40G  0 disk 
├─nvme0n1p1       259:1    0  40G  0 part /
├─nvme0n1p127     259:2    0   1M  0 part 
└─nvme0n1p128     259:3    0  10M  0 part /boot/efi
nvme1n1           259:4    0  10G  0 disk 
└─vg_data-lv_data 253:0    0  30G  0 lvm  
nvme2n1           259:5    0  10G  0 disk 
└─vg_data-lv_data 253:0    0  30G  0 lvm  
nvme3n1           259:6    0  10G  0 disk 
└─vg_data-lv_data 253:0    0  30G  0 lvm  
[root@ip-172-31-26-146 ~]# blkid
/dev/nvme0n1p1: LABEL="/" UUID="1d710364-8204-4eaa-a51c-4ef0c0aff5a4" BLOCK_SIZE="4096" TYPE="xfs" PARTLABEL="Linux" PARTUUID="37a1e0f6-732e-42dc-a824-94ef88305d7f"
/dev/nvme0n1p128: SEC_TYPE="msdos" UUID="C883-7C08" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="e8f2bc2a-e35e-4b31-a6f8-0d5c8468ce3a"
/dev/nvme3n1: UUID="tk601b-MPVD-smmn-HYVS-XzJO-CQ3Y-XYNG4x" TYPE="LVM2_member"
/dev/nvme2n1: UUID="hxV4vZ-7evZ-gNwv-DffZ-SUbb-kpod-ReAwsn" TYPE="LVM2_member"
/dev/nvme1n1: UUID="kQTC2S-gbEm-2DXQ-bsnF-bzgU-xkSv-lZUm1b" TYPE="LVM2_member"
/dev/nvme0n1p127: PARTLABEL="BIOS Boot Partition" PARTUUID="4d550917-4496-437d-829b-f48bc9d8b13f"
/dev/mapper/vg_data-lv_data: UUID="56578315-05a8-4a01-a882-c90cfd977a6c" BLOCK_SIZE="512" TYPE="xfs"

自动挂载逻辑卷lvs

bash 复制代码

[root@ip-172-31-26-146 ~]# vim /etc/fstab 
UUID=56578315-05a8-4a01-a882-c90cfd977a6c /data/lvs xfs defaults,defaults 0 0
[root@ip-172-31-26-146 ~]# mkdir /data/lvs
[root@ip-172-31-26-146 ~]# mount /data/lvs
[root@ip-172-31-26-146 ~]# 
[root@ip-172-31-26-146 ~]# df -h
Filesystem                   Size  Used Avail Use% Mounted on
devtmpfs                     4.0M     0  4.0M   0% /dev
tmpfs                        3.9G  4.0K  3.9G   1% /dev/shm
tmpfs                        1.6G  632K  1.6G   1% /run
/dev/nvme0n1p1                40G   11G   30G  26% /
tmpfs                        3.9G     0  3.9G   0% /tmp
/dev/nvme0n1p128              10M  1.3M  8.7M  13% /boot/efi
overlay                       40G   11G   30G  26% /var/lib/docker/overlay2/84699b7470c48b0c4a1cb8b91b868be21f96c388de173f25df9ac741be7d0d0e/merged
tmpfs                        782M     0  782M   0% /run/user/1000
/dev/mapper/vg_data-lv_data   30G  247M   30G   1% /data/lvs
[root@ip-172-31-26-146 ~]# mount -a