centos新增数据盘如何进行分区挂载？

最新推荐文章于 2024-08-23 10:57:48 发布

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最新推荐文章于 2024-08-23 10:57:48 发布

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分类专栏：系统运维文章标签： centos linux 运维

本文链接：https://blog.youkuaiyun.com/weixin_44147924/article/details/121467405

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这篇博客详细记录了在Linux系统中如何对新增的200G数据盘进行fdisk分区，创建物理卷pvcreate，卷组vgcreate，逻辑卷lvcreate，并使用ext4文件系统格式化，最后挂载到/data目录的过程。通过vim编辑/etc/fstab文件，添加UUID确保开机自动挂载。

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新增200G数据盘，需要手动fdisk然后挂载

1.查询

2.执行如下命令

[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# pvcreate /dev/vdb
  Physical volume "/dev/vdb" successfully created.
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# vgcreate vg01 /dev/vdb
  Volume group "vg01" successfully created
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# vgdisplay vg01
  --- Volume group ---
  VG Name               vg01
  System ID
  Format                lvm2
  Metadata Areas        1
  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                1
  Act PV                1
  VG Size               <200.00 GiB
  PE Size               4.00 MiB
  Total PE              51199
  Alloc PE / Size       0 / 0
  Free  PE / Size       51199 / <200.00 GiB
  VG UUID               pymJxR-cXk0-QDBP-S3eB-Jh3V-L3IK-SSw90x
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# lvcreate -l 51199 -n lv01 vg01
  Logical volume "lv01" created.
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# mkfs.ext4 /dev/vg01/lv01
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
13107200 inodes, 52427776 blocks
2621388 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2199912448
1600 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# mkdir -p /data
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# mount /dev/vg01/lv01 /data/
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# df -h
Filesystem             Size  Used Avail Use% Mounted on
devtmpfs                16G     0   16G   0% /dev
tmpfs                   16G     0   16G   0% /dev/shm
tmpfs                   16G   17M   16G   1% /run
tmpfs                   16G     0   16G   0% /sys/fs/cgroup
/dev/vda1               40G  2.4G   35G   7% /
tmpfs                  3.2G     0  3.2G   0% /run/user/0
/dev/mapper/vg01-lv01  197G   61M  187G   1% /data

最后执行挂载，找到vdb的UUID
[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# blkid
/dev/vda1: UUID="1cf0b662-ebd1-44a2-bbd2-0a6e58aec5fa" TYPE="ext4"
/dev/mapper/vg01-lv01: UUID="f2bd3772-93a2-4ad4-9b5a-e176efa9286f" TYPE="ext4"
/dev/vdb: UUID="ebZGJS-b6HV-GwUf-e4Ww-r5tw-eArV-DEoIQP" TYPE="LVM2_member"

[root@Server-43e8c5ca-9b30-4807-b1d7-5c8202e260fb yum.repos.d]# vim /etc/fstab
UUID=f2bd3772-93a2-4ad4-9b5a-e176efa9286f /data                 ext4    defaults        1 1

保存退出，完成