如何在服务器上挂载固态硬盘
一、查看磁盘信息
运行以下命令
sudo fdisk -l
查看服务器上的磁盘信息(以/dev/sda为例)
Disk /dev/sda:931.5 GiB,1000204886016 字节,1953525168 个扇区
单元:扇区 / 1 * 512 = 512 字节
扇区大小(逻辑/物理):512 字节 / 512 字节
I/O 大小(最小/最佳):512 字节 / 512 字节
二、创建物理卷
运行以下命令,创建物理卷
sudo pvcreate /dev/sda
运行后出现以下信息:
WARNING: ext4 signature detected on /dev/sda at offset 1080. Wipe it? [y/n]: y
Wiping ext4 signature on /dev/sda.
Physical volume "/dev/sda" successfully created.
运行以下命令,查看创建好的物理卷
sudo pvdisplay
物理卷信息
"/dev/sda" is a new physical volume of "931.51 GiB"
--- NEW Physical volume ---
PV Name /dev/sda
VG Name
PV Size 931.51 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID QuO2sF-vB91-ZQOI-QLTW-CHGA-ZTgv-cSciSA
三、创建卷组
运行以下命令,创建卷组(假设卷组名称为vg_eth)
sudo vgcreate vg_eth /dev/sda
运行后出现以下信息
Volume group "vg_eth" successfully created
运行以下命令,查看创建好的卷组
sudo vgdisplay
卷组信息
--- Volume group ---
VG Name vg_eth
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 931.51 GiB
PE Size 4.00 MiB
Total PE 238467
Alloc PE / Size 0 / 0
Free PE / Size 238467 / 931.51 GiB
VG UUID ecPhfD-gWTL-J6rb-ZycO-ZeGy-WlCY-v7f7Op
四、创建逻辑卷
运行以下命令,创建逻辑卷(假设卷组名称为lv_eth)
# 创建大小为2G的逻辑卷
sudo lvcreate -n lv_eth -l 2G vg_eth
# 使用全部剩余空间
sudo lvcreate -n lv_eth -l 100%FREE vg_eth
运行后出现以下信息
Logical volume "lv_eth" created.
运行以下命令,查看创建好的逻辑卷
sudo lvdisplay
逻辑卷信息
--- Logical volume ---
LV Path /dev/vg_eth/lv_eth
LV Name lv_eth
VG Name vg_eth
LV UUID lT5fx7-DQSg-NiZE-hncP-sEvk-eAF6-1rnsuL
LV Write Access read/write
LV Creation host, time z, 2023-03-02 15:04:14 +0800
LV Status available
# open 0
LV Size 931.51 GiB
Current LE 238467
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
五、格式化逻辑卷
运行以下命令
sudo mkfs.ext4 /dev/vg_eth/lv_eth
六、磁盘挂载
运行以下命令
sudo mount /dev/vg_eth/lv_eth /eth_data