添加大小均为 10G 的虚拟磁盘，配置 raid-5 磁盘。

添加大小均为 10G 的虚拟磁盘，配置 raid-5 磁盘。

添加大小均为 10G 的虚拟磁盘，配置 raid-5 磁盘。
 创建 LVM 命名为/dev/vg01/lv01，大小为 100G，格式化为 ext4，挂在到本地目
录/webdata，在分区内建立测试空文件 disk.txt
1
2
3

#添加十三块10G的硬盘
[root@storagesrv ~]# lsblk
NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda               8:0    0   20G  0 disk 
├─sda1            8:1    0    1G  0 part /boot
└─sda2            8:2    0   19G  0 part 
  ├─centos-root 253:0    0   17G  0 lvm  /
  └─centos-swap 253:1    0    2G  0 lvm  [SWAP]
sdb               8:16   0   10G  0 disk 
sdc               8:32   0   10G  0 disk 
sdd               8:48   0   10G  0 disk 
sde               8:64   0   10G  0 disk 
sdf               8:80   0   10G  0 disk 
sdg               8:96   0   10G  0 disk 
sdh               8:112  0   10G  0 disk 
sdi               8:128  0   10G  0 disk 
sdj               8:144  0   10G  0 disk 
sdk               8:160  0   10G  0 disk 
sdl               8:176  0   10G  0 disk 
sdm               8:192  0   10G  0 disk 
sdn               8:208  0   10G  0 disk 
sr0              11:0    1  4.2G  0 rom  
[root@storagesrv ~]# 
[root@storagesrv ~]# mdadm -Cv /dev/md0 -n12 -x1 -l5 /dev/sd[b-n]
[root@storagesrv ~]# vgcreate /dev/vg01 /dev/md0
[root@storagesrv ~]# lvcreate -L +100G -n lv01 vg01
[root@storagesrv ~]# lvdisplay 
  --- Logical volume ---
  LV Path                /dev/centos/swap
  LV Name                swap
  VG Name                centos
  LV UUID                uR2how-ZAht-cG0G-9i1s-lcnE-RxnH-iCHcdq
  LV Write Access        read/write
  LV Creation host, time localhost, 2022-04-01 11:54:25 -0400
  LV Status              available
  # open                 2
  LV Size                2.00 GiB
  Current LE             512
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     8192
  Block device           253:1
   
  --- Logical volume ---
  LV Path                /dev/centos/root
  LV Name                root
  VG Name                centos
  LV UUID                ogcqfJ-fNdW-2BaJ-d237-tUJT-Wv3p-u8Q1Ct
  LV Write Access        read/write
  LV Creation host, time localhost, 2022-04-01 11:54:25 -0400
  LV Status              available
  # open                 1
  LV Size                <17.00 GiB
  Current LE             4351
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     8192
  Block device           253:0
   
  --- Logical volume ---
  LV Path                /dev/vg01/lv01
  LV Name                lv01
  VG Name                vg01
  LV UUID                QuU2P3-siBK-7Lc0-Rp9Z-tIAI-eyxS-q6ewtJ
  LV Write Access        read/write
  LV Creation host, time storagesrv, 2022-05-17 14:24:57 -0400
  LV Status              available
  # open                 0
  LV Size                100.00 GiB
  Current LE             25600
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     22528
  Block device           253:2
[root@storagesrv ~]# mkfs.ext4 /dev/vg01/lv01 
[root@storagesrv ~]# 
[root@storagesrv ~]# mkdir /webdata
[root@storagesrv ~]# mount /dev/vg01/lv01 /webdata/
[root@storagesrv ~]# cd /webdata/
[root@storagesrv webdata]# touch disk.txt
[root@storagesrv webdata]# ls
disk.txt  lost+found
[root@storagesrv webdata]# 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86