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| [root@node2 ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (3 primary, 0 extended, 1 free)
e extended (container for logical partitions)
Select (default e): p
Selected partition 4
First sector (2095106-8388607, default 3645440):
Last sector, +sectors or +size{K,M,G,T,P} (3645440-8388607, default 8388607):
Created a new partition 4 of type 'Linux' and of size 2.3 GiB.
Command (m for help): w
The partition table has been altered.
Syncing disks.
[root@node2 ~]# pvcreate /dev/vdb4
Physical volume "/dev/vdb4" successfully created.
[root@node2 ~]# vgcreate qagroup /dev/vdb4 -s 16m
Volume group "qagroup" successfully created
[root@node2 ~]# vgdisplay qagroup
--- Volume group ---
VG Name qagroup
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 2.25 GiB
PE Size 16.00 MiB
Total PE 144
Alloc PE / Size 60 / 960.00 MiB
Free PE / Size 84 / 1.31 GiB
VG UUID HesSpg-CsMU-Dckq-Oydn-cUmK-cc3o-ddDJEW
[root@node2 ~]# lvcreate qagroup -l 60 -n qa
Logical volume "qa" created.
[root@node2 ~]# lvdisplay /dev/qagroup/qa
--- Logical volume ---
LV Path /dev/qagroup/qa
LV Name qa
VG Name qagroup
LV UUID WsfmKz-HKza-UrPO-CbBg-LkLH-GTwg-LOUkEk
LV Write Access read/write
LV Creation host, time node2.domain250.example.com, 2023-02-19 12:52:20 -0500
LV Status available
# open 0
LV Size 960.00 MiB
Current LE 60
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2
[root@node2 ~]# mkfs.ext3 /dev/qagroup/qa
mke2fs 1.45.4 (23-Sep-2019)
Creating filesystem with 245760 4k blocks and 61440 inodes
Filesystem UUID: 2ea0bb6b-a006-4b79-a181-3a8236f1d920
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
[root@node2 ~]# lsblk --fs
NAME FSTYPE LABEL UUID MOUNTPOINT
...
vdb
...
└─vdb4 LVM2_member xiO2Ji-56zW-TaDP-nH6B-3mCW-4rmL-WumxrZ
└─qagroup-qa ext3 2ea0bb6b-a006-4b79-a181-3a8236f1d920
vdc
[root@node2 ~]# mkdir -p /mnt/qa
[root@node2 ~]# vim /etc/fstab
...
/dev/qagroup/qa /mnt/qa ext3 defaults 0 0
[root@node2 ~]# systemctl daemon-reload
[root@node2 ~]# mount /mnt/qa
[root@node2 ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
...
/dev/mapper/qagroup-qa ext3 929M 1.2M 880M 1% /mnt/qa
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