Page index:
Overview
Setup Physical Volumes
Setup Volume Groups
Setup Logical Volume Group
Extending Volume Group
Extending Logical Volume
Reducing Logical Volume
Page 3 of 7
Let’s create it again.
[root@SRV01 ~]# pvcreate /dev/sdc1 /dev/sdd1 /dev/sde1
Physical volume “/dev/sdc1” successfully created
Physical volume “/dev/sdd1” successfully created
Physical volume “/dev/sde1” successfully created
Physical volume “/dev/sdf1” successfully created
List the physical volume details.
[root@SRV01 ~]# pvscan
PV /dev/sdc1 lvm2 [19.99 GB]
PV /dev/sdd1 lvm2 [19.99 GB]
PV /dev/sde1 lvm2 [19.99 GB]
PV /dev/sdf1 lvm2 [19.99 GB]
Total: 4 [79.97 GB] / in use: 0 [0 ] / in no VG: 4 [79.97 GB]
Display the details about PV.
[root@SRV01 ~]# pvdisplay
“/dev/sdc1” is a new physical volume of “19.99 GB”
— NEW Physical volume —
PV Name /dev/sdc1
VG Name
PV Size 19.99 GB
Allocatable NO
PE Size (KByte) 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID LJG8dL-hgFi-Tnjp-Ry6I-euNH-mBce-gTb0wj
“/dev/sdd1” is a new physical volume of “19.99 GB”
— NEW Physical volume —
PV Name /dev/sdd1
VG Name
PV Size 19.99 GB
Allocatable NO
PE Size (KByte) 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID N01AmP-2y7J-FUIF-iPdn-w1SF-8JDp-KJMSy7
“/dev/sde1” is a new physical volume of “19.99 GB”
— NEW Physical volume —
PV Name /dev/sde1
VG Name
PV Size 19.99 GB
Allocatable NO
PE Size (KByte) 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID zmmtGR-xrvQ-MzIl-1Auv-7Z6f-yXhU-NuZpu0
“/dev/sdf1” is a new physical volume of “19.99 GB”
— NEW Physical volume —
PV Name /dev/sdf1
VG Name
PV Size 19.99 GB
Allocatable NO
PE Size (KByte) 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID 2did5n-qNYl-157V-byLn-1A69-1aXT-gP0W93
Volume Group Creation:
Now we can create the volume group named “smbserver”. Here we will use only three PV’s. The fourth one we will use when extending the VG.
[root@SRV01 ~]# vgcreate smbserver /dev/sdc1 /dev/sdd1 /dev/sde1
Volume group “smbserver” successfully created
Remove the VG for testing purpose.
[root@SRV01 ~]# vgremove smbserver
Volume group “smbserver” successfully removed
Create it again.
[root@SRV01 ~]# vgcreate smbserver /dev/sdc1 /dev/sdd1 /dev/sde1
Volume group “smbserver” successfully created
Use the following command to list how many volume group are available on server.
[root@SRV01 ~]# vgscan
Reading all physical volumes. This may take a while…
Found volume group “smbserver” using metadata type lvm2
The following command shows the brief details about the volume group called “smbseerver”. You can use the command without second argument (smbserver) that will brief all VG’s in server.
[root@SRV01 ~]# vgdisplay smbserver
— Volume group —
VG Name smbserver
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 59.98 GB
PE Size 4.00 MB
Total PE 15354
Alloc PE / Size 0 / 0
Free PE / Size 15354 / 59.98 GB
VG UUID v5pnWs-mrqq-XTYa-hePj-RqS8-cJv8-Z59fdC
Page 2: Setup Physical Volumes
Page 4: Setup Logical Volume Group
