redhat6.2 on the LVM.
1
First, add a hard drive to RH on the virtual machine.
2
Start RH
3
Enter on the terminal
[beigang@localhost~] $fdisk-L
disk/dev/sdc:1073 MB, 1073741824 bytes
......
DISK/DEV/SDC doesn ' t contain a valid partition table
4
Partition 1
[beigang@localhost~] $fdisk/DEV/SDC
Command (M for help): N
Command Action
E Extended
P primary partition (1-4)
P
Partition number (1-4): 1
The cylinder (1-130, default 1):
Using Default value 1
Last cylinder, +cylinders or +size{k,m,g} (1-130, default 130): +100m
Command (M for help): W
The partition table has been altered!
Calling IOCTL () to re-read partition table.
Syncing disks.
[beigang@localhost~]$
5
View
[beigang@localhost~] $fdisk-L
Device Boot Start End Blocks Id System
/DEV/SDC1 1 112423+ Linux
6
Partition 2
[beigang@localhost~] $fdisk/DEV/SDC
N
P
2
15
+100m
W
7
View
[beigang@localhost~] $fdisk-L
Device Boot Start End Blocks Id System
/DEV/SDC1 1 112423+ Linux
/DEV/SDC2 112455 MB Linux
8
Add Physical volume
[beigang@localhost~] $pvcreate/DEV/SDC1
Writing physical volume data to disk "/DEV/SDC1"
Physical volume "/DEV/SDC1" successfully created
[beigang@localhost~] $pvcreate/DEV/SDC2
Writing physical volume data to disk "/DEV/SDC2"
Physical volume "/DEV/SDC2" successfully created
[beigang@localhost~]$
12
Create Logical Volume 1
[beigang@localhost~] $lvcreate-n lv1-l +50m VG1
Rounding up size to full physical extent 52.00 MiB
Logical volume "Lv1" created
[beigang@localhost~]$
13
Create Logical Volume 2 because it is an integer multiple of PE (4M), so there is no increase
[beigang@localhost~] $lvcreate-n lv2-l +60m VG1
Logical volume "Lv2" created
[beigang@localhost~]$
15
Format Lv1 The Times could not find the file,
[beigang@localhost~] $mkfs. ext3/dev/vg1/lv1
16
Mount Lv1
[beigang@localhost~] $mount/dev/vg1/lv1/seconddisk/
17
To generate a file on a folder Seconddisk
[beigang@localhost~] $touch/seconddisk/{1..9}.txt
[beigang@localhost~] $ll/seconddisk/
Total 23
-rw-r--r--. 1 Root 0 Nov 8 14:06 1.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 2.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 3.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 4.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 5.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 6.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 7.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 8.txt
-rw-r--r--. 1 Root 0 Nov 8 14:06 9.txt
DRWX------. 2 root 12288 Nov 8 13:51 Lost+found
[beigang@localhost~]$
18
Delete/dev/vg1/lv1,/dev/vg1/lv2
[beigang@localhost~] $lvremove/DEV/VG1/LV1
Can ' t remove open Logical Volume "LV1"
[beigang@localhost~] $umount/seconddisk/
[beigang@localhost~] $lvremove/DEV/VG1/LV1
Do your really want to remove active logical volume LV1? [y/n]: Y
Logical volume "LV1" successfully removed
[beigang@localhost~]$
[beigang@localhost~] $lvremove/dev/vg1/lv2
Do your really want to remove active logical volume LV2? [y/n]: Y
Logical volume "Lv2" successfully removed
19
Delete/DEV/VG1
[beigang@localhost~] $vgremove/DEV/VG1
Volume Group "VG1" successfully removed
[beigang@localhost~]$
It is worth saying that in the LVM, the file type does not have to be 8e,83, see the following ID.
[beigang@localhost~] $fdisk-L
Device Boot Start End Blocks Id System
/DEV/SDC1 1 112423+ Linux
/DEV/SDC2 112455 MB Linux
===================
===================
===================
The following is done on the basis of the completion of the 17th step above to Lv2 to do an extension.
1
First, Fdisk, get a/dev/sdc3.
View:
[Beigang@localhost~]$ fdisk-l | Grep/sdb
/DEV/SDC1 1 112423+ Linux
/DEV/SDC2 112455 MB Linux
/DEV/SDC3 112455 Linux
2
Increase PV Failure
[Beigang@localhost~]$ PVCREATE/DEV/SDC3
DEVICE/DEV/SDC3 not found (or ignored by filtering).
3
Load Disc partation:
[beigang@localhost~]$ partx-a/DEV/SDC
Blkpg:device or resource busy
Error adding partition 1
Blkpg:device or resource busy
Error adding partition 2
[beigang@localhost~]$ partx-a/DEV/SDC
Blkpg:device or resource busy
Error adding partition 1
Blkpg:device or resource busy
Error adding partition 2
Blkpg:device or resource busy
Error adding partition 3
4
Add PV:
[Beigang@localhost~]$ PVCREATE/DEV/SDC3
Writing physical volume data to disk "/DEV/SDC3"
Physical volume "/DEV/SDC3" successfully created
5
Extended SDB3 to VG:
[Beigang@localhost~]$ VGEXTEND/DEV/VG1/DEV/SDC3
Volume Group "VG1" successfully extended
[beigang@localhost~]$
9
Mount again to view, Lv2 only 51M, just extended has not really added
[Beigang@localhost~]$ mount/dev/vg1/lv2/mnt
[Beigang@localhost~]$ df-h
FileSystem Size Used Avail use% mounted on
/dev/mapper/vg1-lv2
51M 4.9M 43M 11%/mnt
[beigang@localhost~]$
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