[root@localhost ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
5.7G 1.8G 3.7G 32% /
/dev/sda1 99M 12M 82M 13% /boot
tmpfs 252M 0 252M 0% /dev/shm
[root@localhost ~]# fdisk -l
Disk /dev/sda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1044 8281507+ 8e Linux
Disk /dev/sdb: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table
[root@localhost ~]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-261, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-261, default 261):
Using default value 261
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 8e
Changed system type of partition 1 to 8e (Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
5.7G 1.8G 3.7G 32% /
/dev/sda1 99M 12M 82M 13% /boot
tmpfs 252M 0 252M 0% /dev/shm
[root@localhost ~]# fdisk -l
Disk /dev/sda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1044 8281507+ 8e Linux
Disk /dev/sdb: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 261 2096451 8e Linux
[root@localhost ~]# pvcreate /dev/sdb1
Physical volume "/dev/sdb1" successfully created
[root@localhost ~]# vgdisplay
/dev/hdc: open failed: 找不到介质
--- Volume group ---
VG Name VolGroup00
System ID
Format
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.88 GB
PE Size 32.00 MB
Total PE 252
Alloc PE / Size 252 / 7.88 GB
Free PE / Size 0 / 0
VG UUID Fq9Gxs-9zS7-f0Y3-dhNB-Haqr-rH8d-lJqD84
[root@localhost ~]# vgextend VolGroup00 /dev/sdb1
/dev/hdc: open failed: 找不到介质
Volume group "VolGroup00" successfully extended
[root@localhost ~]# vgdisplay
--- Volume group ---
VG Name VolGroup00
System ID
Format
Metadata Areas 2
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 2
Act PV 2
VG Size 9.84 GB
PE Size 32.00 MB
Total PE 315
Alloc PE / Size 252 / 7.88 GB
Free PE / Size 63 / 1.97 GB
VG UUID Fq9Gxs-9zS7-f0Y3-dhNB-Haqr-rH8d-lJqD84
[root@localhost ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
5.7G 1.8G 3.7G 32% /
/dev/sda1 99M 12M 82M 13% /boot
tmpfs 252M 0 252M 0% /dev/shm
[root@localhost ~]# lvresize -L +1.97G /dev//VolGroup00/LogVol00
Rounding up size to full physical extent 2.00 GB
Extending logical volume LogVol00 to 7.88 GB
Insufficient free space: 64 extents needed, but only 63 available
[root@localhost ~]# lvresize -L +1.96G /dev//VolGroup00/LogVol00
Rounding up size to full physical extent 1.97 GB
Extending logical volume LogVol00 to 7.84 GB
Logical volume LogVol00 successfully resized
[root@localhost ~]# vgdisplay
--- Volume group ---
VG Name VolGroup00
System ID
Format
Metadata Areas 2
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 2
Act PV 2
VG Size 9.84 GB
PE Size 32.00 MB
Total PE 315
Alloc PE / Size 315 / 9.84 GB
Free PE / Size 0 / 0
VG UUID Fq9Gxs-9zS7-f0Y3-dhNB-Haqr-rH8d-lJqD84
[root@localhost ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
5.7G 1.8G 3.7G 32% /
/dev/sda1 99M 12M 82M 13% /boot
tmpfs 252M 0 252M 0% /dev/shm
[root@localhost ~]# resize2fs /dev/mapper/VolGroup00-LogVol00
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/mapper/VolGroup00-LogVol00 is mounted on /; on-line resizing required
Performing an on-line resize of /dev/mapper/VolGroup00-LogVol00 to 2056192 (4k) blocks.
The filesystem on /dev/mapper/VolGroup00-LogVol00 is now 2056192 blocks long.
[root@localhost ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
7.6G 1.8G 5.5G 24% /
/dev/sda1 99M 12M 82M 13% /boot
tmpfs 252M 0 252M 0% /dev/shm
[root@localhost ~]# reboot
Broadcast message from root (pts/0) (Mon May 10 22:45:52 2010):
The system is going down for reboot NOW!
