首先调整磁盘大小为60G
注意: 如果虚拟机做快照是无法调节置备大小的,要先删除快照才能调整
点确定后,重启虚拟机OS [iyunv@download1 ~] shutdown -r now
[iyunv@download1 ~]fdisk -l
Disk /dev/sda: 64.4 GB, 64424509440 bytes 255 heads, 63 sectors/track, 7832 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 2610 20860402+ 8e Linux LVM [iyunv@download1 ~]# df -hl 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/VolGroup00-LogVol00 19G 12G 6.4G 64% / /dev/sda1 99M 20M 75M 21% /boot tmpfs 2.0G 0 2.0G 0% /dev/shm
[iyunv@download1 ~]# fdisk /dev/sda
The number of cylinders for this disk is set to 7832. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 3 First cylinder (2611-7832, default 2611): 默认回车 Using default value 2611 Last cylinder or +size or +sizeM or +sizeK (2611-7832, default 7832):默认回车 Using default value 7832
Command (m for help): t Partition number (1-4): 3 Hex code (type L to list codes): 8e Changed system type of partition 3 to 8e (Linux LVM)
Command (m for help): p
Disk /dev/sda: 64.4 GB, 64424509440 bytes 255 heads, 63 sectors/track, 7832 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 2610 20860402+ 8e Linux LVM /dev/sda3 2611 7832 41945715 8e Linux LVM
Command (m for help): w 保存退出 The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: 设备或资源忙. The kernel still uses the old table. The new table will be used at the next reboot. Syncing disks.
重启虚拟机OS [iyunv@download1 ~]# shutdown -r now [iyunv@download1 ~]fdisk -l Disk /dev/sda: 64.4 GB, 64424509440 bytes 255 heads, 63 sectors/track, 7832 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 2610 20860402+ 8e Linux LVM /dev/sda3 2611 7832 41945715 8e Linux LVM [iyunv@download1 ~]# df -hl 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/VolGroup00-LogVol00 19G 12G 6.4G 64% / /dev/sda1 99M 20M 75M 21% /boot tmpfs 2.0G 0 2.0G 0% /dev/shm [iyunv@download1 ~]# df -T /dev/sda1 文件系统 类型 1K-块 已用 可用 已用% 挂载点 /dev/sda1 ext3 101086 19487 76380 21% /boot
格式化/dev/sda3 [iyunv@download1 ~]# mkfs.ext3 /dev/sda3 mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 5248992 inodes, 10486428 blocks 524321 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 321 block groups 32768 blocks per group, 32768 fragments per group 16352 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 28 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. 创建PV [iyunv@download1 ~]# pvcreate /dev/sda3 Physical volume "/dev/sda3" successfully created 查看PV状态 [iyunv@download1 ~]# pvdisplay /dev/hdc: open failed: 找不到介质 --- Physical volume --- PV Name /dev/sda2 VG Name VolGroup00 PV Size 19.89 GB / not usable 19.49 MB Allocatable yes (but full) PE Size (KByte) 32768 Total PE 636 Free PE 0 Allocated PE 636 PV UUID KjvMTJ-8laN-yuwe-N0oA-jtsF-Z0oc-CnzOUX
"/dev/sda3" is a new physical volume of "40.00 GB" --- NEW Physical volume --- PV Name /dev/sda3 VG Name PV Size 40.00 GB Allocatable NO PE Size (KByte) 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID J9yLqC-vpK8-jiwd-5STl-kbRT-BGMg-UB6uPk
[iyunv@download1 ~]# vgdisplay /dev/hdc: open failed: 找不到介质 --- Volume group --- VG Name VolGroup00 System ID Format lvm2 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 19.88 GB PE Size 32.00 MB Total PE 636 Alloc PE / Size 636 / 19.88 GB Free PE / Size 0 / 0 VG UUID V6H9Dr-e1mb-7E3v-uEgv-UyYX-da9Q-fD8VVp
刚创建的PV加入相应的VG [iyunv@download1 ~]# vgextend VolGroup00 /dev/sda3 /dev/hdc: open failed: 找不到介质 Volume group "VolGroup00" successfully extended
[iyunv@download1 ~]# vgdisplay /dev/hdc: open failed: 找不到介质 --- Volume group --- VG Name VolGroup00 System ID Format lvm2 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 59.88 GB PE Size 32.00 MB Total PE 1916 Alloc PE / Size 636 / 19.88 GB Free PE / Size 1280 / 40.00 GB VG UUID V6H9Dr-e1mb-7E3v-uEgv-UyYX-da9Q-fD8VVp
查看LV状态 [iyunv@download1 ~]# lvdisplay /dev/hdc: open failed: 找不到介质 --- Logical volume --- LV Name /dev/VolGroup00/LogVol00 VG Name VolGroup00 LV UUID sSmNj2-Gw4B-hYE2-9nUw-ybJV-6Yxa-DU4VJt LV Write Access read/write LV Status available # open 1 LV Size 19.12 GB Current LE 612 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0
--- Logical volume --- LV Name /dev/VolGroup00/LogVol01 VG Name VolGroup00 LV UUID LIrXiG-3IiO-LhjI-o3yN-vI5T-Yamm-FxD31j LV Write Access read/write LV Status available # open 1 LV Size 768.00 MB Current LE 24 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1
========================================================= [iyunv@download1 ~]# lvextend -l +2559 /dev/VolGroup00/ 勿回车 LogVol00 LogVol01 注意!不知道选哪个,通过以下命令获取可以得到 [iyunv@download1 ~]# df -hl 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/VolGroup00-LogVol00 19G 12G 6.4G 64% / /dev/sda1 99M 20M 75M 21% /boot tmpfs 2.0G 0 2.0G 0% /dev/shm ========================================================= 为/dev/VolGroup00/LogVol00增加容量 [iyunv@download1 ~]# lvextend -l +2559 /dev/VolGroup00/LogVol00 /dev/hdc: open failed: 找不到介质 Extending logical volume LogVol00 to 99.09 GB Insufficient free space: 2559 extents needed, but only 1280 available
[iyunv@download1 ~]# lvextend -l +1280 /dev/VolGroup00/LogVol00 /dev/hdc: open failed: 找不到介质 Extending logical volume LogVol00 to 59.12 GB Logical volume LogVol00 successfully resized
用 resize2fs 调整文件系统大小 [iyunv@download1 ~]# 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 15499264 (4k) blocks. The filesystem on /dev/mapper/VolGroup00-LogVol00 is now 15499264 blocks long. [iyunv@download1 ~]# df -hl 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/VolGroup00-LogVol00 58G 12G 44G 21% / /dev/sda1 99M 20M 75M 21% /boot tmpfs 2.0G 0 2.0G 0% /dev/shm | 
QQ群⑧：
窥视卡
雷达卡
发表于 2012-11-6 17:12:50
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
千斤顶
显身卡