- 登录到XenServer。
- 修改虚拟机磁盘大小
修改storage 磁盘大小 - 启动虚拟机
- 修改分区大小
Hex code (type L to list codes): 8e
Changed system type of partition 2 to 8e (Linux LVM)
Command (m for help): p
Disk /dev/xvda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/xvda1 * 1 13 104391 83 Linux
/dev/xvda2 14 5221 41833260 8e Linux LVM
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks. - 重启虚拟机：reboot
- 调整PV大小
pvs
PV VG Fmt Attr PSize PFree
/dev/xvda2 VolGroup00 lvm2 a- 19.88G 0
pvresize -v /dev/xvda2
Using physical volume(s) on command line
Archiving volume group "VolGroup00" metadata (seqno 3).
Resizing physical volume /dev/xvda2 from 636 to 1276 extents.
Resizing volume "/dev/xvda2" to 83666136 sectors.
Updating physical volume "/dev/xvda2"
Creating volume group backup "/etc/lvm/backup/VolGroup00" (seqno 4).
Physical volume "/dev/xvda2" changed
1 physical volume(s) resized / 0 physical volume(s) not resized
pvs
PV VG Fmt Attr PSize PFree
/dev/xvda2 VolGroup00 lvm2 a- 39.88G 20.00G - 调整LV大小
lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
LogVol00 VolGroup00 -wi-ao 17.84G
LogVol01 VolGroup00 -wi-ao 2.03G
lvextend -l +100%FREE /dev/VolGroup00/LogVol00
Extending logical volume LogVol00 to 37.84 GB
Logical volume LogVol00 successfully resized
lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
LogVol00 VolGroup00 -wi-ao 37.84G
LogVol01 VolGroup00 -wi-ao 2.03G - 调整分区大小
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
5.7G 4.5G 950M 83% /
/dev/xvda1 99M 22M 73M 24% /boot
tmpfs 2.0G 0 2.0G 0% /dev/shm
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 9920512 (4k) blocks.
The filesystem on /dev/mapper/VolGroup00-LogVol00 is now 9920512 blocks long.
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
37G 4.5G 31G 13% /
/dev/xvda1 99M 22M 73M 24% /boot
tmpfs 2.0G 0 2.0G 0% /dev/shm
任务完成 遇到的问题
linux系统为centos7 时， 用 resize2fs 命令出现报错 resize2fs: Bad magic number in super-block while trying to open
xfs_growfs /dev/root_vg/root 用 xfs_growfs 代替命令 resize2fs