kvm虚拟机，当前数据库正常运行但数据磁盘空间不足，客户已新挂了一个1T磁盘(/dev/sdf)
[root@db ~]# df -h|grep oracledata
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/datavg-datavol
197G 187G 0 100% /oracledata
[root@db ~]# fdisk /dev/sdf
Disk /dev/sdf: 1099.5 GB, 1099511627776 bytes
255 heads, 63 sectors/track, 133674 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x4242b110
Device Boot Start End Blocks Id System
Command (m for help): n
Command action
e extended
p primary partition (1-4) p
Partition number (1-4): 1
First cylinder (1-133674, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-133674, default 133674):
Using default value 133674
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 LVM)
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@db ~]# fdisk -l /dev/sdf
Disk /dev/sdf: 1099.5 GB, 1099511627776 bytes
255 heads, 63 sectors/track, 133674 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x4242b110
Device Boot Start End Blocks Id System
/dev/sdf1 1 133674 1073736373+ 8e Linux LVM
[root@db ~]# vgs|grep datavg
VG #PV #LV #SN Attr VSize VFree
datavg 1 1 0 wz--n- 200.00g 0
[root@db ~]# pvcreate /dev/sdf1
Physical volume "/dev/sdf1" successfully created
[root@db ~]# pvdisplay
"/dev/sdf1" is a new physical volume of "1023.99 GiB"
--- NEW Physical volume ---
PV Name /dev/sdf1
VG Name
PV Size 1023.99 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID UgcLg6-JiFB-RjAz-3Xah-zxhO-fg5f-wnYARO
[root@db ~]# vgextend datavg /dev/sdf1
Volume group "datavg" successfully extended
[root@db ~]# vgs|grep datavg
VG #PV #LV #SN Attr VSize VFree
datavg 2 1 0 wz--n- 1.20t 1023.99g
[root@db ~]# lvresize -l +100%FREE /dev/datavg/datavol
Size of logical volume datavg/datavol changed from 200.00 GiB (51199 extents) to 1.20 TiB (313341 extents).
Logical volume datavol successfully resized.
[root@db ~]# resize2fs /dev/datavg/datavol
resize2fs 1.43-WIP (20-Jun-2013)
Filesystem at /dev/datavg/datavol is mounted on /oracledata; on-line resizing required
old_desc_blocks = 13, new_desc_blocks = 77
The filesystem on /dev/datavg/datavol is now 320861184 blocks long.
[root@db ~]# df -h|grep oracledata
/dev/mapper/datavg-datavol
1.2T 187G 967G 17% /oracledata