VirtualBOX 에서 테스트 해봤습니다. 잘되네요^^
0.환경
- CentOS 5.6(VirtualBOX)
- 8GB SATA Disk 2EA 추가
1. 추가 Disk 확인(/dev/sdb, /dev/sdc)
[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 78 522112+ 82 Linux swap / Solaris
/dev/sda3 79 1044 7759395 83 Linux
Disk /dev/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdc doesn't contain a valid partition table
2. pv 확인
[root@Localhost ~]# pvscan
No matching physical volumes found
3. pv 만들기 및 확인
[root@Localhost ~]# pvcreate /dev/sdb /dev/sdc
Physical volume "/dev/sdb" successfully created
Physical volume "/dev/sdc" successfully created
[root@Localhost ~]# pvscan
PV /dev/sdb lvm2 [8.00 GB]
PV /dev/sdc lvm2 [8.00 GB]
Total: 2 [16.00 GB] / in use: 0 [0 ] / in no VG: 2 [16.00 GB]
4. vg 만들기(예,myVG)
[root@Localhost ~]# vgcreate myVG /dev/sdb /dev/sdc
Volume group "myVG" successfully created
5. lv 만들기(1G)
[root@Localhost ~]# lvcreate -L 1000M myVG
Logical volume "lvol0" created
6. lv 정보 확인
[root@Localhost ~]# lvdisplay
--- Logical volume ---
LV Name /dev/myVG/lvol0
VG Name myVG
LV UUID PTi8MR-Ie8f-UP8Z-HbXL-9EZ0-Xa3r-UwApyi
LV Write Access read/write
LV Status available
# open 0
LV Size 1000.00 MB
Current LE 250
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--> 장치 이름 : /dev/myVG/lvol0
7. ext3로 포맷
[root@Localhost ~]# mkfs.ext3 /dev/myVG/lvol0
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
128000 inodes, 256000 blocks
12800 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=264241152
8 block groups
32768 blocks per group, 32768 fragments per group
16000 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 37 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
8. tune2fs 점검 없음 설정(점검간격 0(zero), 점검없음(-1)
[root@Localhost ~]# tune2fs -i 0 -c -1 /dev/myVG/lvol0
tune2fs 1.39 (29-May-2006)
Setting maximal mount count to -1
Setting interval between checks to 0 seconds
9. mount 디렉토리 만들기
[root@Localhost ~]# mkdir /mnt/ftp
10. mount 및 확인
[root@Localhost ~]# mount /dev/myVG/lvol0 /mnt/ftp
[root@Localhost ~]# mount | grep ftp
/dev/mapper/myVG-lvol0 on /mnt/ftp type ext3 (rw)
[root@Localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 7.2G 4.8G 2.1G 71% /
/dev/sda1 99M 35M 59M 38% /boot
tmpfs 125M 0 125M 0% /dev/shm
/dev/mapper/myVG-lvol0
985M 18M 918M 2% /mnt/ftp
<Volume 관리>
1. 볼륨 크기 키우기(예, +500M)
[root@Localhost ~]# lvextend -L+500M /dev/myVG/lvol0 /dev/sdb /dev/sdc
Extending logical volume lvol0 to 1.46 GB
Logical volume lvol0 successfully resized
2. 확인(볼륨만 커진 상태임, 변화없음)
[root@Localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 7.2G 4.8G 2.1G 71% /
/dev/sda1 99M 35M 59M 38% /boot
tmpfs 125M 0 125M 0% /dev/shm
/dev/mapper/myVG-lvol0
985M 18M 918M 2% /mnt/ftp
3. 파일시스템 크기 조절
[root@Localhost ~]# resize2fs /dev/myVG/lvol0
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/myVG/lvol0 is mounted on /mnt/ftp; on-line resizing required
Performing an on-line resize of /dev/myVG/lvol0 to 384000 (4k) blocks.
The filesystem on /dev/myVG/lvol0 is now 384000 blocks long.
4. 확인(크기가 늘어났음)
[root@Localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 7.2G 4.8G 2.1G 71% /
/dev/sda1 99M 35M 59M 38% /boot
tmpfs 125M 0 125M 0% /dev/shm
/dev/mapper/myVG-lvol0
1.5G 18M 1.4G 2% /mnt/ftp
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