1)
- 'lvm2' 패키지 설치 =========================================================
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo apt-get install lvm2
[sudo] password for sjw-lenovo:
패키지 목록을 읽는 중입니다... 완료
의존성 트리를 만드는 중입니다
상태 정보를 읽는 중입니다... 완료
lvm2 패키지는 이미 최신 버전입니다.
다음 패키지가 자동으로 설치되었지만 더 이상 필요하지 않습니다:
linux-headers-3.13.0-32 linux-headers-3.13.0-32-generic
linux-image-3.13.0-32-generic linux-image-extra-3.13.0-32-generic
Use 'apt-get autoremove' to remove them.
0개 업그레이드, 0개 새로 설치, 0개 제거 및 7개 업그레이드 안 함.
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
2) - '/dev/sdb1', '/dev/sdb2' 파일 시스템의 종류를 83(Linux) 에서 8e(Linux LVM)으로 변경 - 'fdisk' 실행하고 내부 명령 't' 를 사용하여 변경 - 변경한 뒤에는 반드시 'w' 로 저장해야함.
========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo fdisk /dev/sdb
Command (m for help): p
Disk /dev/sdb: 16.0 GB, 16008609792 bytes
64 heads, 32 sectors/track, 15267 cylinders, total 31266816 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 2048 1026047 512000 83 Linux
/dev/sdb2 1026048 2050047 512000 83 Linux
/dev/sdb3 2050048 3074047 512000 83 Linux
Command (m for help): t
Partition number (1-4): 1
Hex code (type L to list codes): 8e
Changed system type of partition 1 to 8e (Linux LVM)
Command (m for help): t
Partition number (1-4): 2
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/sdb: 16.0 GB, 16008609792 bytes
64 heads, 32 sectors/track, 15267 cylinders, total 31266816 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 2048 1026047 512000 8e Linux LVM
/dev/sdb2 1026048 2050047 512000 8e Linux LVM
/dev/sdb3 2050048 3074047 512000 83 Linux
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: 장치나 자원이 동작 중.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
3) - '/dev/sdb1', '/dev/sdb2' 에 PV 생성 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo pvcreate /dev/sdb1
Physical volume "/dev/sdb1" successfully created
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo pvcreate /dev/sdb2
Couldn't find device with uuid mnx0x9-gvi8-iE8f-cXVH-hvvj-LYn3-z3AOMs.
Can't initialize physical volume "/dev/sdb2" of volume group "grp1" without -ff
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo pvcreate -ㄹㄹ /dev/sdb2
pvcreate: 부적절한 옵션 -- '�'
Error during parsing of command line.
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo pvcreate -ff /dev/sdb2
Couldn't find device with uuid mnx0x9-gvi8-iE8f-cXVH-hvvj-LYn3-z3AOMs.
Really INITIALIZE physical volume "/dev/sdb2" of volume group "grp1" [y/n]? y
WARNING: Forcing physical volume creation on /dev/sdb2 of volume group "grp1"
Physical volume "/dev/sdb2" successfully created
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ =========================================================
4) - pvscan 명령으로 PV 상태 확인 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo pvscan
[sudo] password for sjw-lenovo:
Couldn't find device with uuid mnx0x9-gvi8-iE8f-cXVH-hvvj-LYn3-z3AOMs.
Couldn't find device with uuid 7XeUpB-r0n8-Y8WK-SccT-pBU6-62mU-CU7u2G.
PV unknown device VG grp1 lvm2 [496.00 MiB / 496.00 MiB free]
PV unknown device VG grp1 lvm2 [496.00 MiB / 496.00 MiB free]
PV /dev/sdb3 VG grp1 lvm2 [496.00 MiB / 496.00 MiB free]
PV /dev/sdb1 lvm2 [500.00 MiB]
PV /dev/sdb2 lvm2 [500.00 MiB]
Total: 5 [2.43 GiB] / in use: 3 [1.45 GiB] / in no VG: 2 [1000.00 MiB]
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
5) - 두 PV를 통합하여 VG를 생성(VG의 이름은 grp2) ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo vgcreate grp2 /dev/sdb1 /dev/sdb2
Volume group "grp2" successfully created
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ =========================================================
6) - 생성된 VG grp2 를 활성화 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo vgchange -a y grp2
0 logical volume(s) in volume group "grp2" now active
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
7) - 활성화된 VG grp2 의 상태를 vgdisply 명령으로 확인 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo vgdisplay -v grp2
Using volume group(s) on command line
Finding volume group "grp2"
--- Volume group ---
VG Name grp2
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 2
Act PV 2
VG Size 992.00 MiB
PE Size 4.00 MiB
Total PE 248
Alloc PE / Size 0 / 0
Free PE / Size 248 / 992.00 MiB
VG UUID dwH1KU-JCie-lKfn-m3N2-O5wW-qA2G-F1cEwV
--- Physical volumes ---
PV Name /dev/sdb1
PV UUID EBsPO9-Ffn5-OKYA-qO0i-qiFa-4x12-DIpkzp
PV Status allocatable
Total PE / Free PE 124 / 124
PV Name /dev/sdb2
PV UUID Ufg2tg-d2rq-GBPj-tX3Q-5vcm-brle-Ap10eN
PV Status allocatable
Total PE / Free PE 124 / 124
sjw-lenovo@sjwlenovo-Lenovo-U310:~$ =========================================================
8) - 7 번에서 확인한 결과, VG grp2 에는 PE가 총 248개 있음 - 이를 모두 합하여 하나의 LV를 생성 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo lvcreate -l 248 grp2 -n mylvm2
Logical volume "mylvm2" created
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
9) - 생성된 LV의 상태를 확인해보면 ACTIVE 상태임을 확인 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo lvscan
Couldn't find device with uuid mnx0x9-gvi8-iE8f-cXVH-hvvj-LYn3-z3AOMs.
Couldn't find device with uuid 7XeUpB-r0n8-Y8WK-SccT-pBU6-62mU-CU7u2G.
ACTIVE '/dev/grp2/mylvm2' [992.00 MiB] inherit
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
10) - LV mylvm2 에 ext4 파일 시스템을 생성 - 9번에서 LV의 장치명이 '/dev/grp2/mylvm2' 로 되어 있음을 주의 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo mke2fs -t ext4 /dev/grp2/mylvm2
mke2fs 1.42.9 (4-Feb-2014)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
63488 inodes, 253952 blocks
12697 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=260046848
8 block groups
32768 blocks per group, 32768 fragments per group
7936 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
11)
- VG의 상태를 확인하여 LV의 정보가 수정되었는지 확인 ========================================================= sjw-lenovo@sjwlenovo-Lenovo-U310:~$ sudo vgdisplay -v grp2
Using volume group(s) on command line
Finding volume group "grp2"
--- Volume group ---
VG Name grp2
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 2
Act PV 2
VG Size 992.00 MiB
PE Size 4.00 MiB
Total PE 248
Alloc PE / Size 248 / 992.00 MiB
Free PE / Size 0 / 0
VG UUID dwH1KU-JCie-lKfn-m3N2-O5wW-qA2G-F1cEwV
--- Logical volume ---
LV Path /dev/grp2/mylvm2
LV Name mylvm2
VG Name grp2
LV UUID v5II9v-45dj-Jw1T-xI8n-2PvQ-319S-fPSWRO
LV Write Access read/write
LV Creation host, time sjwlenovo-Lenovo-U310, 2015-04-12 14:29:41 +0900
LV Status available
# open 0
LV Size 992.00 MiB
Current LE 248
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Physical volumes ---
PV Name /dev/sdb1
PV UUID EBsPO9-Ffn5-OKYA-qO0i-qiFa-4x12-DIpkzp
PV Status allocatable
Total PE / Free PE 124 / 0
PV Name /dev/sdb2
PV UUID Ufg2tg-d2rq-GBPj-tX3Q-5vcm-brle-Ap10eN
PV Status allocatable
Total PE / Free PE 124 / 0
sjw-lenovo@sjwlenovo-Lenovo-U310:~$
=========================================================
12) - LV를 '/mnt/lvm' 디렉터리에 마운트하고 파일을 복사(테스트 용으로~)
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