1. 개요
LVM 생성 및 용량 추가
2. 버전
Rocky-8.6
3. 설명
3-1. LVM(Logical Volume Manager) 이란?
LVM은 스토리지 장치의 물리적 볼륨을 논리적 볼륨으로 관리할 수 있게 해주는 시스템
필요에 따라 크기를 조절하거나 디스크를 추가
3-2. PV(Physical Volume) 이란?
PV는 LVM에서 가장 기본적인 스토리지 단위
HDD, SSD 또는 파티션 등을 물리적 볼륨으로 변환하여 LVM 시스템에 포함할 수 있음
PV는 Volume Group을 생성하기 위한 기본 블록
3-3. VG(Volume Group) 이란?
볼륨 그룹(VG)은 하나 이상의 물리적 볼륨(PV)을 결합하여 단일 스토리지 풀을 만드는 것
여러 개의 PV를 하나의 VG로 묶어서 사용하면, VG 내에서 논리적 볼륨을 생성하고 관리할 수 있음
VG는 LVM의 중앙 집중식 관리 단위로, 스토리지 공간을 보다 유연하게 활용할 수 있게 해줌
3-4. LV(Logical Volume) 이란?
논리적 볼륨(LV)은 사용자가 실제로 데이터를 저장하고 사용할 수 있는 LVM의 최종 단위
논리적 볼륨은 볼륨 그룹(VG)에서 필요한 크기만큼 할당받아 생성
LV는 파일 시스템을 생성하고 마운트하여 일반 디스크 파티션처럼 사용할 수 있음
3-5. PE(Physical Extent) 이란?
물리적 볼륨(PV)을 관리하는 데 사용되는 가장 작은 단위
고정된 크기의 블록으로, 물리적 볼륨의 전체 크기를 작은 단위로 나눔
논리적 볼륨(LV)에서 사용할 수 있는 할당 단위로 활용
4. 참고 링크
4-1. [Rocky] Rocky-9.2 LVM으로 설치
5. LVM 생성
5-1. DISK 확인
# fdisk -l
Disk /dev/sdc: 256 GiB, 274877906944 bytes, 536870912 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 /dev/sdb: 256 GiB, 274877906944 bytes, 536870912 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 /dev/sda: 256 GiB, 274877906944 bytes, 536870912 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
Disklabel type: gpt
Disk identifier: 272C1634-ABD6-4631-9D29-96B9F6834D06
Device Start End Sectors Size Type
/dev/sda1 2048 2099199 2097152 1G EFI System
/dev/sda2 2099200 10487807 8388608 4G Linux swap
/dev/sda3 10487808 536868863 526381056 251G Linux filesystem
Disk /dev/sdd: 256 GiB, 274877906944 bytes, 536870912 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 /dev/sde: 256 GiB, 274877906944 bytes, 536870912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes5-2. DISK 설정
# fdisk /dev/sdb
5-2-1. Partition 생성
$ Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
$ Select (default p): p
$ Partition number (1-4, default 1): ${Enter}
$ First sector (2048-536870911, default 2048):${Enter}
$ Last sector, +sectors or +size{K,M,G,T,P} (2048-536870911, default 536870911): ${Enter}
Created a new partition 1 of type 'Linux' and of size 256 GiB.5-2-2. Type 변경
$ Command (m for help): t
$ Hex code (type L to list all codes): L
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 3c PartitionMagic 84 OS/2 hidden or c6 DRDOS/sec (FAT-
4 FAT16 <32M 40 Venix 80286 85 Linux extended c7 Syrinx
5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FS data
6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de Dell Utility
8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt
9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access
a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi ea Rufus alignment
e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD eb BeOS fs
f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ee GPT
10 OPUS 55 EZ-Drive a7 NeXTSTEP ef EFI (FAT-12/16/
11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f0 Linux/PA-RISC b
12 Compaq diagnost 5c Priam Edisk a9 NetBSD f1 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f4 SpeedStor
16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ f2 DOS secondary
17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fb VMware VMFS
18 AST SmartSleep 65 Novell Netware b8 BSDI swap fc VMware VMKCORE
1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fd Linux raid auto
1c Hidden W95 FAT3 75 PC/IX bc Acronis FAT32 L fe LANstep
1e Hidden W95 FAT1 80 Old Minix be Solaris boot ff BBT$ Hex code (type L to list all codes): 8e
$ Command (m for help): p
Disk /dev/sdb: 256 GiB, 274877906944 bytes, 536870912 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
Disklabel type: dos
Disk identifier: 0x72b3be50
Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 536870911 536868864 256G 8e Linux LVM5-2-3. 저장
$ Command (m for help): wq
5-3. PV 생성
# pvcreate /dev/sdb1
Physical volume "/dev/sdb1" successfully created.# pvdisplay
"/dev/sdb1" is a new physical volume of "<256.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sdb1
VG Name
PV Size <256.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID MZi3Qw-1jYS-zBG1-2cIq-y5Xd-lj4d-PflfxY5-4. VG 생성
# vgcreate vg_file /dev/sdb1
Volume group "vg_file" successfully created# vgdisplay -v
--- Volume group ---
VG Name vg_file
System ID
Format lvm2
Metadata Areas 1
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 1
Act PV 1
VG Size <256.00 GiB
PE Size 4.00 MiB
Total PE 65535
Alloc PE / Size 0 / 0
Free PE / Size 65535 / <256.00 GiB
VG UUID weItuh-ZsDS-WHb8-60DY-ih20-5Hof-NSWzar
--- Physical volumes ---
PV Name /dev/sdb1
PV UUID MZi3Qw-1jYS-zBG1-2cIq-y5Xd-lj4d-PflfxY
PV Status allocatable
Total PE / Free PE 65535 / 655355-5. LV 생성
# lvcreate -L 100GB vg_file -n lv_file
Logical volume "lv_file" created.# lvdisplay
--- Logical volume ---
LV Path /dev/vg_file/lv_file
LV Name lv_file
VG Name vg_file
LV UUID 283LpD-4n2l-AYdv-y1mV-PyI7-6f3s-UUnHrh
LV Write Access read/write
LV Creation host, time FILE01, 2024-03-13 15:35:37 +0900
LV Status available
# open 0
LV Size 100.00 GiB
Current LE 25600
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:05-6. 포멧
# mkfs.xfs /dev/vg_file/lv_file
5-7 확인
# blkid
/dev/mapper/vg_file-lv_file: UUID="577ffddf-1275-4bc3-9224-1bbfe431e434" BLOCK_SIZE="512" TYPE="xfs"# mount /dev/mapper/vg_file-lv_file /mnt/
# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg_file-lv_file xfs 100G 746M 100G 1% /mnt6. LVM 추가
6-1. PV 추가
# pvcreate /dev/sdc1
Physical volume "/dev/sdc1" successfully created.# pvdisplay
--- Physical volume ---
PV Name /dev/sdb1
VG Name vg_file
PV Size <256.00 GiB / not usable 3.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 65535
Free PE 39935
Allocated PE 25600
PV UUID MZi3Qw-1jYS-zBG1-2cIq-y5Xd-lj4d-PflfxY
"/dev/sdc1" is a new physical volume of "<256.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sdc1
VG Name
PV Size <256.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID 3qpPIW-2uU2-39J4-7pIi-nJo3-tAsC-odv54y6-2. VG 추가
# vgextend vg_file /dev/sdc1
Volume group "vg_file" successfully extended# vgdisplay
--- Volume group ---
VG Name vg_file
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 2
Act PV 2
VG Size 511.99 GiB
PE Size 4.00 MiB
Total PE 131070
Alloc PE / Size 25600 / 100.00 GiB
Free PE / Size 105470 / 411.99 GiB
VG UUID weItuh-ZsDS-WHb8-60DY-ih20-5Hof-NSWzar6-3. LV 추가
# lvextend /dev/vg_file/lv_file -l +10000
Size of logical volume vg_file/lv_file changed from 100.00 GiB (25600 extents) to 139.06 GiB (35600 extents).
Logical volume vg_file/lv_file successfully resized.# lvdisplay
--- Logical volume ---
LV Path /dev/vg_file/lv_file
LV Name lv_file
VG Name vg_file
LV UUID 283LpD-4n2l-AYdv-y1mV-PyI7-6f3s-UUnHrh
LV Write Access read/write
LV Creation host, time FILE01, 2024-03-13 15:35:37 +0900
LV Status available
# open 1
LV Size 139.06 GiB
Current LE 35600
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:06-4. 적용
6-4-1. 파일 시스템이 XFS인 경우
# xfs_growfs /dev/mapper/vg_file-lv_file
6-4-2. 파일 시스템이 XFS가 아닌 경우
# resize2fs /dev/vg_file/lv_file
6-5. 확인
# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg_file-lv_file xfs 140G 1.1G 139G 1% /mnt7. Parted
용량이 2TB 이상인 경우 사용
7-1. Parted 실행
# parted /dev/sdd
7-2. 파티션 설정
$ (parted) mkpart
$ Partition name? []? ${Enter}
$ File system type? [ext2]? xfs
$ Start? 1
$ End? -1
7-3. 생성 파티션 확인
$ (parted) p
Model: VMware Virtual disk (scsi)
Disk /dev/sdd: 275GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 275GB 275GB xfs7-4. LVM 변경
$ (parted) set 1 lvm on
7-5. LVM 변경 확인
(parted) p
Model: VMware Virtual disk (scsi)
Disk /dev/sdd: 275GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 275GB 275GB xfs lvm7-6. Parted 종료
(parted) q