Extindere Disk
Extindere disk live in Ubuntu 2X.04 LTS
Cu VM pornit verificam disk-ul in scop cu ce partitii, VG si LV se prezinta:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
......
sdb 8:16 0 10G 0 disk
└─sdb1 8:17 0 10G 0 part
├─vg_wiki-lv_wiki_1 252:1 0 6G 0 lvm /wiki/lv1
└─vg_wiki-lv_wiki_2 252:2 0 4G 0 lvm /wiki/lv2
......
Extindere HDD
Procedam la extinderea disk-ului in hypervisor (ex Proxmox VM):
Fara a restarta masina virtuala este nevoie de rescanarea disk-ului pentru a colecta informatiile legate de noua capacitate:
# echo 1 > /sys/block/sdb/device/rescan
Apoi ne asiguram ca OS-ul scanat disk-ul:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
......
sdb 8:16 0 15G 0 disk
└─sdb1 8:17 0 10G 0 part
├─vg_wiki-lv_wiki_1 252:1 0 6G 0 lvm /wiki/lv1
└─vg_wiki-lv_wiki_2 252:2 0 4G 0 lvm /wiki/lv2
......
Extindere Partitie
Dupe ce a fost extins disk-ul fizic trebuie extinsa si partitia aflata pe respectivul disk:
# growpart /dev/sdb 1
CHANGED: partition=1 start=2048 old: size=20969472 end=20971519 new: size=31455199 end=31457246
# pvresize /dev/sdb1
Physical volume "/dev/sdb1" changed
1 physical volume(s) resized or updated / 0 physical volume(s) not resized
Apoi ne asiguram ca extinderea se reflecta in OS:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
......
sdb 8:16 0 15G 0 disk
└─sdb1 8:17 0 15G 0 part
├─vg_wiki-lv_wiki_1 252:1 0 6G 0 lvm /wiki/lv1
└─vg_wiki-lv_wiki_2 252:2 0 4G 0 lvm /wiki/lv2
......
Extindere Logical Volume
Volume group-ul (VG) vg_wiki a fost creeat peste intreaga partitie /dev/sdb1 iar odata cu extinderea partitiei s-a exting si VG-ul
# vgdisplay vg_wiki
--- Volume group ---
VG Name vg_wiki
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size <15.00 GiB
PE Size 4.00 MiB
Total PE 3839
Alloc PE / Size 2559 / <10.00 GiB
Free PE / Size 1280 / 5.00 GiB
VG UUID LvZwAo-9K3I-Qdvw-x39q-kbGT-9IAn-s7e2Nb
Pentru a vedea informatiile volumelor logice rulam:
# lvdisplay
--- Logical volume ---
LV Path /dev/vg_wiki/lv_wiki_1
LV Name lv_wiki_1
VG Name vg_wiki
LV UUID 4sOD3P-pYEi-S0Tf-OaYb-83B3-NhCM-lqLSdG
LV Write Access read/write
LV Creation host, time docktest, 2025-06-27 11:47:34 +0000
LV Status available
# open 1
LV Size 6.00 GiB
Current LE 1536
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
--- Logical volume ---
LV Path /dev/vg_wiki/lv_wiki_2
LV Name lv_wiki_2
VG Name vg_wiki
LV UUID 4UMXIA-7Ftj-UPRf-bccb-Iltw-EoJl-h3U0iZ
LV Write Access read/write
LV Creation host, time docktest, 2025-06-27 11:47:43 +0000
LV Status available
# open 1
LV Size <4.00 GiB
Current LE 1023
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
Pentru a vedea informatiile strict necesare in acest caz putem rula: