[Linux] ๋””์Šคํฌ ํŒŒํ‹ฐ์…˜ ํฌ๊ธฐ(์šฉ๋Ÿ‰) ํ™•์žฅ ๋ฐฉ๋ฒ•

2025. 4. 28. 10:14ยท๐ŸŒŒ OS/Linux-๋ฆฌ๋ˆ…์Šค
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Ubuntu 22.04.4๋ฅผ VMware์—์„œ ์‚ฌ์šฉ์ค‘์ด์—ˆ๋Š”๋ฐ, ๋””์Šคํฌ ์šฉ๋Ÿ‰์ด ๊ฝ‰์ฐจ ์‚ฌ์šฉ์ด ๋ถˆ๊ฐ€ํ•œ ํ˜„์ƒ์ด ๋ฐœ์ƒํ–ˆ๋‹ค.

$ df -h
Filesystem                         Size  Used Avail Use% Mounted on
tmpfs                              388M  1.6M  387M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv   39G   39G     0 100% /
tmpfs                              1.9G     0  1.9G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
/dev/sda2                          2.0G  126M  1.7G   7% /boot
tmpfs                              388M  4.0K  388M   1% /run/user/1000
$ lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
loop0                       7:0    0   87M  1 loop /snap/lxd/27037
loop1                       7:1    0 63.9M  1 loop /snap/core20/2105
loop2                       7:2    0 89.4M  1 loop /snap/lxd/31333
loop3                       7:3    0 40.4M  1 loop /snap/snapd/20671
loop4                       7:4    0 44.4M  1 loop /snap/snapd/23771
sda                         8:0    0  150G  0 disk 
โ”œโ”€sda1                      8:1    0    1M  0 part 
โ”œโ”€sda2                      8:2    0    2G  0 part /boot
โ””โ”€sda3                      8:3    0   78G  0 part 
  โ””โ”€ubuntu--vg-ubuntu--lv 253:0    0   39G  0 lvm  /
sr0                        11:0    1    2G  0 rom

 

๋””์Šคํฌ ์šฉ๋Ÿ‰ ํ™•์ธ

VM ํ•˜๋“œ๋ฅผ 80G๋กœ ์‚ฌ์šฉํ•˜๋‹ค 150G๋กœ ํ™•์žฅํ–ˆ์ง€๋งŒ, df -h ๋ช…๋ น ๊ฒฐ๊ณผ ๋ฃจํŠธ ํŒŒํ‹ฐ์…˜(/)์€ 39G๋กœ ์žกํ˜€ ์žˆ๊ณ  Use%(์‚ฌ์šฉ๋Ÿ‰)์ด 100%์ธ ์ƒํ™ฉ์ด๋‹ค. → OS ๋ ˆ๋ฒจ์—์„œ ๋””์Šคํฌ ํ™•์žฅ์„ ์ธ์ง€ํ•˜์ง€ ๋ชปํ•˜๊ณ  ์žˆ๋Š” ์ƒํ™ฉ.

 

๋ฌผ๋ฆฌ์ ์ธ ๋””์Šคํฌ๋ฅผ ์ฆ์„คํ•˜์˜€๋‹ค๋ฉด, ํŒŒํ‹ฐ์…˜ + ํŒŒ์ผ ์‹œ์Šคํ…œ์„ ์ด์šฉํ•˜์—ฌ ํ™•์žฅํ•˜๋Š” ๊ณผ์ •๊นŒ์ง€ ๊ฑฐ์ณ์•ผ OS๊ฐ€ ์ œ๋Œ€๋กœ ์ธ์‹ํ•œ๋‹ค.

  • /dev/mapper/ubuntu--vg-ubuntu--lv : LVM์˜ Logical Volume. ๋ฃจํŠธ ํŒŒํ‹ฐ์…˜๊ณผ ๋งคํ•‘๋œ ํŒŒ์ผ ์‹œ์Šคํ…œ
  • sda : 150GB ๋””์Šคํฌ (๊ธฐ์กด 80G)
  • sda1 : 1MB, ๋ถ€ํŒ… ๊ด€๋ จ
  • sda2 : 2GB, /boot
  • sda3 : 78GB, ๋ฃจํŠธ ํŒŒํ‹ฐ์…˜ ์œ„์น˜ → ์—ฌ๊ธฐ๋ฅผ 150GB๋กœ ์ฆ์„คํ•˜๊ณ 
    • ubuntu--vg-ubuntu--lv : 39GB, LVM ๋ณผ๋ฅจ ํฌ๊ธฐ์ด์ž ๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ์— ๋งˆ์šดํŠธ๋œ ๊ณต๊ฐ„ → ์—ฌ๊ธฐ๋„ 150GB๋กœ FREE SPACE ๋ชจ๋‘ ํ• ๋‹นํ•ด ์ฃผ์–ด์•ผ ํ•จ

 

๋””์Šคํฌ ์šฉ๋Ÿ‰ ์ฆ์„ค

1. ์ž„์‹œ ํŒŒ์ผ ์‚ญ์ œํ•˜์—ฌ ๊ณต๊ฐ„ ํ™•๋ณด

๋จผ์ € ํ˜„์žฌ ๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ๊ฐ€ 100% ์‚ฌ์šฉ์ค‘์ด๋ผ ์ž„์‹œ ํŒŒ์ผ ์ƒ์„ฑ์ด ์•ˆ๋˜๋ฏ€๋กœ ์ˆ˜๋ฐฑ ๋ฉ”๊ฐ€ ์ •๋„์˜ ๊ณต๊ฐ„์ด๋ผ๋„ ํ™•๋ณด๊ฐ€ ํ•„์š”ํ•˜๋‹ค.

mkdir: cannot create directory '/tmp/growpart.1621': No space left on device
FAILED: failed to make temp dir

→ /tmp ๋””๋ ‰ํ† ๋ฆฌ(์ž„์‹œ ํด๋”)์— ๊ณต๊ฐ„์ด ์—†์–ด growpart(ํŒŒํ‹ฐ์…˜ ์กฐ์ •) ๋ช…๋ น ์‹คํ–‰์ด ์•ˆ๋จ

 

# apt ์บ์‹œ ์‚ญ์ œ
$ apt clean

# ๋กœ๊ทธ ํŒŒ์ผ ์ •๋ฆฌ
$ rm -rf /var/log/*.gz
$ rm -rf /var/log/*.[0-9]
$ rm -rf /var/log/*.log   # ์ฃผ์š” ๋กœ๊ทธ ์žˆ์œผ๋ฉด ์ด๊ฑด ๋นผ๊ณ  gz(์˜ค๋ž˜๋œ ๊ฒƒ)๋งŒ

# ์ปค๋„ ์ด๋ฏธ์ง€, ๋ถˆํ•„์š”ํ•œ ํŒจํ‚ค์ง€ ์ •๋ฆฌ
$ apt autoremove --purge

# ๋ถˆํ•„์š”ํ•œ ํŒŒ์ผ ์ˆ˜๋™ ์‚ญ์ œ
$ rm -rf /tmp/*
$ rm -rf /var/tmp/*

 

2. ํŒŒํ‹ฐ์…˜ ์žฌํ• ๋‹น

ํŒŒํ‹ฐ์…˜์„ ๊ด€๋ฆฌํ•˜๋Š” ๋ช…๋ น์–ด์ธ growpart๋ฅผ ์ด์šฉํ•˜์—ฌ ํŒŒํ‹ฐ์…˜ ํฌ๊ธฐ๋ฅผ ์กฐ์ •ํ•œ๋‹ค. /dev/sda ํ•˜์œ„์˜ 3๋ฒˆ์งธ ํŒŒํ‹ฐ์…˜ ์šฉ๋Ÿ‰์„ ํ‚ค์šด๋‹ค๋Š” ๋œป.

$ growpart /dev/sda 3

# ์„ค์น˜๋˜์ง€ ์•Š์•˜๋‹ค๋ฉด ์•„๋ž˜ ๋ช…๋ น ์‹คํ–‰ํ•˜์—ฌ ์„ค์น˜
$ apt install cloud-guest-utils

 

๋ฌผ๋ฆฌ ๊ณต๊ฐ„(Physical Volume) ํ™•์žฅ

LVM ์‹œ์Šคํ…œ์—๊ฒŒ sda3 ํŒŒํ‹ฐ์…˜์˜ ์ถ”๊ฐ€ ๊ณต๊ฐ„์„ ์‚ฌ์šฉํ•˜๋ผ๊ณ  ์•Œ๋ฆฌ๋Š” ์ž‘์—…

pvresize /dev/sda3

 

๋…ผ๋ฆฌ ๊ณต๊ฐ„(Logical Volume) ํ™•์žฅ

๋‚จ์€ ๋ชจ๋“  Free Space๋ฅผ ๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ์— ํ• ๋‹นํ•˜๊ธฐ

lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv

 

ํŒŒ์ผ ์‹œ์Šคํ…œ ํ™•์žฅ

# ํŒŒ์ผ ์‹œ์Šคํ…œ ํƒ€์ž…๋ถ€ํ„ฐ ํ™•์ธ
$ df -T /

# type์ด ext4์ธ ๊ฒฝ์šฐ
$ resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

# xfs์ธ ๊ฒฝ์šฐ
$ xfs_growfs /

 

 

๊ฒฐ๊ณผ ํ™•์ธ

lsblk, df ๋ช…๋ น์–ด๋ฅผ ์ด์šฉํ•˜์—ฌ ๋””์Šคํฌ ์šฉ๋Ÿ‰์ด ์ •์ƒ์ ์œผ๋กœ ์ฆ์„ค๋˜์—ˆ๋Š”์ง€ ํ™•์ธํ•œ๋‹ค.

$ lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
loop0                       7:0    0   87M  1 loop /snap/lxd/27037
loop1                       7:1    0 63.9M  1 loop /snap/core20/2105
loop2                       7:2    0 89.4M  1 loop /snap/lxd/31333
loop3                       7:3    0 40.4M  1 loop /snap/snapd/20671
loop4                       7:4    0 44.4M  1 loop /snap/snapd/23771
sda                         8:0    0  150G  0 disk 
โ”œโ”€sda1                      8:1    0    1M  0 part 
โ”œโ”€sda2                      8:2    0    2G  0 part /boot
โ””โ”€sda3                      8:3    0  148G  0 part 
  โ””โ”€ubuntu--vg-ubuntu--lv 253:0    0  148G  0 lvm  /
sr0                        11:0    1    2G  0 rom
df -h
Filesystem                         Size  Used Avail Use% Mounted on
tmpfs                              791M   20M  771M   3% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  146G   38G  102G  28% /
tmpfs                              3.9G     0  3.9G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
/dev/sda2                          2.0G  126M  1.7G   7% /boot
tmpfs                              791M  4.0K  791M   1% /run/user/1000

 

sda3 ํŒŒํ‹ฐ์…˜์ด 148G๋ฅผ ๊ฐ–๊ฒŒ ๋˜์—ˆ๊ณ , ๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ์˜ Use%๊ฐ€ 100%์—์„œ 28%๋กœ ์—ฌ์œ ๊ฐ€ ์ƒ๊ธด ๊ฑธ ํ™•์ธํ•  ์ˆ˜ ์žˆ๋‹ค.

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