linux xfs 파일 시스템 용량 확장

/ 용량 부족 해서 200GB 추가 예정

[root@localhost ~]# df -h
Filesystem                                        Size  Used Avail Use% Mounted on
...
/dev/mapper/rl-root                                44G   44G   20K 100% /
...

 

1. 디스크 추가 

Disk /dev/xvdb: 200 GiB 추가  확인

[root@localhost ~]# fdisk -l
Disk /dev/xvda: 50 GiB, 53687091200 bytes, 104857600 sectors
...
Device     Boot   Start       End   Sectors Size Id Type
/dev/xvda1 *       2048   2099199   2097152   1G 83 Linux
/dev/xvda2      2099200 104857599 102758400  49G 8e Linux LVM

Disk /dev/mapper/rl-root: 44 GiB, 47240445952 bytes, 92266496 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/mapper/rl-swap: 5 GiB, 5368709120 bytes, 10485760 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/xvdb: 200 GiB, 214748364800 bytes, 419430400 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: 0xf3d32962

 

2. lvm 파티션 생성

[root@localhost ~]# fdisk /dev/xvdb

Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


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):
First sector (2048-419430399, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-419430399, default 419430399):

Created a new partition 1 of type 'Linux' and of size 200 GiB.

Command (m for help): t
Selected partition 1
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'.

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

 

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3. pv 생성

[root@localhost ~]# pvcreate /dev/xvdb1
  Physical volume "/dev/xvdb1" successfully created.
[root@localhost ~]# pvdisplay
  --- Physical volume ---
  PV Name               /dev/xvda2
  VG Name               rl
  PV Size               <49.00 GiB / not usable 3.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              12543
  Free PE               0
  Allocated PE          12543
  PV UUID               BjiuTe-ZtYS-eU5z-dC9s-Y8Nw-or1j-HVP95j

  "/dev/xvdb1" is a new physical volume of "<200.00 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/xvdb1
  VG Name
  PV Size               <200.00 GiB
  Allocatable           NO
  PE Size               0
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               pDQW9R-umbN-6bQ7-Iw55-c4s2-D2vU-zDypeV
  
  [root@localhost ~]# pvscan
  PV /dev/xvda2   VG rl              lvm2 [<49.00 GiB / 0    free]
  PV /dev/xvdb1                      lvm2 [<200.00 GiB]
  Total: 2 [<249.00 GiB] / in use: 1 [<49.00 GiB] / in no VG: 1 [<200.00 GiB]

 

4. vg 그룹에 pv 추가

 > Couldn't create temporary archive name 에러 발생 시 vg 용량 정리 필요

[root@localhost ~]# vgextend rl /dev/xvdb1
  Couldn't create temporary archive name.  ->> 디스크 용량 부족하면 발생 , 디스크 정리 후 다시 실행

[root@localhost ~]# vgextend rl /dev/xvdb1
  Volume group "rl" successfully extended

 

5. 파티션 그룹에 붙이기

[root@localhost ~]# lvextend -l +100%FREE -n /dev/rl/root
  Size of logical volume rl/root changed from <44.00 GiB (11263 extents) to 243.99 GiB (62462 extents).
  Logical volume rl/root successfully resized.

 

6. pv / lv 확인

[root@localhost ~]# pvscan
  PV /dev/xvda2   VG rl              lvm2 [<49.00 GiB / 0    free]
  PV /dev/xvdb1   VG rl              lvm2 [<200.00 GiB / 0    free]
  Total: 2 [248.99 GiB] / in use: 2 [248.99 GiB] / in no VG: 0 [0   ]
  
[root@localhost ~]# lvscan
  ACTIVE            '/dev/rl/swap' [5.00 GiB] inherit
  ACTIVE            '/dev/rl/root' [243.99 GiB] inherit

 

7. 용량 확장 적용

xfs인 경우 -> xfs_growfs
ext4 인 경우 -> resize2fs

[root@localhost ~]# xfs_growfs /dev/rl/root
meta-data=/dev/mapper/rl-root    isize=512    agcount=4, agsize=2883328 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=0 inobtcount=0
data     =                       bsize=4096   blocks=11533312, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=5631, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 11533312 to 63961088

[root@localhost ~]# df -h
Filesystem                                        Size  Used Avail Use% Mounted on
...
/dev/mapper/rl-root                               244G   45G  200G  19% /