AWS EC2 Root Volume 설정

AWS EC2 Root Volume 설정

- AWS 인스턴스 경우 Amazon Linux 가 아니면 처음 생성 시 Root Volume을 사용자 지정 Size 입력 후
생성하면 기본 Size로 밖에 적용이 되지 않는다.

- 파티션 재설정을 통하여 지정한 DISK 용량을 반영

[볼륨 사이즈 확인]

[root@ip-10-10-10-146 ~]# lsblk

NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

xvda    202:0    0  20G  0 disk

└─xvda1 202:1    0   8G  0 part /

[root@ip-10-10-10-146 ~]# resize2fs /dev/xvda1

resize2fs 1.41.12 (17-May-2010)

The filesystem is already 2096896 blocks long.  Nothing to do!

 

[볼륨 파티션 설정]

[root@ip-10-10-10-146 ~]# fdisk /dev/xvda

 

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

         switch off the mode (command 'c') and change display units to

         sectors (command 'u').

 

Command (m for help): u

Changing display/entry units to sectors

 

Command (m for help): p

 

Disk /dev/xvda: 21.5 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders, total 41943040 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: 0x00051282

 

    Device Boot      Start         End      Blocks   Id  System

/dev/xvda1   *        2048    16777215     8387584   83  Linux

 

Command (m for help): d

Selected partition 1

 

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): 1

First sector (63-41943039, default 63): 2048

Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039):  enter

Using default value 41943039

 

Command (m for help): p

 

Disk /dev/xvda: 21.5 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders, total 41943040 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: 0x00051282

 

    Device Boot      Start         End      Blocks   Id  System

/dev/xvda1            2048    41943039    20970496   83  Linux

 

Command (m for help): a

Partition number (1-4): 1

 

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: Device or resource busy.

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.

[설정 후 리부팅]

[root@ip-10-10-10-146 ~]#

[root@ip-10-10-10-146 ~]#

[root@ip-10-10-10-146 ~]# lsblk

NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

xvda    202:0    0  20G  0 disk

└─xvda1 202:1    0   8G  0 part /

[root@ip-10-10-10-146 ~]# df -h

Filesystem      Size  Used Avail Use% Mounted on

/dev/xvda1      7.8G  752M  6.7G  10% /

tmpfs           498M     0  498M   0% /dev/shm

[root@ip-10-10-10-146 ~]#

[root@ip-10-10-10-146 ~]#

[root@ip-10-10-10-146 ~]# reboot

 

[리부팅 후 확인]

[centos@ip-10-10-10-146 ~]$ df -h

Filesystem      Size  Used Avail Use% Mounted on

/dev/xvda1       20G  756M   18G   4% /

tmpfs           498M     0  498M   0% /dev/shm

[centos@ip-10-10-10-146 ~]$ lsblk

NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

xvda    202:0    0  20G  0 disk

└─xvda1 202:1    0  20G  0 part /