VMware나 cloud 운영 시 서버에 디스크를 추가했을 때 mount 작업
하기는 Ncloud 환경이다.
300GB 디스크를 추가했고 "xvdb" 를 mount 시키는 과정이다.
on-prem 이나 vm등도 다를것은 없다.
# fdisk -l
Disk /dev/xvda: 53.7 GB, 53687091200 bytes, 104857600 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 label type: dos
Disk identifier: 0x0002afae
Device Boot Start End Blocks Id System
/dev/xvda1 2048 4095 1024 83 Linux
/dev/xvda2 4096 4198399 2097152 82 Linux swap / Solaris
/dev/xvda3 * 4198400 104857599 50329600 83 Linux
Disk /dev/xvdb: 322.1 GB, 322122547200 bytes, 629145600 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<디스크 파티션 설정>
# fdisk /dev/xvdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xd2c87c23.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-629145599, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-629145599, default 629145599):
Using default value 629145599
Partition 1 of type Linux and of size 300 GiB is set
Command (m for help): help
h: unknown command
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
g create a new empty GPT partition table
G create an IRIX (SGI) partition table
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): w
<파일시스템 설정>
fdisk -l 확인
Device Boot Start End Blocks Id System
/dev/xvdb1 2048 629145599 314571776 83 Linux
# mkfs.ext4 /dev/xvdb1 (파일시스템 지정)
******* 기존에 다 ext4 사용해서 그냥 사용
* CentOS 5.x: mkfs.ext3 /dev/xvdb1
* CentOS 6.x: mkfs.ext4 /dev/xvdb1
* CentOS 7.x: mkfs.xfs /dev/xvdb1 <스토리지 마운트>
/data dir은 mkdir -p /root/data로 만들어둔 상태
# mount /dev/xvdb1 /data/
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda3 48G 1.9G 47G 4% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.8G 0 1.8G 0% /dev/shm
tmpfs 1.8G 8.4M 1.8G 1% /run
tmpfs 1.8G 0 1.8G 0% /sys/fs/cgroup
tmpfs 354M 0 354M 0% /run/user/0
/dev/xvdb1 296G 65M 281G 1% /data<fstab 자동마운트에 추가>
추가한 xvdb1의 uuid 확인 후 fstab에 추가
# ll /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 11 Jan 22 16:06 29c3edf0-5d6b-4440-941f-67d5246bbf6c -> ../../xvdb1
lrwxrwxrwx 1 root root 11 Jan 22 15:50 592b6c47-fdb8-44ca-8bc7-d8ce52ce53b3 -> ../../xvda3
lrwxrwxrwx 1 root root 11 Jan 22 15:50 fb8d6192-b7c8-4ab7-bda0-2107ec77d696 -> ../../xvda2
# vi /etc/fstab
UUID=592b6c47-fdb8-44ca-8bc7-d8ce52ce53b3 / xfs defaults 0 0
UUID=fb8d6192-b7c8-4ab7-bda0-2107ec77d696 swap swap defaults 0 0
UUID=29c3edf0-5d6b-4440-941f-67d5246bbf6c /data ext4 defaults 1 1
sysop