京東雲掛載雲磁盤

查看分區

[root@website ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 40G 1.8G 39G 5% /
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 16K 3.9G 1% /dev/shm
tmpfs 3.9G 8.4M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 783M 0 783M 0% /run/user/0

查看磁盤

[root@website ~]# fdisk -l

Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 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: 0x000a5a8a

Device Boot Start End Blocks Id System
/dev/vda1 * 2048 83886079 41942016 83 Linux

Disk /dev/vdb: 214.7 GB, 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

磁盤分區

[root@website ~]# fdisk /dev/vdb
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 0xe7ae2b1f.

Command (m for help): m #查看幫助
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): n #新建分區
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p #新建主分區
Partition number (1-4, default 1):
First sector (2048-419430399, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-419430399, default 419430399):
Using default value 419430399
Partition 1 of type Linux and of size 200 GiB is set

Command (m for help): p #查看分區

Disk /dev/vdb: 214.7 GB, 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
Disk label type: dos
Disk identifier: 0xe7ae2b1f

Device Boot Start End Blocks Id System
/dev/vdb1 2048 419430399 209714176 83 Linux

Command (m for help): w #保存
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

再次查看分區

[root@website ~]# fdisk -l

Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 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: 0x000a5a8a

Device Boot Start End Blocks Id System
/dev/vda1 * 2048 83886079 41942016 83 Linux

Disk /dev/vdb: 214.7 GB, 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
Disk label type: dos
Disk identifier: 0xe7ae2b1f

Device Boot Start End Blocks Id System
/dev/vdb1 2048 419430399 209714176 83 Linux

格式化新增分區

[root@website ~]# mkfs.xfs /dev/vdb1
meta-data=/dev/vdb1 isize=512 agcount=4, agsize=13107136 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=52428544, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=25599, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0

創建文件夾用於掛載磁盤

[root@website ~]# mkdir /data

掛載磁盤到文件

[root@website ~]# mount /dev/vdb1 /data
[root@website ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 40G 1.8G 39G 5% /
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 16K 3.9G 1% /dev/shm
tmpfs 3.9G 8.4M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 783M 0 783M 0% /run/user/0
/dev/vdb1 200G 33M 200G 1% /data

配置開機掛載磁盤

[root@website ~]# cat /etc/fstab
UUID=4fb2f21e-8b37-4461-9163-eced787a0565 / xfs defaults 0 0
/dev/vdb1 /data xfs defaults 0 0