[BEGIN] 2025-06-23 11:42:48
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 5.8G 45G 12% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 9.4M 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vda1 1014M 209M 806M 21% /boot
/dev/vdb1 500G 8.4G 492G 2% /data
/dev/mapper/centos-home 42G 37M 42G 1% /home
tmpfs 1.6G 8.0K 1.6G 1% /run/user/42
tmpfs 1.6G 0 1.6G 0% /run/user/0
[root@localhost ~]# umount /dev/vdb1
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 5.8G 45G 12% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 9.4M 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vda1 1014M 209M 806M 21% /boot
/dev/mapper/centos-home 42G 37M 42G 1% /home
tmpfs 1.6G 8.0K 1.6G 1% /run/user/42
tmpfs 1.6G 0 1.6G 0% /run/user/0
[root@localhost ~]# 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.
Command (m for help): m
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): d
Selected partition 1
Partition 1 is deleted
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-1468006399, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-1468006399, default 1468006399):
Using default value 1468006399
Partition 1 of type Linux and of size 700 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# partprobe
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# mount /dev/vdb1 /data
mount: /dev/vdb1 is already mounted or /data busy
/dev/vdb1 is already mounted on /data
[root@localhost ~]# umount /dev/vdb1 /data
umount: /data: not mounted
[root@localhost ~]#
[root@localhost ~]# mount /dev/vdb1 /data
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 5.8G 45G 12% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 9.3M 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vda1 1014M 209M 806M 21% /boot
/dev/mapper/centos-home 42G 37M 42G 1% /home
tmpfs 1.6G 8.0K 1.6G 1% /run/user/42
tmpfs 1.6G 0 1.6G 0% /run/user/0
/dev/vdb1 500G 8.4G 492G 2% /data
[root@localhost ~]# xfs_growfs /dev/vdb1
meta-data=/dev/vdb1 isize=512 agcount=4, agsize=32767936 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=131071744, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=63999, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 131071744 to 183500544
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 5.8G 45G 12% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 9.4M 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vda1 1014M 209M 806M 21% /boot
/dev/mapper/centos-home 42G 37M 42G 1% /home
tmpfs 1.6G 8.0K 1.6G 1% /run/user/42
tmpfs 1.6G 0 1.6G 0% /run/user/0
/dev/vdb1 700G 8.4G 692G 2% /data
